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Rayleigh-driven ethanol cluster tracking based on non-contact deep optical molecular diagnosis 认领 引用
1
作者 Geon Mo Kim Yun Ji Hwang +4 位作者 Chengyi Li Teajong Hwang In-Sung Hwang James Hone Seong Chan Jun 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2026年第6期52-69,共18页
Investigating the composition ratio of ethanol–water molecular clusters in air,which are responsible for anisotropic behavior,is a significant challenge,primarily owing to the difficulty of detecting Rayleigh scatter... Investigating the composition ratio of ethanol–water molecular clusters in air,which are responsible for anisotropic behavior,is a significant challenge,primarily owing to the difficulty of detecting Rayleigh scattering,an inherently weak signal highly susceptible to external interference.This study overcame these limitations by integrating laser diffraction focusing with artificial neural networks.We demonstrate a fully non-contact sensing system that circumvents the direct measurement of difficult-to-distinguish Rayleigh scattering signals.Our approach infers ethanol content by utilizing a self-fabricated multi-layered graphene Fresnel lens.An analysis of gaseous ethanol content in the 0.01%–0.1%range revealed that while a wavelength of 405 nm exhibited high sensitivity with up to a 7%intensity change corresponding to ethanol content,a wavelength of 638 nm provided superior stability for deeplearning analysis as its intensity parameter remained fixed.Ultimately,by combining the 638 nm laser with our selfdeveloped self-aware assembly network model,we successfully inferred ethanol content with an R2 of 0.884,even under varied power conditions.This study creates a new path for recognizing weak Rayleigh scattering signals that were previously difficult to measure and may facilitate the development of rapid and durable sensing systems,such as for the non-invasive diagnosis of gas molecules. 展开更多
关键词 Rayleigh scattering ethanol-cluster Fresnel lens deep learning ethanol content inference
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Flame stabilization and pollutant reduction of NH_3/Air premixed flame with ethanol spray in a tangential swirl combustor 认领 引用
2
作者 Dingjiang XIE Yong TANG +4 位作者 Kuanyu WANG Qing CAO Baolu SHI Majie ZHAO Ningfei WANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2026年第4期88-99,共12页
This work aims to establish a stable premixed ammonia/air flame in a tangential swirl combustor by employing an ethanol spray to extend the fuel-lean extinction limit of the ammonia flame and reduce pollutant emission... This work aims to establish a stable premixed ammonia/air flame in a tangential swirl combustor by employing an ethanol spray to extend the fuel-lean extinction limit of the ammonia flame and reduce pollutant emissions.A Planar Laser Induced Fluorescence(PLIF)system is introduced to acquire the flame structure of this blending system.The results demonstrate that OH radicals originating from the ethanol flame support the ammonia flame,in which fluorescence images are indicated by the NH2radicals.Moreover,the lean extinction limit is significantly extended from an equivalence ratio of 0.6 to 0.1.In particular,the addition of a minor quantity of ethanol(3 mL/min)to ammonia flame sustains the blending flame due to the ultralow extinction limit of the ethanol swirl spray flame.However,both experimental data and chemical reaction analysis reveal that an increase in OH radical concentration leads to an elevation in NOx(nitrogen oxides)concentration.This poses a challenge in balancing the effects of ammonia consumption and NOxgeneration in the blending combustion system.Ethanol flames indeed generate active radicals(O,OH,HO2,etc.)to accelerate ammonia oxidation.However,these active radicals also exacerbate the reaction between NO and NO2,inhibiting their conversion to N2.Even so,the objective of achieving clean combustion with low concentrations of both NOxand unburned NH_3 can still be met under the condition of the total air flow rate 90 L/min and the global equivalence ratio 0.7. 展开更多
关键词 Ammonia Blending combustion Ethanol Lean extinction limit Pollutant emissions Tubular swirl flame
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Electronic modulation of Pd nanoparticles by thioether-functionalized covalent organic framework for efficient ethanol oxidation 认领 引用
3
作者 Haichang Fu Zihan Zhou +9 位作者 Yiting Zhang Yukun Gu Yuheng Yang Kexin Li Xinyu Li Hua Yan Yanxian Jin Dan Chen Kai Huang Zhangxin Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第7期426-436,I0011,共11页
Developing electrocatalysts that combine high catalytic activity with efficient C-C bond cleavage remains a major challenge in the ethanol oxidation reaction(EOR).Tuning the electronic metal-support interaction(EMSI)h... Developing electrocatalysts that combine high catalytic activity with efficient C-C bond cleavage remains a major challenge in the ethanol oxidation reaction(EOR).Tuning the electronic metal-support interaction(EMSI)has attracted considerable attention as a promising strategy for designing high-performance catalysts.Herein,we report the rational design of a thioether-functionalized covalent organic framework(COF-S)via thiol-ene click chemistry.The strong interaction between the thioether groups and Pd nanoparticles(NPs)enables effective immobilization of Pd NPs within the COF-S framework.The resulting Pd/COF-S catalyst exhibits exceptional activity and stability for the EOR,delivering a mass activity of 2.99 A mgPd-1—substantially higher than those of Pd/COF-V(1.60 A mgPd-1)and commercial Pd/C(0.58 A mgPd-1).In situ FTIR spectroscopy combined with theoretical calculations reveals that the thioether-containing Pd/COF-S catalyst promotes C-C bond cleavage during the EOR.The introduction of thioether groups optimizes the electronic structure of Pd by up-shifting its d-band center,which facilitates C-C bond cleavage and enhances the catalytic activity performance.This work offers an effective strategy for boosting the activity and selectivity of Pd-based catalysts through rational support design and electronic structure modulation. 展开更多
