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Building Frameworks With Light:Breakthrough in Precise Synthesis of MOFs Beyond Thermodynamic Constraints 认领 引用
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作者 Yuan Xue Qing Li 《Rare Metals》 SCIE EI CAS CSCD 2026年第6期9-11,共3页
Metal-organic frameworks(MOFs)are formed through the self‐assembly of metal nodes and organic ligands via coordination bonds.Due to their tunable pore structures,abundant active sites,and excellent optoelectronic pro... Metal-organic frameworks(MOFs)are formed through the self‐assembly of metal nodes and organic ligands via coordination bonds.Due to their tunable pore structures,abundant active sites,and excellent optoelectronic properties,MOFs exhibit broad application prospects in heterogeneous catalysis and artificial photosynthesis[1].Figure 1A summarizes the primary synthetic approaches for MOFs.However,current synthesis methods face challenges in achieving precise control over the microscopic framework structure and morphology,limiting the atomic‐level structural refinement and catalytic performance enhancement of MOF‐based photocatalysts[3].Wang's team reported a light‐driven MOFs synthesis strategy in Nature Communications,which precisely regulated growth kinetics through photoenergy,enabling multidimensional atomic‐level structure construction at room temperature.This method bypassed traditional thermodynamic energy barriers and achieves high‐precision control over metal node coordination,topological structure,and organic ligand arrangement,opening new avenues for functionalized MOFs design and efficient photocatalytic applications. 展开更多
关键词 heterogeneous catalysis metal nodes organic ligands coordination bondsdue Precise synthesis artificial photosynthesis figure synthetic approaches synthesis methods
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Simple,rapid,scalable confined synthesis of ultrafine Pt nanoclusters for fuel cells 认领 引用
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作者 Yiming Bai Chengcheng Sang +11 位作者 Zhenwang Luo Renxing Huang Zeping Zhang Yanan Yin Jiapeng Lu Hong Xu Yinghe Huang Weitao Gao Xiaochun Liu Stanford Chidziva Zongqiang Mao Cheng Wang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第4期421-428,I0010,共8页
Small-sized nanoclusters exhibit catalytic activity in electrochemical reactions distinct from the bulk-like properties of nanoparticles 2 nm or larger,yet their surfactant-free synthesis remains a formidable challeng... Small-sized nanoclusters exhibit catalytic activity in electrochemical reactions distinct from the bulk-like properties of nanoparticles 2 nm or larger,yet their surfactant-free synthesis remains a formidable challenge.A scalable microchannel-confined synthesis method enables rapid,controlled formation of 1.12 nm Pt nanoclusters without additional surfactants.Kinetic control achieves a nucleation and growth time of approximately 18.6 s,with heat transfer simulations confirming uniform temperature attainment within 0.5 s.Half-cell and single-cell tests,corroborated by density functional theory(DFT)calculations,demonstrate exceptional performance of these Pt nanoclusters in proton exchange membrane fuel cell(PEMFC),achieving a mass activity 1.9 times that of commercial samples and a rated power density of 1.55 W cm-2.This method can employ multiple capillaries assembled into a capillary bundle to enable parallel experiments,highlighting its scalability and potential to advance hydrogen-electricity conversion technologies. 展开更多
关键词 Confined synthesis Flow synthesis Pt nanocluster PEMFC Oxygen reduction reaction
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Identification of the key regulatory network and genes highly associated with the synthesis of cantharidin in Epicauta chinensis by transcriptome and metabolome analyses 认领 引用 被引量：1
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作者 Xing Tian Shirong Li +5 位作者 Dong Cheng Di Tong Ting Zhou Lei Yi Yalin Zhang Shumin Lü 《Insect Science》 SCIE CAS CSCD 2026年第4期1426-1446,共21页
Cantharidin,as a defensive toxin of blister beetles,has attracted widespread attention in the agricultural and medical fields.However,knowledge about the cantharidin biosynthetic pathway remains limited to date.In thi... Cantharidin,as a defensive toxin of blister beetles,has attracted widespread attention in the agricultural and medical fields.However,knowledge about the cantharidin biosynthetic pathway remains limited to date.In this study,we performed transcriptome and metabolome analyses of fat bodies in Epicauta chinensis to reveal the key genes and metabolites related to cantharidin biosynthesis.The identified differentially expressed genes and differentially accumulated metabolites were primarily enriched in biosynthesis of secondary metabolites and metabolic pathways.Through weighted gene co-expression network analysis,327 genes consistent with the