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Efficient Pt electronic states regulation with hybrid nickel selenide for methanol electrolysis 认领 引用
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作者 Fangfang Ren Wei Qiao +2 位作者 Yubin Kuang Yajing Xie Ligang Feng 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第7期748-753,共6页
Achieving efficient and sustainable hydrogen production from methanol electrolysis requires significant advances in catalyst design.In this study,we present a novel strategy where nickel selenide,featuring distinct cr... Achieving efficient and sustainable hydrogen production from methanol electrolysis requires significant advances in catalyst design.In this study,we present a novel strategy where nickel selenide,featuring distinct crystal phases,anchors on mesoporous hollow carbon spheres to synergistically enhance the activity of Pt for methanol-assisted water splitting reactions.The heterostructured NiSe/NiSe2 nanosheets modulate the electronic structure of Pt,positioning it closer to an optimal thermodynamic state,and creating a highly oxophilic environment that accelerates charge transfer and optimizes the adsorption and desorption of reaction intermediates.The engineered hybrid catalyst exhibits exceptional enhancements in both mass and specific activity for methanol oxidation,significantly outperforming commercial catalysts.In addition,the catalyst exhibits a high electroactive surface area,an abundance of active sites,fast catalytic kinetics,and excellent stability.Notably,a methanol electrolyzer utilizing this catalyst achieves a current density of 10 mA/cm2 at only 0.67 V,a remarkable 1.08 V reduction compared to the voltage required for conventional water electrolysis(1.75 V).This work provides a transformative strategy for designing high-performance electrocatalysts,offering new pathways for more efficient and sustainable hydrogen production through methanol electrolysis. 展开更多
关键词 Nickel selenide Mesoporous hollow carbon spheres Methanol oxidation Hydrogen production Anti-poisoning
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Multiscale Study of a Synergistic System in Carbon-Coated Multimetal-Based Selenides Toward Rapid and Highly Stable Sodium Storage 认领 引用
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作者 Ying Zhu Xiu-Zhen Wang +3 位作者 Lei Dong Yi-Lin Cao Zhang-Cheng Cao Liu-Ting Zhang 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期368-380,共13页
The development of sodium-ion batteries(SIBs)is limited by slow charge transfer kinetics and large material volume changes caused by the large radius of Na+.Leveraging the excellent physicochemical properties and u... The development of sodium-ion batteries(SIBs)is limited by slow charge transfer kinetics and large material volume changes caused by the large radius of Na+.Leveraging the excellent physicochemical properties and unique heterostructures of metal selenides,ultrafine hetero-CuFeSe2-CoSe2nanoparticles are in situ wrapped by polyvinylpyrrolidone-derived carbon(PDC)to successfully synthesize multicomponent composite electrode materials(CuFeSe2-CoSe2@PDC)for SIB anodes.The carboncoated trimetallic selenide heterostructure synergistically enhances electronic/ionic conductivity while maintaining exceptional structural stability,thereby significantly improving the reaction kinetics of active materials.In addition,the exceptionally high pseudocapacitive contribution(97%at 1.0 mV s-1)plays a pivotal role in achieving high reversible specific capacity,excellent cycling stability,and superior rate capability.Benefiting from the multicomponent synergistic effects,the electrode delivers an exceptional specific capacity of 457.88 mAh g-1after 1000 cycles at 2 A g-1,with an ultralow average capacity decay rate of merely 0.0021%per cycle.Density functional theory(DFT)calculations further elucidate that the CuFeSe2-CoSe2heterointerface induces electronic structure reconstruction,and the generated built-in electric field promotes interfacial electrochemical kinetics.Ex situ X-ray diffraction(XRD)further revealed the reversible phase transformation reaction mechanism and confirmed the remarkable structural stability of CuFeSe2-CoSe2@PDC.This offers a feasible strategy to design highperformance electrodes capable of rapid and stable Na+storage. 展开更多
关键词 heterojunction multi-metal selenide nanoparticle pseudocapacitive contribution sodium-ion battery