关键词 Electronic modulation Thiol-ene click chemistry Covalent organic framework Pd catalysts Ethanol electrooxidation
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Research on the electrostatic spray characteristics of ethanol/n-butanol blended fuels 认领 引用
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作者 Junxing Hou Yuqi Sun +1 位作者 Wenshuai Hu Yifan Liu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第5期94-101,共8页
This study investigated the electrostatic spray modes and characteristics of ethanol-butanol blended fuels E20,E40,E60,and E80.The effects of electrode spacing,ethanol blending ratio,fuel flow rate,and nozzle diameter... This study investigated the electrostatic spray modes and characteristics of ethanol-butanol blended fuels E20,E40,E60,and E80.The effects of electrode spacing,ethanol blending ratio,fuel flow rate,and nozzle diameter on the electrostatic spray performance were examined.The research results indicate that within the voltage range of 0—15 kV,ethanol exhibits electrostatic spray phenomena such as droplet,pulsed jet,cone-jet and multiple-jet in sequence,whereas n-butanol shows significantly poor electrostatic spray performance.With the increase in the ethanol-butanol blending ratio,the spray mode remains unchanged,but the critical voltage for each mode decreases.As the electrode spacing increases,the spray performance deteriorates.Within the voltage range of 7—8 kV,E20,E40,E60,and E80 exhibit a stable cone-jet mode.Additionally,as the ethanol blending ratio increases,both the spray cone angle and spray area increase.When the fuel flow rate increases from 0.1 to 0.3 ml·min-1,the electrostatic spray cone angle and spray area also increase.However,beyond 0.3 ml·min-1,no further increase is observed.When the nozzle diameter decreases from 1.05 mm to 0.50 mm,there is no significant change in the electrostatic spray cone angle or spray area. 展开更多
关键词 Electrostatic spray Ethanol n-Butanol Spray mode Spray cone angle
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Thermocatalytic CO2hydrogenation to high-yield ethanol and C3-C5alcohols over promoted Fe-based catalysts 认领 引用
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作者 Andrii Kostyniuk Stanislav Yakushkin Blaz Likozar 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第5期322-338,I0008,共17页
Direct catalytic hydrogenation is an effective approach for CO2utilization to produce ethanol and higher alcohols(HA),but developing non-precious metal catalysts with high activity and selectivity remains a major c... Direct catalytic hydrogenation is an effective approach for CO2utilization to produce ethanol and higher alcohols(HA),but developing non-precious metal catalysts with high activity and selectivity remains a major challenge.In this study,we report the development of a highly efficient 4 wt%Rb/25 wt%Cu-25wt%Zn-50 wt%Fe catalyst,synthesized via the co-precipitation method,for the selective hydrogenation of CO2to ethanol and HA in a continuous flow fixed-bed reactor.The catalyst delivers an ethanol space-time yield(STY)of 4.4 mmol g-1cath-1with 48.8%ethanol selectivity in the gas phase,while the condensed liquid fraction exhibits a maximum C2+OH selectivity of 85.3%under 20 bar(H2/CO2=3)in the temperature range of 200-300℃over 16-19 h.The superior catalytic performance is attributed to the optimized Rb loading,which enhances structural stability,preserves crystallinity,and mitigates Cu leaching.The Rb-promoting effect on C-C coupling arises from the synergistic interactions among Rb-Cu-Fe,as well as Rb-Cu-Zn.This synergy facilitates the formation of CH3CH2O*,CH3COO*,and CH3CHO*species on Rb/Cu-Fe5C2and Rb/CuZn sites.Notably,the 4%Rb/CuZn Fe catalyst exhibits the most significant modifications in its electronic environment,likely due to changes in oxygen vacancies and altered metal-oxygen interactions upon Rb incorporation.Furthermore,the 4%Rb content plays a critical role in maintaining an optimal balance between catalyst basicity and oxygen vacancies,effectively enhancing CO2activation while suppressing side reactions.These findings underscore the potential of Rb-modified CuZn Fe catalysts for efficient CO2hydrogenation to HA,offering a promising avenue for sustainable chemical production. 展开更多
关键词 CO2hydrogenation Rb/CuZnFe heterogeneous catalyst C-C coupling Ethanol and higher alcohols synthesis
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Tailoring interaction between rhodium and CeO2 by crystal facets selection to enhance ethanol synthesis via CO2 hydrogenation 认领 引用 被引量：1
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作者 Fei Hong Dongsen Mao +3 位作者 Tao Meng Guisheng Wu Haifang Mao Jun Yu 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第3期822-831,I0004,共10页