variation of cantharidin content were identified,and cytochrome P450s(CYPs)and phytanoyl-CoA dioxygenase(Phyh)were novel candidate genes due to their high correlation with hub genes involved in cantharidin biosynthesis.Metabolome profiling identified the key cantharidin precursor isopentenyl diphosphate(IPP).The results of integrated analysis revealed that 49 and 11 genes interact with IPP and cantharidin,respectively.Correlation analysis showed that EcCYP6BK33,EcCYP4TTl,and EcPhyh were positively and significantly correlated with cantharidin.Furthermore,knockdown of EcCYP4TT1 and EcPhyh led to significant reductions of cantharidin synthesis;however,RNA interference of EcCYP6BK33 had no significant influence on cantharidin synthesis.These results indicate the importance of fat body in cantharidin biosynthesis.Together,our results also reveal a series of candidate genes for cantharidin biosynthesis,and generated transcriptome and metabolome data as well as a gene regulatory network,which are valuable resources for future characterization of cantharidin biosynthesis in blister beetles. 展开更多
关键词 cantharidin synthesis Epicauta chinensis fat body metabolome RNA interference transcriptome
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Effects of changing assimilate supply on starch synthesis in maize kernels under high temperature stress 认领 引用 被引量：1
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作者 Teng Li Shumei Wang +5 位作者 Qing Liu Xuepeng Zhang Lin Chen Yuanquan Chen Wangsheng Gao Peng Sui 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2026年第2期639-647,共9页
High temperature stress (HT) significantly reduces maize yield by impairing starch accumulation in kernels.However,the mechanism by which HT affects starch synthesis remains controversial-whether through reduced assim... High temperature stress (HT) significantly reduces maize yield by impairing starch accumulation in kernels.However,the mechanism by which HT affects starch synthesis remains controversial-whether through reduced assimilate supply or direct inhibition on kernel metabolism.To clarify these mechanisms,a heat-sensitive maize hybrid,Xianyu 335 (XY),was exposed to 30℃/20℃ (maximum/minimum temperature,control) and 40℃/30℃ for seven consecutive days during the seed setting stage.Synchronous pollination (SP),apical pollination (AP),and shading treatments were applied to manipulate the inherent source–sink ratio in maize plants.Results showed that apical kernel weight decreased by 11.9%under 40℃ in the SP treatment.The 13C content,starch accumulation,and cell-wall invertase (CWIN) activity also declined by 15.9,36.7,and 16.4%,respectively,under HT.In the shading treatment,40℃/30℃ caused even greater reductions in13C content,starch accumulation,and CWIN activity due to diminished assimilate supply.Conversely,in the AP treatment,starch content and CWIN activity increased by 22.0 and 18.5%,respectively,under 40℃/30℃,resulting in kernel weight and 13C content similar to those in SP and shading treatments regardless of temperature.Consistent with apical kernels under AP,HT did not negatively affect middle kernels in either SP or shading treatments,as kernel weight and starch content remained unchanged under HT.Although all kernels were exposed to the same HT or control environment,their responses varied a lot.The impaired starch synthesis in apical kernels under HT was rescued by increasing carbon supply via AP treatment.The contrasting performance among middle kernels,apical kernels under AP,and apical kernels under SP or shading indicates that reduced carbon supply is a critical factor underlying inhibited starch accumulation.Our findings provide a theoretical basis for further understanding kernel abortion under HT. 展开更多
关键词 high temperature stress maize seed setting stage cell wall invertase starch synthesis
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Batch and continuous-flow asymmetric synthesis of d-pantothenic acid precursor enabled by immobilized ketoreductase mutant 认领 引用
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作者 Pan Hu Xiaofan Wu +6 位作者 Yi An Xianjing Zheng Liang Gao Yuan Tao Yajiao Zhang Zedu Huang Fener Chen 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第2期471-476,共6页