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In situ growth of lanthanum selenides over graphene oxide sheets as electrocatalyst towards non-enzymatic dual detection of dopamine and ascorbic acid 认领 引用
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作者 Nimra Ahmed Abid Ali +5 位作者 Amel Y.Ahmed Rida Javed Arif Nazir Salih Akyürekli Murat Kaleli Muhammad Ahmad 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第6期1791-1801,I0005,共11页
This study presents the hydrothermal synthesis of a novel lanthanum selenide decorated graphene oxide(LaSe@GO)nanocomposite utilized as electrocatalyst for the non-enzymatic electrochemical sensing of dopamine(DA)and ... This study presents the hydrothermal synthesis of a novel lanthanum selenide decorated graphene oxide(LaSe@GO)nanocomposite utilized as electrocatalyst for the non-enzymatic electrochemical sensing of dopamine(DA)and ascorbic acid(AA).The morphological features,chemical and structural composition of the nanocomposite were characterized using a suite of analytical techniques including scanning electron microscopy(SEM),energy dispersive X-ray electron microscopy(EDX)and X-ray diffraction(XRD)pattern.LaSe@GO modified electrode exhibits exceptional dual sensing performance,achieving low detection limits of 0.04 mmol/L for DA and 0.1 mmol/L for AA and excellent selectivity against common interferents(e.g.,glucose,uric acid and sodium chloride).The sensor demonstrates high sensitivity of 0.55 and 0.25 mA/(mmol/(L·cm2))and broader linear ranges of 0.1-1.3 and 0.2-1.9 mmol/L for the DA and AA,respectively.Boosted performance of the synthesized nanocomposite is associated with the synergistic impact of active sites and enlarged surface area provided by the LaSe na noparticles and GO sheets,respectively.This work may pave the new perspective for the development in electrochemical sensors in term of innovative rare earth metal-based carbon nanocomposites. 展开更多
关键词 Metal selenide Graphene nanocomposite Electrocatalyst Biosensing Rare earth
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Surface-modified neodymium selenide nanoparticles for 5-fluorouracil delivery 认领 引用
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作者 Ujma Ashapak Tamboli Charan Singh Pawar +5 位作者 Varnitha Manikantan Anthonysamy Kulandaisamy Preetha Immaculate Sudhaker Raboni Grace Mano Magdalin Rubella Kennedy N.Rajendra Prasad Israel V.M.V.Enoch 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第3期891-899,I0006,共9页
Neodymium selenide nanoparticles were synthesized and surface-modified usingβ-cyclodextrin-citrate to control agglomeration and achieve the desired particle size.The nanoparticles were characterized by various techni... Neodymium selenide nanoparticles were synthesized and surface-modified usingβ-cyclodextrin-citrate to control agglomeration and achieve the desired particle size.The nanoparticles were characterized by various techniques,including X-ray diffraction,transmission electron microscopy(TEM),and X-ray photoelectron spectroscopy(XPS).XRD results reveal high crystallinity,with characteristic peaks corresponding to Nd2Se3,while TEM analysis shows rod-shaped nanoparticles with an average size of~55 nm.The presence of neodymium and selenium in the+3 oxidation state was confirmed by XPS.Thermogravimetric analysis indicates that theβ-cyclodextrin-citrate coating accounts for approximately30%of the nanoparticle mass and remains stable up to 800℃.The optical properties of the nanoparticles were studied using UV-Vis-NIR spectroscopy,revealing broad absorption in the UV and NIR regions.Magnetic characterization shows soft ferromagnetic behavior,with a saturation magnetization value of0.20 emu/g.The nanoparticles were used for controlled release of 5-fluorouracil,exhibiting a pHsensitive release profile.Studies on MCF-7 cells demonstrate that 5-fluorouracil-loade d nanoparticles enhance cytotoxicity,reactive oxygen species generation,and apoptosis compared to bare nanoparticles.The IC50 value of(13.78±1.24)μg/mL indicates a significantly high cytotoxic activity of the drug-loaded nanoparticles against breast cancer cell lines.These findings suggest that the nanoparticles are a promising drug delivery system for enhanced cancer treatment,combining the controlled drug release with targeted cellular effects. 展开更多
关键词 Neodymium selenide nanoparticles β-cyclodextrin Rare earths Drug delivery 5-Fluorouracil Anticancer activity