The hydrogenation of carbon dioxide to produce high-value fuels such as ethanol is currently a research hotspot,but addressing the low selectivity for ethanol remains a challenge.Herein,morphologycontrolled CeO2 wi... The hydrogenation of carbon dioxide to produce high-value fuels such as ethanol is currently a research hotspot,but addressing the low selectivity for ethanol remains a challenge.Herein,morphologycontrolled CeO2 with different exposed crystal facets,including nanorods(220),nanocubes(200)and nanoplatelets(111),were prepared and impregnated with rhodium(Rh)to obtain Rh/CeO2 catalysts,and then the catalytic performance of CO2 hydrogenation was investigated.Rh/CeO2-r(nanorods)exhibits high efficacy for CO2 hydrogenation to ethanol,giving a high ethanol selectivity of 20.9%with a moderate CO2 conversion of 11.2%,and the one-pass ethanol productivity reaches 69.2 mmol/(gRh·h).Characterization results reveal that tuning the exposed crystal facets of the CeO2 can tailor the interaction between Rh and CeO2,and adjust the chemical state of the Rh species.Due to the abundant oxygen vacancies occupied on the exposed(220)facets of CeO2 nanorods,multi-level interactions arise between Rh and CeO2-r,and produce more content of Rh+species.This interface facilitates the transformation of carbonate species into HCOO*and CO*simultaneously,finally boosting the ethanol formation by the C-C coupling reaction. 展开更多
关键词 Crystal facet Rh/CeO2 CO2hydrogenation Ethanol synthesis Rare earths
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Design and optimization of a high-efficiency distillation process for cellulosic fuel ethanol integrated with thermal coupling and molecular sieve adsorption 认领 引用 被引量：1
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作者 Xuefeng Feng Shuaishuai Lu +6 位作者 Xuan Du Shaolan Zhuang Zhongqi Ren Zhongwei Ding Qunsheng Li Weiying Feng Hongkang Zhao 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第1期13-24,共12页
To address the challenges of high energy consumption and prominent costs in the traditional three-columns distillation process for cellulosic fuel ethanol,a distillation–molecular sieve coupling separation process is... To address the challenges of high energy consumption and prominent costs in the traditional three-columns distillation process for cellulosic fuel ethanol,a distillation–molecular sieve coupling separation process is proposed.This process integrates a three-column(crude distillation column,first distillation column,second distillation column)system with a 3A molecular sieve adsorption deep dehydration unit.A thermal coupling network is constructed via differential pressure design(steam from medium/high-pressure columns as mutual heat sources,reboiler liquid waste heat for feed preheating),and molecular sieve adsorption conditions are optimized.The study first performs a thermodynamic consistency test on the ethanol–water system,determines optimal non-random two-liquid(NRTL)model binary interaction parameters via experimental data regression for Aspen Plus simulation.Aiming at minimum total annual cost(TAC),Aspen Plus is used to optimize process parameters(theoretical tray number,feed location,reflux ratio,side-draw position,etc.).Economic analysis shows this process reduces CO2 emission costs by 27.56%,TAC by 15.58%(to 5.123×106 USD·a−1),and increases ethanol purity to>99.6%,providing an effective solution for green,efficient separation. 展开更多
关键词 Cellulosic fuel ethanol Three-columns distillation process Distillation–molecular sieve coupling Aspen Plus simulation Total annual cost(TAC) Carbon dioxide emission cost
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A Review of CO2 Electroreduction to Ethanol:C-C Coupling Mechanistic Insights and Catalyst Design 认领 引用
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作者 Fang Zhao Bo Huang +3 位作者 Yingzheng Zhang Tianxin Wei Jiatao Zhang Di Zhao 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第9期449-486,共38页
As a major contributor to climate change,CO2 has imposed severe detrimental effects on global ecosystems.Among various CO2 conversion strategies,the electrocatalytic CO2 reduction reaction(eCO2RR)stands ou... As a major contributor to climate change,CO2 has imposed severe detrimental effects on global ecosystems.Among various CO2 conversion strategies,the electrocatalytic CO2 reduction reaction(eCO2RR)stands out due to its ability to operate under mild conditions using renewable electricity.Compared to gaseous C2 products such as ethylene,ethanol as a liquid fuel demonstrates greater economic potential and broader market prospects.In recent years,copper-based electrocatalysts have emerged as leading materials for the electrochemical conversion of CO2-to-ethanol.Meanwhile,a number of non-copper-based electrocatalysts have also been developed to produce ethanol via C–C coupling pathways distinct from those on Cu-based materials.However,few reviews have systematically addressed the reaction mechanisms and material design principles specific to ethanol production through eCO2RR.In this review,we highlight the most recent advancements in this field of study.We begin by assessing the economic viability of ethanol as a CO2 reduction product.This is followed by a systematic summary of the reaction mechanisms and advanced characterization methods involved in ethanol production via eCO2RR across various pathways.Next,we discuss and compare the catalytic active sites and key electrochemical performance metrics for ethanol generation on different types of electrocatalysts.Finally,we propose several promising strategies to guide the rational design and synthesis of next-generation high-performance electrocatalysts for selective ethanol production.This review comprehensively summarizes the latest research progress in the field of ethanol production via eCO2RR from multiple dimensions,including the economic value of ethanol,reaction mechanisms,an introduction to various electrocatalysts and strategies for improving electrocatalysts.It not only promotes in-depth basic research,but also provides theoretical guidance for electrocatalyst design,reaction condition optimization,and industrial applications,making it of great research value and practical significance. 展开更多