We report an immobilized enzyme-catalyzed batch and continuous-flow synthesis of optically pure ethyl(R)-pantothenate((R)-PaOEt),the direct precursor of d-pantothenic acid.Firstly,a ketoreductase mutant designated as ... We report an immobilized enzyme-catalyzed batch and continuous-flow synthesis of optically pure ethyl(R)-pantothenate((R)-PaOEt),the direct precursor of d-pantothenic acid.Firstly,a ketoreductase mutant designated as M2,carrying two-point mutations of F97L and M242F relative to the wild-type SSCR,was constructed by site-directed mutagenesis,exhibited simultaneously improved activity toward ethyl 2′-ketopantothenate(K-PaOEt)and isopropanol,and could effectively catalyze the stereoselective reduction of K-PaOEt to(R)-PaOEt by using isopropanol as the sacrificial co-substrate to regenerate NADPH.After screening six commercially available carriers,an amino resin LXTE-700 was identified as the best solid support for the immobilization of M2 via the glutaraldehyde activation method.Upon optimization of the immobilization process and reaction conditions,the fabricated immobilized enzyme M2@amino resin demonstrated excellent recyclability and reusability,with the complete conversion of K-PaOEt to(R)-PaOEt being still realized after 12 cycles of reuse.Finally,M2@amino resin-catalyzed synthesis of(R)-PaOEt was successfully implemented in continuous-flow,accomplishing a 6.3 times higher space-time yield than that with the batch synthesis(529.2 versus 84 g L-1 d-1).Our developed flow biocatalysis system also features an outstanding operational stability,as evidenced by the 100%conversion rate achieved after 15 consecutive days of operation. 展开更多
关键词 Asymmetric synthesis Continuous flow synthesis Enzyme immobilization Ketoreductase D-Pantothenic acid
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Liquid-Phase Synthesis of Halide Solid Electrolytes for All-Solid-State Batteries Using Organic Solvents 认领 引用 被引量：1
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作者 Hirotada Gamo Mitsunori Kitta Nobuhiko Takeichi 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2026年第3期219-226,共8页
Halide solid electrolytes(SEs)show high ionic conductivity and good compatibility with cathode active materials,providing long-life all-solid-state lithium-ion batteries(ASSLIBs).Liquid-phase synthesis technology is a... Halide solid electrolytes(SEs)show high ionic conductivity and good compatibility with cathode active materials,providing long-life all-solid-state lithium-ion batteries(ASSLIBs).Liquid-phase synthesis technology is a feasible option for the large-scale manufacturing of halide SEs.However,no leading liquid-phase synthesis method for halide SEs has been developed because of a limited understanding of the solvent effect on the formation of halide SEs.Herein,a scalable and universal liquid-phase synthesis method for halide SEs using organic solvents is reported.The Li₃₋ₓYCl₆₋ₓ SEs synthesized via pyridine transform trigonal structure to metastable orthorhombic structure as the Li concentration decreases,forming a highly pure orthorhombic phase with an ionic conductivity of 1.3×10⁻⁴S cm⁻¹ at 25℃ in the composition of x=1.Spectroscopic analysis indicates that pyridine acts as a reducing ligand,stabilizing the orthorhombic Li₂YCl₅by modulating the valence state of yttrium ions.Additionally,the developed synthesis method is extended to the synthesis of bromide SEs with high ionic conductivity.ASSLIBs using LiNi₀.₈Co₀.₁Mn₀.₁O₂-Li₂YCl₅ cathode composites demonstrate good cycling stability for 100 cycles.The liquid-phase synthesis technology reported here opens opportunities for the practical manufacturing of halide-based ASSLIBs. 展开更多
关键词 all-solid-state battery halide solid electrolyte liquid-phase synthesis
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Flexible mm-wave frequency and high-speed arbitrary IQ signal synthesis by a photonic system on chip 认领 引用
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作者 BOWEN ZHU TAO ZHU +5 位作者 YAZHI PI CHUNYANG MA XIAOCHUAN XU ZIZHENG CAO LEI WANG SHAOHUA YU 《Photonics Research》 SCIE EI CAS CSCD 2026年第6期2713-2721,共9页
Photonics-assisted millimeter-wave(mm-wave)and terahertz signal generation overcomes the intrinsic bandwidth limitations of electronic devices by exploiting the ultra-wide bandwidth and coherence of optical carriers.H... Photonics-assisted millimeter-wave(mm-wave)and terahertz signal generation overcomes the intrinsic bandwidth limitations of electronic devices by exploiting the ultra-wide bandwidth and coherence of optical carriers.Here,we demonstrate a silicon photonic chip combined with a reconfigurable optical frequency comb for flexible mm-wave synthesis.Experiments demonstrate the generation and demodulation of a 46 GHz singlefrequency signal,simultaneous 39 GHz and 52 GHz multi-frequency signals,and 41 GHz vector signals.The chip integrates reconfigurable filtering and modulation,enabling precise frequency allocation,multitone combination,and arbitrary IQ vector signal synthesis.These results verify a compact and scalable architecture for agile radio-over-fiber and next generation high-frequency wireless systems. 展开更多
关键词 generation demodulation terahertz signal generation flexible mm wave synthesis optical carriersherewe ghz vector signa high speed arbitrary IQ signal synthesis reconfigurable optical frequency comb silicon photonic chip
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Male testosterone synthesis disorders:oxidative stress pathways,regulatory mechanisms,potential of antioxidant therapy,and botanical medicine prospects 认领 引用