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A Green Anodic Electrolysis Strategy for Recovering Copper and Selenium From Cuprous Selenide 认领 引用
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作者 Jihua Li Qihang Zhang +5 位作者 Jie Yu Tianxing Wang Shiwei He Zhongsheng Hua Lingqiao Song Hui Kong 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期682-692,共11页
Selenium,a rare strategic metal,is essential for advanced technologies and biological systems.Cuprous selenide(Cu2Se),a selenium-rich compound found in copper anode slime and a promising thermoelectric material,hol... Selenium,a rare strategic metal,is essential for advanced technologies and biological systems.Cuprous selenide(Cu2Se),a selenium-rich compound found in copper anode slime and a promising thermoelectric material,holds great potential for recovery.In this study,we present the development of a solid-state anodic electrolysis method conducted within a deep eutectic solvent(DES),wherein Cu2Se is electrochemically anodized to metallic selenium at an inert graphite cavity anode.Concurrently,Cu+ions are anodized,released,and subsequently reduced and deposited at the cathode.The electrolysis process reveals progressive phase transitions over time:Cu2Se→Cu2-xSe→CuSe→Se,with Se2-undergoing oxidation via a single twoelectron step.Experimental results demonstrate that,after a 48-h electrolysis process,no discernible shift in chemical signals is observed,further confirming the ChCl-urea DES electrolyte's high chemical stability and potential for recyclability.This method provides a novel environmentally friendly solution for recovering valuable elements from anode slime and obsolete thermoelectric materials,in line with the principles of sustainability and circular economy. 展开更多
关键词 cuprous selenide deep eutectic solvents recovery separation solid-state anodic electrolysis
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Heterojunction interface between bimetallic(Co,Fe)selenides enhanced excellent electron/ion transport kinetics for sodium ion batteries 认领 引用
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作者 Hongyan Zhu Jiuwu Wang +1 位作者 Hong Huang Fen Ran 《Materials Reports(Energy)》 EI 2026年第1期61-73,共13页
Sodium-ion batteries(SIBs)represent a highly promising class of energy storage devices.Enhancing SIBs performance necessitates innovative anode material development to overcome persistent challenges associated with th... Sodium-ion batteries(SIBs)represent a highly promising class of energy storage devices.Enhancing SIBs performance necessitates innovative anode material development to overcome persistent challenges associated with the large ionic radius of Na+,namely significant electrode volumetric expansion and sluggish reaction kinetics.Herein,a macroporous bimetallic(Co,Fe)selenide containing abundant heterojunction interfaces encapsulated into a carbon framework(M-CoSe2/FeSe2@C)is prepared by combining an in-situ crystallization strategy with carbonization-selenization treatment.The structural characterization reveals that the resulting M-CoSe2/FeSe2@C possesses a well-defined porous architecture with internal CoSe2-FeSe2 nanoparticles encapsulated by an external carbon matrix.This configuration not only enhances electrical conductivity but also stabilizes the composite structure throughout sodiation/desodiation cycling.Evaluated as an anode in SIBs,the M-CoSe2/FeSe2@C electrode delivers outstanding cycling stability(retaining 455.0 mA h g−1 at 0.2 A g−1 after 100 cycles)and exceptional rate capability(285.6 mA h g−1 at 10 A g−1).These superior properties are primarily attributed to the high density of interphase boundaries generated by the dual-phase configuration.Combined experimental and theoretical investigations demonstrate that these boundaries,particularly regions of high electron density on the FeSe2 side,kinetically favor Na+adsorption,thereby accelerating sodium storage kinetics.Furthermore,multi-step electrochemical reaction mechanisms within the composite were elucidated through in-situ and ex-situ characterization analyses. 展开更多
关键词 Bimetallic selenides Dual-interface effects Reaction kinetics Sodium-storage mechanisms
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Selenide in 3D structure of polyhedra branching out nanotubes for collaborative facilitated conversion and capturing of polysulfide in Li-S batteries 认领 引用 被引量：4