关键词 CO2electroreduction Ethanol Dynamic mechanism Electrocatalysts Optimization strategy
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Physiological and transcriptomic insights into ethanol stress tolerance in Lentilactobacillus hilgardii Q19 认领 引用
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作者 Jinxian Sun Xiaowen Liu +2 位作者 Luqiang Huang Wen Ma Gang Jin 《Food Science and Human Wellness》 SCIE CAS CSCD 2026年第2期836-850,共15页
Malolactic fermentation,started by lactic acid bacteria,plays a crucial role in the production of high-quality wines.As global warming increases the ethanol content in wines,the success of malolactic fermentation depe... Malolactic fermentation,started by lactic acid bacteria,plays a crucial role in the production of high-quality wines.As global warming increases the ethanol content in wines,the success of malolactic fermentation depends on selecting ethanol-tolerant strains,especially for wines from increasingly warm climates.Lentilactobacillus hilgardii Q19 was isolated and characterized as an indigenous malolactic bacterium with higher ethanol tolerance properties.In this study,it was indicated that ethanol stress had significant effects on ATPase activity,antioxidant system,and cell membrane of L.hilgardii Q19 by measuring the physiological indicators under stress which include H+-ATPase,Na+/K+-ATPase,Ca2+/Mg2+-ATPase activity,glutathione content,superoxide dismutase(SOD)activity and intracellular reactive oxygen species(ROS)content.The main metabolic pathways involved in ethanol stress such as ATP-binding cassette(ABC)transporters,pentose phosphate pathway,phosphotransferase system,glutathione metabolic pathway and two-component systems were screened by transcriptome sequencing analysis.The functions of the pentose phosphate pathway,pyruvate metabolic pathway and glycerolipid metabolism under ethanol stress were verified by constructing the L.hilgardii Q19 ethanol stress related key genes gnt K,pyk,and glp K overexpression vectors.The above findings may contribute to our understanding of the metabolic pathways and regulatory mechanisms of L.hilgardii Q19 in response to ethanol stress. 展开更多
关键词 Lentilactobacillus hilgardii Ethanol stress Transcriptome Gene overexpression Molecular mechanism
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Metabolic steering of landfill-derived microbial consortia for selective production of organic acids and ethanol under anaerobic acidification 认领 引用
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作者 Andriy Anta Kacaribu Yuliani Aisyah +1 位作者 Febriani Darwin 《Resources Chemicals and Materials》 EI 2026年第2期106-122,共17页
Transitioning from petrochemical-derived products to sustainable bioprocesses requires low-cost inocula and robust operational strategies.Yet,the undefined mixed inocula(UMI)tunability from landfill ecosystems for sel... Transitioning from petrochemical-derived products to sustainable bioprocesses requires low-cost inocula and robust operational strategies.Yet,the undefined mixed inocula(UMI)tunability from landfill ecosystems for selective chemical production remains underexplored.Here,we investigated ethanol and organic acid(acetate,lactate,and propionate)production during anaerobic acidification of starch using landfill-derived microbial consortia(LF-MC)and LF-MC pre-incubated in MRS broth(ILF-MC).Batch fermentations at 39±0.5℃(72 h)with starch loadings of 10-25 g/L and a shock load(100 g/L)revealed that ethanol remained stable across inocula(~20 mmol/L),underscoring process robustness,while product distribution varied markedly with inoculum type.LF-MC predominantly yielded acetate(102.9 mmol/L),supporting its application as a low-cost inoculum for acetate-oriented bioprocesses,whereas ILF-MC favored lactate accumulation(44.5 mmol/L),relevant for polylactic acid(PLA)bioplastic production.Shock-load conditions suppressed metabolite yields,emphasizing the need for substrate tolerance in process design.This study proves that landfill-derived consortia can be steered toward distinct product spectra,establishing a simple,tunable,and economically viable platform for sustainable waste-to-chemicals pathways in industrial biorefineries. 展开更多
关键词 Anaerobic acidogenic Landfill-derived microbe Organic acids Ethanol Industrial biorefineries
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Rational design of polyoxometalates/cobalt phthalocyanine hybrids: production of ethyl acetate through aerobic oxidation and self-esterification of ethanol 认领 引用
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作者 SI Jiahui CHEN Yuannan +3 位作者 QI Yu WANG Shuhang WANG Xiaohong WANG Qiwen 《分子科学学报》 CAS 2026年第2期23-30,共8页