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作者 Hui Wu Min-Tao Jian +5 位作者 Gang Ning Bo-Nan Li A-Jian Peng Hao-Yu Wang Xue Tang Xing Zhou 《Asian Journal of Andrology》 SCIE CAS CSCD 2026年第4期369-381,共13页
Testosterone,one of the most important hormones in men,regulates many physiological and pathological processes.Testosterone biosynthesis mainly occurs in Leydig cells.Oxidative stress(OS)is also commonly observed in L... Testosterone,one of the most important hormones in men,regulates many physiological and pathological processes.Testosterone biosynthesis mainly occurs in Leydig cells.Oxidative stress(OS)is also commonly observed in Leydig cells and is an important factor,leading to decreased testosterone concentrations.This review evaluates male testosterone synthesis disorders from the perspective of OS.OS impairs testosterone synthesis through multiple mechanisms,including modulating the function of the hypothalamic–pituitary–gonadal axis,reducing testicular steroid synthase activity,damaging the mitochondrial function of Leydig cells,inducing endoplasmic reticulum stress,and inhibiting Leydig cell development.A coordinated regulatory network comprising nuclear factor erythroid-2-related factor 2(Nrf2),sirtuin 1(SIRT1),peroxisome proliferator-activated receptor gamma coactivator 1-alpha(PGC-1α),and the glutathione pathway,plays an integral role in modulating testosterone biosynthesis.We summarize the therapeutic potential of antioxidants,especially botanical medicines,in mitigating Leydig cell oxidative injury and restoring testosterone biosynthesis,highlighting their promise as a novel treatment approach.Finally,the therapeutic potential of antioxidants in male disorders of testosterone synthesis,including late-onset hypogonadism,male infertility,and erectile dysfunction,is systematically reviewed and critically analyzed.This review provides a deeper understanding of the mechanisms underpinning testosterone synthesis disorders and may facilitate the development of new clinical treatments. 展开更多
关键词 antioxidant botanical medicine Leydig cells male disease oxidative stress testosterone synthesis
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Polynitromethyl high-energy materials with a tricyclic furoxan-oxadiazole scaffold:Synthesis,stability,and detonation performance 认领 引用
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作者 Qi Xue Lexing Xue +6 位作者 Panfeng Wu Fuqiang Bi Lianjie Zhai Jiarong Zhang Kaidi Yang Junlin Zhang Bozhou Wang 《Defence Technology（防务技术）》 SCIE EI CAS CSCD 2026年第5期138-148,共11页
Polynitromethyl explosives exhibit outstanding detonation performance,yet their application is significantly hindered by safety concerns.Thus,enhancing the stability of polynitromethyl high-energy density materials(HE... Polynitromethyl explosives exhibit outstanding detonation performance,yet their application is significantly hindered by safety concerns.Thus,enhancing the stability of polynitromethyl high-energy density materials(HEDMs)while maintaining high energy levels is of urgent importance.In this study,a novel tricyclic scaffold combining furoxan and 1,2,4-oxadiazole was successfully constructed.Two new HEDMs,3,4-bis(5-fluorodinitromethyl-1,2,4-oxadiazol-3-yl)furoxan(BOFN-4)and 3,4-bis(5-trinitromethyl-1,2,4-oxadiazol-3-yl)furoxan(BOTN-6),were designed and synthesized by introducing a polynitromethyl energetic group for the first time.Experimental tests and theoretical calculations revealed that BOFN-4possesses a higher thermal decomposition temperature(Td peak:193℃)and lower mechanical sensitivity(IS:8 J,FS:252 N)compared to most reported fluorodinitromethyl-functionalized energetic compounds,while also exhibiting high density(ρ:1.92 g·cm-3,296 K).As a zero-oxygen balance explosive,BOTN-6demonstrated 1.3 times the destructive performance of octogen(HMX)in plasma initiation experiments.These results indicate that the introduction of a tricyclic furoxan-isofurazan scaffold is an effective strategy to overcome the thermal stability and sensitivity limitations of polynitromethyl HEDMs,without compromising their energy levels. 展开更多
关键词 Energetic tricyclic scaffolds Furoxan-isofurazan hybridization Polynitromethyl group Synthesis Energetic performance
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Research advancements on the biomimetic generation and stability strategies of theaflavins:from mechanisms,synthesis influencing factors to encapsulation with nanomaterials 认领 引用
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作者 Beiqi Wu Shan Wang +4 位作者 Chaoyang Ma Wenping Lyu Zaixiang Lou Xinlin Wei Hongxin Wang 《Food Science and Human Wellness》 SCIE CAS CSCD 2026年第5期2439-2452,共14页