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作者 Yi-Yang Li Hui Liu +3 位作者 Bo Jin Nan Gao Xing-You Lang Qing Jiang 《Rare Metals》 SCIE EI CAS CSCD 2025年第1期169-184,共16页
Lithium-sulfur batteries(LSBs)are considered as the promising solution to replace conventional lithium-ion batteries due to satisfactory energy density.In recent times,the LSBs field has been found to face some diffic... Lithium-sulfur batteries(LSBs)are considered as the promising solution to replace conventional lithium-ion batteries due to satisfactory energy density.In recent times,the LSBs field has been found to face some difficulties in exploring practical applications in which cycling stability and cycle life are awful owing to the shuttling effect of lithium polysulfides(LiPSs)and low sulfur utilization.In this work,by synthesizing Co3Se4 nanoparticles onto N-doped carbon(NC)polyhedra interconnected with carbon nanotubes(CNTs),NC@Co3Se4/CNTs is proposed as a multifunctional sulfur carrier.The Co3Se4 nanoparticles fleetly catalyze the conversion of LiPSs and availably immobilize LiPSs.Meanwhile,the NC polyhedral skeleton enhances the electronic conductivity of active sulfur,while the CNTs facilitate Li+diffusion and supply a mass of conductive channels.Density-functional theory(DFT)calculations demonstrate the relevant mechanisms.That is to say,the NC@Co3Se4/CNTs benefit from the synergistic effect of Co3Se4 nanoparticles(highly catalytic ability and strong adsorbability for LiPSs)and the special carbonaceous structure,rapidly converting LiPSs and inhibiting the shuttle of LiPSs.Therefore,lithium-sulfur battery assembled with S/NC@Co3Se4/CNTs cathode as well as nitrogen and sulfur co-doped carbon-coated polypropylene(N,S-C/PP)separator possesses a high initial discharge capacity of 1413 mAh·g-1 at 0.12C and persistently circulates for 1000 cycles at 1C with a capacity attenuation rate per cycle of 0.034%.This work provides a realistic idea for the use of transition metal selenide in the field of high-performance LSBs. 展开更多
关键词 Selenide Shutting effect Conversion and capturing Long-term cycling stability Density-functional theory calculation
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Degradation of electrical performance of few-layer tungsten selenide-based transistors 认领 引用 被引量：2
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作者 Ben-Song Wan Run-Hui Zhou +5 位作者 Wen-Kai Yang Qin Zhang Xiang-Yu Liu Zhi-Fu Tan Cao-Feng Pan Zheng-Chun Peng 《Rare Metals》 SCIE EI CAS CSCD 2025年第4期2534-2546,共13页
Semiconducting transition-metal dichalcogenides(TMDs)have garnered significant interest due to their unique structures and properties,positioning them as promising candidates for novel electronic and optoelectronic de... Semiconducting transition-metal dichalcogenides(TMDs)have garnered significant interest due to their unique structures and properties,positioning them as promising candidates for novel electronic and optoelectronic devices.However,the performance of TMDs-based devices is hampered by the suboptimal quality of metal electrodes contacting the atomically thin TMDs layers.Understanding the mechanisms that influence contact quality is crucial for advancing TMDs devices.In this study,we investigated the conductive properties of tungsten selenide(WSe2)-based devices with different film thicknesses.Using the transmission line method,a negative correlation between contact resistance and film thickness in multi-electrode devices was revealed.Additionally,repeatability tests conducted at varied temperatures indicated enhanced device stability with increasing film thickness.Theoretical analysis,supported by thermionic emission theory and thermal simulations,suggests that the degradation in electrical properties is primarily due to the thermal effect at the contact interface.Furthermore,we found that van der Waals contacts could mitigate the thermal effect through a metal transfer method.Our findings elucidate the critical role of contact resistance in the electronic performance of 2D material-based field-effect transistors(FETs),which further expands their potential in the next generation of electronic and optoelectronic devices. 展开更多
关键词 Tungsten selenide Contact resistance Thermal effect Defect state Van der Waals contact
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Polyoxometalate/cobalt selenide functional separator for synergistic polysulfide anchoring and catalysis in lithium-sulfur batteries 认领 引用 被引量：2