A series of metal-substituted polyoxometalates K7PW11O39 and K5PW11MO39(abbreviated as PW11M,M=Co2+,Fe2+,Ni2+,Cu2+,Mn2+)were evaluated in oxidative esterification reactions.Subseque... A series of metal-substituted polyoxometalates K7PW11O39 and K5PW11MO39(abbreviated as PW11M,M=Co2+,Fe2+,Ni2+,Cu2+,Mn2+)were evaluated in oxidative esterification reactions.Subsequently,cobalt phthalocyanine(CoPc)was selected to react with polyanion to design a hybrid catalyst,PW11Co/CoPc,for the conversion of ethanol to ethyl acetate through an oxidative self-esterification process.Benefiting from the synergy between redox-active sites and acidic sites,as well as the electron transfer between PW11Co and CoPc,the catalyst achieved an ethyl acetate selectivity of 91.2%with an ethanol conversion of 85.1%using oxygen as the oxidant.After ten catalytic cycles,PW11Co/CoPc exhibited only a slight decrease in efficiency,demonstrating good reusability. 展开更多
关键词 Polyoxometalates oxidative esterification cobalt phthalocyanine ethanol
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Research progress on the cobalt-based catalysts for the hydrogenation of carbon dioxide to ethanol 认领 引用
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作者 BIAN Linghui WANG Jing +2 位作者 DING Chenyu SUN Wenjing WANG Ning 《燃料化学学报（中英文）》 EI CAS CSCD 北大核心 2026年第8期16-35,共20页
The catalytic hydrogenation of CO2 to ethanol represents a pivotal technology for achieving carbon neutrality and producing high-value fuels and chemicals,where developing the catalysts of high activity,high ethano... The catalytic hydrogenation of CO2 to ethanol represents a pivotal technology for achieving carbon neutrality and producing high-value fuels and chemicals,where developing the catalysts of high activity,high ethanol selectivity,and long-term stability is vitally important.Currently,the catalysts for the CO2 hydrogenation to produce ethanol mainly include noble metal-based catalysts(Pt,Pd,Rh,etc.)and Fischer-Tropsch synthesis catalysts(Fe,Co,Mo,etc.);among them,the cobalt-based catalysts have emerged as an ideal candidate for the thermocatalytic hydrogenation of CO2 to ethanol,owing to their unique electronic structure and tunability.However,the inherent chemical inertness of the relatively stable CO2 molecule poses a significant barrier to its activation.Furthermore,under high-temperature and high-pressure conditions,the hydrogenation of CO2 is highly prone to forming undesirable byproducts such as methane or CO,whereas the selective activation of CO2 and its subsequent conversion into ethanol remain particularly challenging.Accordingly,current processes for the CO2 hydrogenation to ethanol are greatly limited by the low single-pass conversion of CO2,insufficient selectivity toward the target product(ethanol<60%),and the tendency of catalysts to rapid deactivation.This review aims to conduct a systematic and in-depth analysis of the recent research progress of the cobalt-based catalysts used in the conversion of CO2 into ethanol.We first establish the basic reaction framework,clarify the thermodynamic boundary conditions,and determine the kinetic steps that control the overall reaction rate.When delving into the molecular-level events,we analyze the complex microscopic mechanisms responsible for the two most critical steps:the initial formation of C–C bonds and the subsequent controlled removal of oxygen.The formation of C–C bonds is a necessary and particularly delicate step for generating ethanol and other C2+products and the reaction mechanism of this step,whether through CO insertion,CO dimerization,or hydroxyl carbonyl(CHOH)coupling,is subject to intense debate and strongly influenced by the properties of the active sites.We then critically assess the synergistic effects among various active sites such as metallic Co,Co2C,CoOx and bimetallic configurations on the reaction mechanism;in particular,the structure-activity relationships influenced by the support effects and promoter modifications are thoroughly discussed.Lastly,the application of inverse catalysts and tandem catalytic systems in ethanol synthesis is reviewed.The role of water as a hydrogen source and its impact on the reaction are analyzed in depth.This review tries to integrate current knowledge and identifies existing shortcomings,which presents a forward-looking outlook on the innovative research directions for the cobalt-based catalysts and emphasizes the necessity of conducting complex in situ/operational characterization and theoretical modeling in the design of next generation multifunctional catalysts.All these may provide a valuable reference framework to stimulate and guide the development of future efficient cobalt-based catalytic systems,deepen the basic understanding of reaction processes and mechanisms,and ultimately accelerate the progress of CO2 hydrogenation technology for sustainable ethanol production. 展开更多
关键词 cobalt-based catalysts carbon dioxide ethanol reaction mechanism active sites
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Novel radiopaque ethanol injection:physicochemical properties,animal experiments,and clinical application in vascular malformations 认领 引用 被引量：4
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作者 Yu-Chen Shen De-Ming Wang +11 位作者 Xi-Tao Yang Zhen-Feng Wang Ming-Zhe Wen Yi-Feng Han Lian-Zhou Zheng Ruo-Yu Di Chun-Yu Jiang Jing-Bing Wang Jian-Xiong You Li-Ming Zhang Li-Xin Su Xin-Dong Fan 《Military Medical Research》 SCIE CAS CSCD 2025年第3期339-353,共15页