Theaflavins(TFs),natural orange-red tea pigments formed during tea fermentation and characterized by a benzophenone structure,are known for their multiple potential health benefits.However,their low content in black t... Theaflavins(TFs),natural orange-red tea pigments formed during tea fermentation and characterized by a benzophenone structure,are known for their multiple potential health benefits.However,their low content in black tea and instability pose challenges for the industrial production of high-purity TF products,limiting their broader application.A comprehensive understanding of current methods for synthesizing TFs is crucial for their industrialization.This review highlights the formation mechanism and the biomimetic synthesis of TFs,particularly the enzymatic approach and its various influencing factors.Additionally,recent advances in enhancing the stability of TFs are briefly introduced.Although significant breakthroughs have been realized in the in vitro enzymatic synthesis of TFs,enzymatic methodologies still face substantial challenges in scaling up for commercial production,while the directed synthesis of specific TF monomers remains technically constrained.As a result,exploring targeted synthesis processes for TFs is still a focal point for future research.Furthermore,the search for novel and efficient delivery systems to enhance the bioavailability of TFs is imperative for expanding the utilization and application scope of TFs. 展开更多
关键词 Theaflavins Polyphenol oxidase Biomimetic synthesis Encapsulation Bioavailability
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Green synthesis of hierarchical NaY zeolite for efficient Knoevenagel condensation 认领 引用
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作者 DONG Peng ZHU Lin +2 位作者 LI Tiesen CUI Qingyan YUE Yuanyuan 《燃料化学学报（中英文）》 EI CAS CSCD 北大核心 2026年第7期103-113,共11页
Hierarchical aluminumrich zeolites show promising potential in the Knoevenagel condensation;however,their synthesis is hindered by high preparation cost and energy consumption.To address these issues,a green synthetic... Hierarchical aluminumrich zeolites show promising potential in the Knoevenagel condensation;however,their synthesis is hindered by high preparation cost and energy consumption.To address these issues,a green synthetic route has been developed for preparing hierarchical NaY zeolite using submolten salt(SMS)activated perlite as the sole source of silicon and aluminum.Comprehensive characterization shows that the NaY zeolite synthesized from SMS activated perlite exhibits high purity and crystallinity.This aluminum-rich NaY zeolite,with a framework SiO2/Al2O3 molar ratio of approximately 4.2,features intercrystalline mesopores,a large external surface and abundant basic sites.Investigation into the crystallization process of the hierarchical NaY zeolite indicates that during the initial stage,small crystals assemble and grow on the surface of SMS activated perlite.As crystallization proceeds,the zeolite crystals rapidly grow and aggregate around the activated sample,ultimately forming a crystal-packed morphology.In the Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate,the synthesized hierarchical NaY zeolite demonstrates higher benzaldehyde conversion compared to conventional counterparts. 展开更多
关键词 NaY zeolite hierarchical pore perlite green synthesis Knoevenagel condensation
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Benzyl sulfide, sulfoxide and sulfinate metabolites from Gastrodia elata and their synthesis, derivatization and anti-inflammatory activity 认领 引用
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作者 Chengbo Xu Lei Wang +7 位作者 Xue Zhou Shuai Shao Chengjuan Chen Xiaoqiang Lei Tiantai Zhang Jiachen Zi Jiangong Shi Qinglan Guo 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2026年第3期365-372,共8页
Five novel sulfur-containing benzyl metabolites, designated as gastrabenzylsulfoxides A and B(1 and 2), gastrabenzylsulfinate A(3) and gastrabenzylsulfides A and B(4 and 5), along with four known compounds(6-9), were ... Five novel sulfur-containing benzyl metabolites, designated as gastrabenzylsulfoxides A and B(1 and 2), gastrabenzylsulfinate A(3) and gastrabenzylsulfides A and B(4 and 5), along with four known compounds(6-9), were isolated from the aqueous extracts of Gastrodia elata.Compounds 1 and 4 are 4-hydroxy-3-(4′-hydroxybenzyl)benzyl-substituted sulfoxide and sulfide, respectively, which are unprecedented in natural products. Compound 3 represents a rare sulfinate. Several isolates and their sulfone and disulfide analogs(10-13) were synthesized to evaluate their anti-inflammatory activity. Notably, the synthesized sulfone 10 demonstrated significant alleviation of symptoms in multiple in vivo inflammatory models. 展开更多
关键词 Gastrodia elata Sulfur-bearing benzyl metabolites Synthesis Anti-inflammatory activity
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Kilogram-scale Flux Synthesis of Olefin-linked Amorphous Conjugated Microporous Polymers toward C2H2/CO2Separation 认领 引用