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作者 Tang-Suo Li Yi Liu +7 位作者 Xue-Cheng Zhang Lu-Nan Zhang Yu-Chao Wu Xin-Yuan Jiang Qiu-Ping Zhou Cheng Ma Lu-Bin Ni Guo-Wang Diao 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第5期551-564,共14页
The polysulfides shuttle effect,sluggish sulfur redox kinetics and the corrosion of the Li anode have become important factors limiting the commercial application of lithium-sulfur batteries(LSBs).Herein,the polyoxome... The polysulfides shuttle effect,sluggish sulfur redox kinetics and the corrosion of the Li anode have become important factors limiting the commercial application of lithium-sulfur batteries(LSBs).Herein,the polyoxometalate(POM)nanoclusters with high catalytic activity and cobalt selenide with strong polarity are initially complemented to construct a PMo12/CoSe2@NC/CNTs multifunctional separator that can simultaneously solve the above problems.A series of experimental and theoretical results demonstrate that the Keggin-type POM,H3PMo12O40nH2O(PMo12)nanoclusters could function as catalytic centers for sulfur-involved transformations,with the CoSe2nanoparticles serving as adsorption sites for soluble polysulfides.Accordingly,the assembled battery with the PMo12/CoSe2@NC/CNTs modified separator achieves an initial discharge capacity of 1263.79 mA h g-1,maintaining 635.77 mA h g-1,with a capacity decay rate of 0.06%per cycle after 500 cycles at 3C.This work provides a strategic approach for incorporating POM nanoclusters with polar periodic nanomaterials in LSB separators,contributing to the development of multifunctional separator materials,thus promoting the advancement of energy storage systems. 展开更多
关键词 Polyoxometalate Cobalt selenide Multifunctional separator Polysulfides adsorption and catalysis Lithium-sulfur batteries
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Copper selenide enhanced magnetic biochar for elemental mercury removal from coal combustion flue gas 认领 引用 被引量：1
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作者 Lin Zhang Yang Zheng +3 位作者 Guoliang Li Jiajia Gao Yali Tong Tao Yue 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2025年第8期277-289,共13页
With the rapid development of adsorbents for removal of elemental mercury (Hg0) from coal combustion flue gas,the preparation of adsorbents with superior performance,lower cost and environmental friendliness remains a... With the rapid development of adsorbents for removal of elemental mercury (Hg0) from coal combustion flue gas,the preparation of adsorbents with superior performance,lower cost and environmental friendliness remains an important challenge.An incipient wetness impregnation method followed by in-situ selenization was used to load copper selenide(CuSe) onto the surface of optimal magnetic biochar (OMBC).The results showed that CuSe significantly enhanced the Hg0removal performance of the OMBC,and CuSe loading ratio of 10%(10CuSe/OMBC) had the best Hg0removal performance.10CuSe/OMBC maintained its Hg0removal efficiency above 95% for 150 min at 30-150℃,and it had a good resistance to SO2.The equilibrium adsorption capacity of 10CuSe/OMBC could reach up to 8.73 mg/g,which was close to the theoretical value 12.99 mg/g,and the adsorption rate was up to 20.33μg/(g·min) Meanwhile,10CuSe/OMBC had strong magnetism that is not permanently magnetized,which could be separated from desulfurization gypsum and recycled many times.Characterization results demonstrated that Se22-,Cu2+and Oβplayed essential roles in the oxidation of Hg0,and Se22-and Se2-can immobilize Hg2+to HgSe.10CuSe/OMBC has important guiding significance for practical application because of its low cost,high performance and low mercury leaching characteristic to form HgSe. 展开更多
关键词 Coal combustion flue gas Copper selenide Magnetic biochar Adsorption Recyclable
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Flexible and impact-resistant antimony selenide photodetectors enabled by pulsed-laser deposition and their application in imaging beyond human vision 认领 引用
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作者 Yuhang Ma Huanrong Liang +8 位作者 Xinyi Guan Yu Chen Zhaoqiang Zheng Chun Du Churong Ma Wenjing Huang Yichao Zou Jiandong Yao Guowei Yang 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2025年第22期49-58,共10页