Background:Despite the efficacy of absolute ethanol(EtOH),its radiolucency introduces several risks in interventional therapy for treating vascular malformations.This study aims to develop a novel radiopaque ethanol i... Background:Despite the efficacy of absolute ethanol(EtOH),its radiolucency introduces several risks in interventional therapy for treating vascular malformations.This study aims to develop a novel radiopaque ethanol injection(REI)to address this issue.Methods:Iopromide is mixed with ethanol to achieve radiopacity and improve the physicochemical properties of the solution.Overall,82 male New Zealand white rabbits are selected for in vivo radiopacity testing,peripheral vein sclerosis[animals were divided into the following 5 groups(n=6):negative control(NC,saline,0.250 ml/kg),positive control(EtOH,0.250 ml/kg),low-dose REI(L-D REI,0.125 ml/kg),moderate-dose REI(M-D REI,0.250 ml/kg),and highdose REI(H-D REI 0.375 ml/kg)],pharmacokinetic analyses(the blood sample was harvested before injection,5 min,10 min,20 min,40 min,1 h,2 h,4 h,and 8 h after injection in peripheral vein sclerosis experiment),peripheral artery embolization[animals were divided into the following 5 groups(n=3):NC(saline,0.250 ml/kg),positive control(EtOH,0.250 ml/kg),L-D REI(0.125 ml/kg),M-D REI(0.250 ml/kg),and H-D REI(0.375 ml/kg)],kidney transcatheter arterial embolization[animals were divided into the following 4 groups(n=3):positive control(EtOH,0.250 ml/kg),L-D REI(0.125 ml/kg),M-D REI(0.250 ml/kg),and H-D REI(0.375 ml/kg);each healthy kidney was injected with saline as negative control],and biosafety evaluations[animals were divided into the following 5 groups(n=3):NC(0.250 ml/kg),high-dose EtOH(0.375 ml/kg),L-D REI(0.125 ml/kg),M-D REI(0.250 ml/kg),and H-D REI(0.375 ml/kg)].Then,a prospective cohort study involving 6 patients with peripheral venous malformations(VMs)is performed to explore the clinical safety and effectiveness of REI.From Jun 1,2023 to August 31,2023,6 patients[age:(33.3±17.2)years]with lingual VMs received sclerotherapy of REI and 2-month follow-up.Adverse events and serious adverse events were evaluated,whereas the efficacy of REI was determined by both the traceability of the REI under DSA throughout the entire injection and the therapeutic effect 2 months after a single injection.Results:The REI contains 81.4%ethanol(v/v)and 111.3 mg/ml iodine,which can be traced throughout the injection in the animals and patients.The REI also exerts a similar effect as EtOH on peripheral venous sclerosis,peripheral arterial embolization,and renal embolization.Furthermore,the REI can be metabolized at a similar rate compared to EtOH and Ultravist®and did not cause injury to the animals’heart,liver,spleen,lungs,kidneys and brain.No REIrelated adverse effects have occurred during sclerotherapy of VMs,and 4/6 patients(66.7%)have achieved complete response at follow-up.Conclusion:In conclusion,REI is safe,exerts therapeutic effects,and compensates for the radiolucency of EtOH in treating VMs.Trial registration:The clinical trial was registered as No.ChiCTR2300071751 on May 242023. 展开更多
关键词 Vascular malformation Ethanol Sclerotherapy Radiopacity Iopromide Radiopaque ethanol injection(REI)
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Design and Optimization of Anode Catalysts for Direct Ethanol Fuel Cells:Advances and Challenges in C-C bond Activation and Selective Modulation of the C1 Pathway 认领 引用
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作者 Kai-Chi Qin Meng-Tian Huo +3 位作者 Yu Liang Si-Yuan Zhu Zi-Hao Xing Jin-Fa Chang 《电化学（中英文）》 CAS 北大核心 2025年第8期1-22,共22页
Direct ethanol fuel cells(DEFCs)are a promising alternative to conventional energy sources,offering high energy density,environmental sustainability,and operational safety.Compared to methanol fuel cells,DEFCs exhibit... Direct ethanol fuel cells(DEFCs)are a promising alternative to conventional energy sources,offering high energy density,environmental sustainability,and operational safety.Compared to methanol fuel cells,DEFCs exhibit lower toxicity and a more mature preparation process.Unlike hydrogen fuel cells,DEFCs provide superior storage and transport feasibility,as well as cost-effectiveness,significantly enhancing their commercial viability.However,the stable C-C bond in ethanol creates a high activation energy barrier,often resulting in incomplete electrooxidation.Current commercial platinum(Pt)-and palladium(Pd)-based catalysts demonstrate low C-C bond cleavage efficiency(<7.5%),severely limiting DEFC energy output and power density.Furthermore,high catalyst costs and insufficient activity impede large-scale commercialization.Recent advances in DEFC anode catalyst design have focused on optimizing material composition and elucidating catalytic mechanisms.This review systematically examines developments in ethanol electrooxidation catalysts over the past five years,highlighting strategies to improve C1 pathway selectivity and C-C bond activation.Key approaches,such as alloying,nanostructure engineering,and interfacial synergy effects,are discussed alongside their mechanistic implications.Finally,we outline current challenges and future prospects for DEFC commercialization. 展开更多
关键词 Direct ethanol fuel cells Ethanol electrooxidation C-C bond cleavage Electrocatalysis Anode catalyst
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Exploring catalyst developments in heterogeneous CO2 hydrogenation to methanol and ethanol:A journey through reaction pathways 认领 引用 被引量：4
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作者 Rasoul Salami Yimin Zeng +2 位作者 Xue Han Sohrab Rohani Ying Zheng 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第2期345-384,I0008,共40页