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作者 Yu-Shu Zhang Kai-Yuan Wang +6 位作者 Li-Qin Hao Ji-Xian Wang Meng-Jin Wang Yao Chen Peng Cheng Xia Li Zhen-Jie Zhang 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第5期1364-1372,I0010,共9页
Conjugated microporous polymers(CMPs)have demonstrated significant potential for gas separation due to their permanent microporosity,high adsorption capacity,and exceptional chemical robustness.However,the scalable,co... Conjugated microporous polymers(CMPs)have demonstrated significant potential for gas separation due to their permanent microporosity,high adsorption capacity,and exceptional chemical robustness.However,the scalable,cost-effective and environmentally friendly synthesis of CMPs as an alternative to energy-intensive traditional solvothermal methods remains underexplored.Herein,we present a solvent-free,flux synthesis method for constructing olefin-linked amorphous CMPs(NKCMP-1 and NKCMP-2)through Knoevenagel condensation of 2,3,5,6-tetramethylpyrazine with linear aromatic aldehydes.This method surpasses ionothermal and mechanochemical routes in terms of scalability and product uniformity.Notably,NKCMP-1 can be synthesized on a kilogram scale(0.54 kg)while maintaining structural integrity,high surface area and a uniform microporous architecture.Both NKCMP-1 and NKCMP-2 exhibit outstanding C2H2/CO2selectivity and cyclic stability under ambient conditions,as confirmed by dynamic breakthrough experiments.These features make the developed CMPs highly promising for real-world industrial gas purification applications. 展开更多
关键词 Kilogram-scale fabrication Flux synthesis Conjugated microporous polymers Gas separation
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Cathode catalyst-assisted microbial electrosynthesis of acetate from carbon dioxide:promising material selection 认领 引用
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作者 Rujing Lin Xiaomei Zheng +3 位作者 Huai Zhang Yingying He Mingxian Liu Li Xie 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第2期394-404,共11页
As the core of cathode materials,sensitive metals play important roles in the optimization of acetate production from carbon dioxide(CO2)in microbial electrochemical system(MES).In this work,iron(Fe),copper(Cu),and... As the core of cathode materials,sensitive metals play important roles in the optimization of acetate production from carbon dioxide(CO2)in microbial electrochemical system(MES).In this work,iron(Fe),copper(Cu),and nickel(Ni)as sensitive metal cathode materials were evaluated for CO2 conversion in MES.The MES with Feelectrode as a promising electrode material demonstrated a superior CO2 reduction performance with a maximum acetate accumulation of 417.9±39.2 mg/L,which was 1.5 and 1.7 folds higher than that in the Ni-electrode and Cu-electrode groups,respectively.Furthermore,an outstanding electron recovery efficiency of 67.7%was shown in the Fe-electrode group.The electron transfer between electrode-suspended sludge was systematically cross-evaluated by the electrochemical behavior and extracellular polymeric substances.The Fe-electrode group had the highest electron transfer rate with 0.194 s-1(kapp),which was 17.6 and 21.5 times higher than that of the Cu-and Ni-electrode groups,respectively.Fe-electrode was beneficial for reducing electrochemical impedance between the electrode and suspended sludge.Additionally,redox substances in extracellular polymeric substances of the Fe-electrode group were increased,implying more favorable electron transport dynamics.Simultaneously,enrichments of functional bacteria Acetoanerobium and increased key enzymes involved in the carbonyl pathway of the Fe-electrode group were observed,which also promoted CO2 conversion in MES.This study provides a perspective on evaluating the promising sensitive metal electrode material for the process of CO2 valorization in MES and offers a reference for the subsequent electrode modification. 展开更多
关键词 Acetate synthesis Microbial electrochemical system Carbon dioxide fixation Sensitive metal selection Cathode material
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Total synthesis of ADPr-ATP and evaluation of the antiviral activity of pRib-AMP prodrug 认领 引用
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作者 Tiantian Zhang Hanbo Liu +1 位作者 Junbiao Chang Yonggang Meng 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第2期419-423,共5页
ADPr-ATP is a natural nucleotide with three sugar rings and five pentavalent phosphorus,and can be produced through TIR-catalyzed ADP-ribosylation reactions for plant immunity.Here,we report the first total synthesis ... ADPr-ATP is a natural nucleotide with three sugar rings and five pentavalent phosphorus,and can be produced through TIR-catalyzed ADP-ribosylation reactions for plant immunity.Here,we report the first total synthesis of ADPr-ATP(1)with a total yield of 6.4%through 14 steps,featuring late-stage P(V)−N activation reaction of pyrophosphate(4)and 5′-phosphoromorpholidate(25).The protected adenosine 5′-phosphoromorpholidate(24)was prepared on the basis of a scalable to adenosine 5′′-monophosphate(2).The construction of P(V)−N bond in phosphoramidate is esteemed as a critical step as they are sufficiently stable in deprotection reactions.The chemical synthesis of ADPr-ATP can offer an appealing alternative to traditional enzymatic synthesis and fractionation methods.Furthermore,the pRib-AMP and its prodrug are also synthesized to evaluate cytotoxicity and anti-influenza activity in vitro. 展开更多