Wearable photodetectors have come under the limelight of optoelectronic technologies on account of multiple advantages spanning light weight,easy-portability,excellent bendability,outstanding conformability,etc.Among ... Wearable photodetectors have come under the limelight of optoelectronic technologies on account of multiple advantages spanning light weight,easy-portability,excellent bendability,outstanding conformability,etc.Among diverse candidate materials,low-dimensional van der Waals materials(LDvdWMs)have emerged to be preeminent owing to the dangling-bond-free surface,exceptional carrier mobility,nanoscale dimensionality,and excellent light-harvesting capability.However,to date,the majority of flexible LDvdWM photodetectors have been fabricated through exfoliation-,transfer-,or solution-processing methods,which are plagued by limitations such as low production yield,inadequate photosensitivity,and sluggish response rate.Thus far,constructing LDvdWM photodetectors in situ on flexible substrates remains quite challenging due to the irreconcilable contradiction between the weak robustness of flexible polymer substrates against high temperature and the large thermal budget required for crystallization.This study develops scalable preparation of Sb2Se3nanofilm directly on flexible polyimide substrates by exploiting pulsed-laser deposition(PLD),where highly energetic species can be generated to enable overcoming the reaction barrier for crystallization at a relatively low temperature.The corresponding Sb2Se3photodetectors have exhibited high responsivity of 1.15 A/W,exceptional external quantum efficiency of 269%,and impressive specific detectivity reaching 2.4×1011Jones,coupled with swift switching characteristics.Importantly,excellent durability to repeated bending treatments has been confirmed by the consistent photoresponse over 500 convex/concave bending cycles.Furthermore,the device has showcased strong robustness against extrinsic impinging.In the end,by using Sb2Se3photodetectors as sensing components,wide-band imaging beyond human vision and heart rate monitoring have been realized.This study has underscored the high efficacy of PLD for reconciling the long-standing contradiction between the weak robustness of flexible polymer substrates against high temperature and the substantial thermal energy required for crystallization,opening new opportunities towards next-generation wearable optoelectronic industry. 展开更多
关键词 Pulsed-laser deposition Antimony selenide Flexible photodetectors Wide-band imaging Heart rate monitoring
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Designing trimetallic Ni-Mg-Mn selenide and bio-derived carbon electrodes for wearable semi-solid-state hybrid capacitor applications 认领 引用
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作者 Manchi Nagaraju Jae Su Yu 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2025年第10期5229-5242,共14页
Trimetallic selenides have emerged as a promising electrode for wearable supercapacitors applications,due to their high electrical conductivity,rich redox activity,structural robustness,and porosity.In this report,a t... Trimetallic selenides have emerged as a promising electrode for wearable supercapacitors applications,due to their high electrical conductivity,rich redox activity,structural robustness,and porosity.In this report,a trimetallic nickel–magnesium-manganese selenide(NMMSe)electrode with a well-defined nanosphere morphology was prepared using a low-cost and rapid electrodeposition technique.The electrochemical performance of the NMMSe electrodes was systematically investigated as a positive electrode.The NMMSe electrode prepared with a deposition time of 200 s(denoted as NMMSe-200)revealed a high areal/specific capacity of 439.4μAh cm−2/225.6 mA h g−1 at 4 mA cm–2,along with excellent cycling stability.To further investigate the effect of deposition time on the nanostructure evaluation and electrochemical behavior,additional NMMSe electrodes were synthesized at the growth times of 100 and 300 s.For the negative electrode,activated carbon derived from pistachio shell waste(i.e.,porous activated carbon(PAC))was employed,demonstrating a high areal capacitance of 913.4 mF cm−2 and an excellent surface area of 320.6 m2/g.Finally,a semi-solid-state hybrid capacitor(HC)cell was assembled using NMMSe-200 as the positive(+)electrode and PAC as the negative(-)electrode.The resulting NMMSe//PACickel foam HC cell delivered an impressive areal capacitance of 928.8 mF cm−2 at 2 mA cm–2,a high energy density of 338.5μWh cm–2(56.4 Wh kg−1),and exceptional cycling stability.These results highlight the strong potential of NMMSe-200 electrodes for high-performance,wearable energy storage systems. 展开更多