The pursuit of alternative fuel generation technologies has gained momentum due to the diminishing reserves of fossil fuels and global warming from increased CO2emission.Among the proposed methods,the hydrogenation... The pursuit of alternative fuel generation technologies has gained momentum due to the diminishing reserves of fossil fuels and global warming from increased CO2emission.Among the proposed methods,the hydrogenation of CO2to produce marketable carbon-based products like methanol and ethanol is a practical approach that offers great potential to reduce CO2emissions.Although significant volumes of methanol are currently produced from CO2,developing highly efficient and stable catalysts is crucial for further enhancing conversion and selectivity,thereby reducing process costs.An in-depth examination of the differences and similarities in the reaction pathways for methanol and ethanol production highlights the key factors that drive C-C coupling.Identifying these factors guides us toward developing more effective catalysts for ethanol synthesis.In this paper,we explore how different catalysts,through the production of various intermediates,can initiate the synthesis of methanol or ethanol.The catalytic mechanisms proposed by spectroscopic techniques and theoretical calculations,including operando X-ray methods,FTIR analysis,and DFT calculations,are summarized and presented.The following discussion explores the structural properties and composition of catalysts that influence C-C coupling and optimize the conversion rate of CO2into ethanol.Lastly,the review examines recent catalysts employed for selective methanol and ethanol production,focusing on single-atom catalysts. 展开更多
关键词 CO2hydrogenation Methanol Ethanol Catalytic mechanism Operando techniques Single atom catalyst Tandem catalyst
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Tailoring Dynamic Surface Reconstruction on Nickel Oxalate for Enhanced Hydrogen Production and Zinc-Ethanol-Air Battery 认领 引用 被引量：2
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作者 Yong Beom Kim Sangwoo Kim +3 位作者 Yeongtaek Hong Jeongah Lee Hainan Sun WooChul Jung 《Carbon Energy》 SCIE EI CSCD 2025年第4期177-188,共12页
Substituting the sluggish oxygen evolution reaction with a more thermodynamically favorable ethanol oxidation reaction(EOR)offers an opportunity to circumvent the efficiency loss in water splitting and metal-air batte... Substituting the sluggish oxygen evolution reaction with a more thermodynamically favorable ethanol oxidation reaction(EOR)offers an opportunity to circumvent the efficiency loss in water splitting and metal-air batteries.However,the effect of the dynamic surface evolution of the catalyst in operating conditions on the activity of EOR lacks comprehensive understanding.Herein,we demonstrate a tunable operational catalyst activity through the modulated redox property of nickel oxalate(NCO)by establishing a relation between the oxidation behavior of Ni,surface reconstruction,and catalyst activity.We propose a repeated chemical-electrochemical reaction mechanism of EOR on NCO,which is rigorously investigated through a combination of operando Raman and nuclear magnetic resonance.The modulation of the oxidation trend of Ni by doping heteroatoms stimulates the electrochemical oxidation of the catalyst surface to NiOOH,which alters the catalyst activity for EOR.Assembled ethanol-assisted water electrolysis cell exhibits a reduced operating voltage for hydrogen production by 200 mV with a~100% Faradaic efficiency,and zinc-ethanol-air battery showed a 287 mV decreased charge-discharge voltage window and enhanced stability for over 500 h. 展开更多
关键词 3d-transition metal biomass upgrading ethanol oxidation reaction surface reconstruction zinc-ethanol-air battery
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Designing mesh-like defective molybdenum carbides for ethanol synthesis via syngas-derived DMO hydrogenation 认领 引用 被引量：1
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作者 Yannan Sun Jiafeng Yu +3 位作者 Xingtao Sun Yu Han Qingjie Ge Jian Sun 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2025年第6期234-241,共8页
Molybdenum carbide has shown great potential in various hydrogenation reactions,and serves as a primary active species for synthesis of ethanol from dimethyl oxalate hydrogenation process which is a crucial step in th... Molybdenum carbide has shown great potential in various hydrogenation reactions,and serves as a primary active species for synthesis of ethanol from dimethyl oxalate hydrogenation process which is a crucial step in the efficient utilization of coal resources.In this study,a molybdenum carbide catalyst with a three-dimensional mesh-like hollow structure and lattice defects was carefully designed.The MoO3precursor with abundant oxygen vacancies and defects was prepared by flame spray pyrolysis,and a structural modifier,Cu,was introduced by sputtering.The Cu deposited by sputtering affected the carburization and phase evolution processes.A three-dimensional mesh-like hollow structure composed of defective molybdenum carbide is formed,with theβ-Mo2C exhibiting lattice distortions and defects.This defectiveβ-Mo2C exhibits high reactivity,and facilitates the C=O hydrogenation process,showing a high reactivity of 83.1%yield in the hydrogenation of dimethyl oxalate.This work provides a new approach to the design and application of molybdenum carbide catalysts. 展开更多
关键词 Syngas Dimethyl oxalate Hydrogenation Ethanol Molybdenum carbides
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Identifying a bi-molecular synergetic adsorption mechanism for catalytic transformation of ethanol/acetaldehyde into 1,3-butadiene 认领 引用 被引量：1
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作者 Xianquan Li Jifeng Pang +7 位作者 Yujia Zhao Lin Li Wenguang Yu Feifei Xu Yang Su Xiaofeng Yang Wenhao Luo Mingyuan Zheng 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2025年第4期297-307,共11页