关键词 ADPr-ATP Nucleotide Immunity Total synthesis Anti-influenza
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Synthesis of ZSM-5 molecular sieve from coal gasification fine slag and its adsorption mechanisms for Pb2+in aqueous solution 认领 引用
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作者 JIAO Facun YU Jie +6 位作者 GAO Shengtao ZHANG Yuanchun LIU Tao MAO Lirui WU Chengli LI Hanxu DONG Zhongbing 《燃料化学学报（中英文）》 EI CAS CSCD 北大核心 2026年第6期195-208,共14页
Coal gasification fine slag(CGFS)is a solid waste generated from entrained-flow coal gasification,characterized by fine particles and rich in silicon and aluminum elements.Using CGFS as a raw material for the preparat... Coal gasification fine slag(CGFS)is a solid waste generated from entrained-flow coal gasification,characterized by fine particles and rich in silicon and aluminum elements.Using CGFS as a raw material for the preparation of ZSM-5 molecular sieves enables the high-value utilization of coal-based solid waste,offering significant economic and environmental benefits.This study proposes a simple and economical hydrothermal synthesis process for ZSM-5 using CGFS as the raw material.In this process,impurities in CGFS were first removed by acid washing,which facilitated the subsequent alkaline extraction of silicon and aluminum species.The extracted Si-Al precursors were then converted into ZSM-5 via hydrothermal crystallization at 170℃for 48 h,yielding a product with a high specific surface area of 358 m2/g.Adsorption experiments demonstrated that the synthesized ZSM-5 exhibited excellent adsorption performance for Pb2+in aqueous solutions.At 25℃,the removal efficiency for a 50 mg/L Pb2+solution reached 83.7%,with an adsorption capacity of 104.625 mg/g under optimized conditions.The adsorption process is mainly governed by chemisorption mechanisms,including surface complexation,precipitation,and ion exchange.The synthesized ZSM-5 shows promising potential for application in the treatment of lead-containing wastewater. 展开更多
关键词 coal gasification fine slag ZSM-5 synthesis and performance adsorption mechanisms Pb2+
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Advances in metal oxide catalysts for efficient VOCs oxidation:Synthesis strategy and catalytic mechanism 认领 引用
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作者 Fan Dang Chunli Ai +5 位作者 Chi Ma Zeyu Jiang Jicheng Liu Mingjiao Tian Mingzhuo Zhang Chi He 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2026年第2期97-123,共27页
The severe hazard of volatile organic compounds(VOCs)makes their decomposition technology a key topic research.Catalytic oxidation is an efficient and environmentally friendly strategy for removing VOCs.The metal oxid... The severe hazard of volatile organic compounds(VOCs)makes their decomposition technology a key topic research.Catalytic oxidation is an efficient and environmentally friendly strategy for removing VOCs.The metal oxide catalysts dominate VOCs oxidation reactions,owing to their cost-effectiveness,robust redox properties,tunable crystal structures,and excellent operational stability.Thus,designing high-performance metal oxide catalysts is important.This review systematically summarized the recent advances in constructing highly efficient active metal oxides,with emphasis on representative preparation method,the structure performance relationship,and the reaction mechanism of different types VOCs.Finally,the remaining challenges for creating metal oxide catalysts in practical applications are discussed. 展开更多
关键词 Metal oxide catalysts Volatile organic compounds oxidation Synthesis strategy Structure modulation Reaction mechanism
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Enantioconvergent reductive amidation of benzyl ammonium salts for synthesis of α-chiral amides 认领 引用
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作者 Saima Perveen Xicheng Wang +6 位作者 Tao Li Linghua Wang Shuai Zhang Yizhao Ouyang Xue Zhao Liang Xu Pengfei Li 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第1期300-305,共6页