关键词 Trimetallic selenides Electrodeposition process Nanosphere,Synergistic effect Bio-derived activated carbon
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Adsorption removal of mercury from flue gas by metal selenide:A review 认领 引用 被引量：2
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作者 Yang Zheng Guoliang Li +2 位作者 Yi Xing Wenqing Xu Tao Yue 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2025年第2期420-436,共17页
Mercury(Hg)pollution has been a global concern in recent decades,posing a significant threat to entire ecosystems and human health due to its cumulative toxicity,persistence,and transport in the atmosphere.The intense... Mercury(Hg)pollution has been a global concern in recent decades,posing a significant threat to entire ecosystems and human health due to its cumulative toxicity,persistence,and transport in the atmosphere.The intense interaction between mercury and selenium has opened up a new field for studying mercury removal from industrial flue gas pollutants.Besides the advantages of good Hg0 capture performance and lowsecondary pollution of the mineral selenium compounds,the most noteworthy is the relatively low regeneration temperature,allowing adsorbent regeneration with low energy consumption,thus reducing the utilization cost and enabling recovery of mercury resources.This paper reviews the recent progress of mineral selenium compounds in flue gas mercury removal,introduces in detail the different types ofmineral selenium compounds studied in the field ofmercury removal,reviews the adsorption performance of various mineral selenium compounds adsorbents on mercury and the influence of flue gas components,such as reaction temperature,air velocity,and other factors,and summarizes the adsorption mechanism of different fugitive forms of selenium species.Based on the current research progress,future studies should focus on the economic performance and the performance of different carriers and sizes of adsorbents for the removal of Hg0 and the correlation between the gas-particle flow characteristics and gas phase mass transfer with the performance of Hg0 removal in practical industrial applications.In addition,it remains a challenge to distinguish the oxidation and adsorption of Hg0 quantitatively. 展开更多
关键词 Non-conventional pollutants Adsorbents Metal selenides Flue gas Mercury removal
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Structural tuning and reconstruction of CeO2-coupled nickel selenides for robust water oxidation 认领 引用 被引量：1
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作者 Kailu Guo Jinzhi Jia +5 位作者 Huijiao Wang Ziyu Hao Yinjian Chen Ke Shi Haixia Wu Cailing Xu 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第8期576-580,共5页
Heterogeneous catalysts have attracted wide attention due to their remarkable oxygen evolution reaction(OER)capabilities.Herein,a one-step strategy involving the coupling of NixSeywith CeO2is proposed to concurrent... Heterogeneous catalysts have attracted wide attention due to their remarkable oxygen evolution reaction(OER)capabilities.Herein,a one-step strategy involving the coupling of NixSeywith CeO2is proposed to concurrently construct heterogeneous interfaces,adjust phase structure,and regulate electronic configuration,thereby enhancing OER performance.Thanks to the role of CeO2coupling in reducing the activation-energy and accelerating the reaction kinetics,the heterogeneous NixSey/CeO2catalyst exhibits a low overpotential of 218 mV at 10 mA/cm2and long-term stability(>400 h)in 1.0 mol/L KOH for OER.Moreover,the post-OER characterization reveals that the NixSeymatrix is reconstructed into NiOOH,while the incorporated CeO2nanocrystals self-assemble into larger polycrystalline particles.Theoretical analysis further demonstrates that the optimized electronic states at NiOOH/CeO2interfaces can modulate intermediate chemisorption toward favorable OER kinetics.This study offers fresh perspectives on the synthesis and structure-activity relationship of CeO2-coupled electrocatalysts. 展开更多
关键词 Nickel selenides CeO2 Reconstruction Heterogeneous catalysts Oxygen evolution reaction