The catalytic synthesis of 1,3-butadiene(1,3-BD)from bio-based ethanol offers an alternative and sustainable process beyond petroleum.However,the intrinsic active sites and corresponding mechanism of 1,3-BD formation ... The catalytic synthesis of 1,3-butadiene(1,3-BD)from bio-based ethanol offers an alternative and sustainable process beyond petroleum.However,the intrinsic active sites and corresponding mechanism of 1,3-BD formation have not been fully elucidated yet.By correlating systematic characterization results with catalytic performance,the open Zr species,i.e.,Zr(OH)(OSi)3moieties,were identified as the active site over the Zr/MFI-BM catalysts for the catalytic transformation of ethanol-acetaldehyde into 1,3-BD.In conjunction with controlled experiments and theory calculations,ethanol and acetaldehyde are proposed to synergistically co-adsorb on the Zr(OH)(OSi)3species in a bi-molecular mode,which assists the acetaldehyde condensation and accelerates the critical Meerwein-Ponndorf-Verley-Oppenauer reduction,and accordingly promotes 1,3-BD formation.These findings will stimulate the search towards new metal-zeolite combinations for efficient production of value-added 1,3-BD via biomass-derived ethanol and beyond. 展开更多
关键词 1,3-Butadiene Bi-molecular Co-adsorption-mechanism Reaction mechanism Ethanol conversion
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Epsilon iron carbide derived from Fe4N for ethanol synthesis via ester hydrogenation 认领 引用 被引量：1
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作者 Huijiang Huang Xin Shang +7 位作者 Qiang Wang Meng Cao Fan Sun Wei Liu Yan Xu Junhu Wang Yujun Zhao Xinbin Ma 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第9期19-29,I0002,共11页
Ethanol synthesis via dimethyl oxalate hydrogenation has garnered increasing attention in the fields of syngas utilization.Althoughε-Fe2C has been identified as a promising active species for DMO hydrogenation to ... Ethanol synthesis via dimethyl oxalate hydrogenation has garnered increasing attention in the fields of syngas utilization.Althoughε-Fe2C has been identified as a promising active species for DMO hydrogenation to ethanol,its formation is kinetically challenging during carbonization.In this work,a Fe4N phase was first synthesized by pretreating a 30Fe/SiO2catalyst in an ammonia environment,followed by carbonization in a methanol-H2 flow to obtain ε-Fe2C as the active phase.Fe4N,rather than Fe-O-Si,facilitates the transformation into iron carbide during the carbonization process.The transformation pathway of iron nitride(FexN)is mediated by intermediate iron carbonyl species(Fe-CO),ultimately leading to the formation of iron carbide as the active phase.The resulting catalyst exhibited 40 times higher catalytic activity than the untreated catalyst in DMO hydrogenation.Combined structure properties and DFT calculation revealed that the lower energy barrier ofε-Fe2C for ester hydrogenation underpins/strengthens its superior performance,while the STY of ε-Fe2C is 2.8 times that ofε'-Fe2.2C and 58 times that ofχ-Fe5C2.This study provides a novel strategy for designing highly efficient iron carbide catalysts for the esters hydrogenation system. 展开更多
关键词 Fe4N Iron Carbide e-Fe2C Hydrogenation Ester Dimethyl oxalate Ethanol
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The interfacial effect of SiO2-Ni3Mo3N efficiently catalyzes the low-temperature hydrogenation of dimethyl oxalate to ethanol 认领 引用 被引量：1
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作者 Jiang Gong Fengling Zheng +6 位作者 Hanqing Zhang Weihan Shu Hao Wang Ni Zhang Pengbing Huang Chuancai Zhang Bin Dai 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第8期461-465,共5页
The hydrogenation of dimethyl oxalate(DMO)to ethanol(Et OH)represents a promising avenue for syngas conversion and plays a pivotal role in advancing sustainable energy economies.Nevertheless,designing catalysts with h... The hydrogenation of dimethyl oxalate(DMO)to ethanol(Et OH)represents a promising avenue for syngas conversion and plays a pivotal role in advancing sustainable energy economies.Nevertheless,designing catalysts with high Et OH yields at low temperatures remains a significant challenge.This study introduces an efficient catalyst featuring a rich SiO2-Ni3Mo3N interface,which achieved a remarkable 97.5%Et OH yield at 210°C and 2 MPa.Impressively,an Et OH yield of 95%was also obtained at 210°C and 1.5 MPa.The research demonstrates that the addition of SiO2fosters the development of a rich SiO2-Ni3Mo3N interface,which enhances the concentration of Lewis acid sites(L-acid)and Brønsted acids sites(B-acid)within the catalyst.This enhancement promotes the adsorption of raw material and intermediate products while increasing H2adsorption,thereby boosting the catalyst's deep hydrogenation capacity.Density functional theory(DFT)simulations indicate that SiO2incorporation modifies the catalyst's metal d-band center through electron transfer,increasing its adsorption capability for raw materials and intermediates and facilitating Et OH production.Consequently,this study achieves high Et OH yields at low temperatures,advances the industrialization process of syngas to Et OH conversion,and offers novel insights into constructing highly active catalytic interfaces for DMO hydrogenation. 展开更多
关键词 Dimethyl oxalate Ethanol SiO2-Ni3Mo3Ninterface Low temperature Acid sites d-band center
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