α-Chiral amides are common in pharmaceuticals,agrochemicals,natural products,and peptides,prompting the need for new synthetic methods.Here,we introduce a nickel-catalyzed asymmetric reductive amidation method to syn... α-Chiral amides are common in pharmaceuticals,agrochemicals,natural products,and peptides,prompting the need for new synthetic methods.Here,we introduce a nickel-catalyzed asymmetric reductive amidation method to synthesizeα-chiral amides from benzyl ammonium salts and isocyanates.The key to success is using a chiral 2,2-bipyridine ligand(-)-Ph-SBpy,enabling high yield(up to 95%)and enantiomeric ratio(up to 98:2 er)under mild conditions.Addition of phenol prevents isocyanate polymerization by reversibly forming a carbamate intermediate,enhancing selectivity and efficiency.The synthetic utility is showcased through transformations of the enantioenriched amides,and the mechanism and enantioselectivity are supported by experimental and computational studies. 展开更多
关键词 α-Chiral amide Amidation Asymmetric synthesis Bipyridine ligand Nickel catalysis
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A versatile route to tailor-made catalysts via molten salt-assisted synthesis for catalytic conversion 认领 引用
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作者 Shasha Gao Jinteng Guan +4 位作者 Rui Zhang Feifei Mao Dong Guo Chaolong Wang Gonglei Shao 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第5期668-697,I0016,共30页
Amidst global energy transition and carbon neutrality initiatives,the development of high-performance catalysts to address energy and environmental challenges has become imperative.Molten salt-assisted synthesis(MSAS)... Amidst global energy transition and carbon neutrality initiatives,the development of high-performance catalysts to address energy and environmental challenges has become imperative.Molten salt-assisted synthesis(MSAS)offers a novel and robust route for catalyst preparation.It overcomes the critical drawbacks of conventional methods,such as limited mass transfer in solid-phase synthesis and constrained thermodynamics in wet-chemical processes.By harnessing high-temperature ion-mediated effects and dynamic interfacial regulation mechanisms,MSAS establishes a pragmatic paradigm for the precise synthesis of catalysts.In this review,we first outline the physicochemical properties of diverse molten salt systems,examine the molten salt system selection criteria and the theoretical mechanism basis for synthesizing catalysts via MSAS.Then recent advances in various MSAS-derived catalysts and their applications in electrochemical energy conversion are systematically reviewed.Finally,current challenges and future prospects for MSAS in catalyst design are comprehensively discussed.The systematic assessments and insights presented herein not only deepen the understanding of MSAS,but also bridge theoretical knowledge and practical design for novel,high-performance electrocatalysts. 展开更多
关键词 Molten salt-assisted synthesis Liquid-phase microenvironment Polarization field effects Tailoring catalyst Electrocatalytic applications
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Recent trend in rare earth electrocatalysts for ambient ammonia synthesis: Challenges and perspectives 认领 引用
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作者 Muhammad Asim Mushtaq Waseem Raza +9 位作者 Munir Ahmad Anuj Kumar Andleeb Mehmood Muhammad Arif Ghulam Yasin Mohammad Tabish Saira Ajmal Muhammad Ahmad Muhammad Sufyan Javed Dongpeng Yan 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第2期519-537,共19页
The electrocatalytic nitrogen reduction reaction(NRR) has emerged as a viable substitute to the energyintensive Haber-Bosch process for ambient ammonia(NH3) synthesis, but its practical implementation is limited by... The electrocatalytic nitrogen reduction reaction(NRR) has emerged as a viable substitute to the energyintensive Haber-Bosch process for ambient ammonia(NH3) synthesis, but its practical implementation is limited by low NH3 yields and inadequate Faradaic efficiency under ambient circumstances. Recent advancements indicate that rare-earth(RE) elements, which contain multiple oxidation states, significant redox flexibility, a tendency to create oxygen vacancies, and multiple accessible active sites, make them suitable candidates for effective electrocatalytic NRR. Electrocatalysts are critical prerequisites for improving electrochemical efficiency and maximizing product yield. A comprehensive analysis of rare earth-based materials in influencing the electronic characteristics of NRR catalysts, alongside the structure–performance correlation in electrocatalytic activities, is summarized systematically. This review offers a timely and thorough overview of the advancements in the utilization of RE-based microanomaterials and presents plausible forecasts for the future electrocatalytic NRR. Finally, challenges,perspectives, rational design, and development of highly efficient RE-based catalysts are articulated with particular focus on diverse metal-based electrocatalysts for N2 fixation. 展开更多
关键词 Ammonia Ambient conditions Catalytic mechanism Nitrogen reduction reactions Rare-earth electrocatalysis Synthesis methods
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