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Perovskite and copper indium gallium selenide:A wonderful marriage for tandem photovoltaics with efficiency approaching 30% 认领 引用
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作者 Lulu Wang Jiahong Tang +7 位作者 Fengtao Pei Teng Cheng Boyan Li Weimin Li Siqi Li Cuigu Wu Yan Jiang Qi Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第6期742-763,I0015,共22页
Tandem solar cells(TSCs)represent an attractive technology that can overcome the single-junction Shockdey-Queisser limit.Recently,a tandem structure combining wide-bandgap metal halide perovskite with complementary ba... Tandem solar cells(TSCs)represent an attractive technology that can overcome the single-junction Shockdey-Queisser limit.Recently,a tandem structure combining wide-bandgap metal halide perovskite with complementary bandgap copper indium gallium selenide(CIGS)photovoltaic technology has demonstrated a realistic pathway to achieve the industrialization goal of pushing power conversion efficiency(PCE)approaching 30% at low-cost.In this review,we first pinpoint the unique advantage of perovskite/CIGS tandems with respect to the other mainstream photovoltaic technologies and retrospect the research progress of perovskite/CIGS TSCs from both PCE and stability perspective in the last years.Next,we comprehensively discuss the major advancements in absorbers,functional layers of the individual sub-cell,and the interconnection layer between them in the recent decade.Finally,we outline several essential scientific and engineering challenges that are to be solved toward the development of efficient,long-term stable,and large-area perovskite/CIGS TSCs in the future. 展开更多
关键词 Perovskite Copper indium gallium selenide Tandem Solar cell Stability
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A one-pot stereoselective synthesis of 1,4-dienyl selenides by hydrostannylation-Stille tandem reaction of acetylenic selenides with Bu_3SnH and allylic bromides 认领 引用
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作者 La Mei Yu Wen Yan Hao Ming Zhong Cai 《Chinese Chemical Letters》 SCIE CAS 2008年第9期1047-1050,共4页
1,4-Dienyl selenides can be stereoselectively synthesized in one pot under mild conditions in good yields by the palladiumcatalyzed hydrostannylation of acetylenic selenides,followed by Stille coupling with allylic br... 1,4-Dienyl selenides can be stereoselectively synthesized in one pot under mild conditions in good yields by the palladiumcatalyzed hydrostannylation of acetylenic selenides,followed by Stille coupling with allylic bromides. 展开更多
关键词 Acetylenic selenide Hydrostannylation Stille coupling 1,4-Dienyl selenide Stereoselective synthesis
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A convenient and stereoselective synthesis of (Z)-allyl selenides via Sm/TMSCl system-promoted coupling of Baylis-Hillman adducts with diselenides 认领 引用
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作者 LIU Yun-kui XU Dan-qian +1 位作者 XU Zhen-yuan ZHANG Yong-min 《Journal of Zhejiang University-SCIENCE B》 EI CAS 2006年第5期393-396,共4页
A simple and convenient procedure for stercoselective synthesis of （Z）-allyl selenides has been developed by a one-pot reaction of diselenides with Baylis-Hillman adducts in the presence of samarium metal-trimethyls... A simple and convenient procedure for stercoselective synthesis of （Z）-allyl selenides has been developed by a one-pot reaction of diselenides with Baylis-Hillman adducts in the presence of samarium metal-trimethylsilyl chloride under mild conditions. Presumably, the diselenides are cleaved by Sm/TMSCI system to form selemde anions, which then undergo SN2＇ substitution of Baylis-Hillman adducts to produce the （Z）-allyl selenides. 展开更多
关键词 Stereoselective synthesis （Z）-allyl selenides Diselenides Baylis-Hillman adducts Sm/TMSCI system
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Reduction of Diaryldiselenides by System of Cp_2TiCl_2/Bu^iMgBr/THF and Its Application in Synthesis of Unsymmetrical Diaryl Selenides 认领 引用
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作者 Xin Hua XU Xian HUANG 《Chinese Chemical Letters》 SCIE CAS 2000年第6期473-474,共2页
Reduction of diaryldiselenides by the system of Cp2TiCl2/Bu'MgBr/THF gave the nucleophilic arylselenium complex. They reacted with diaryl iodonium salts to afford unsymmetrical diaryl selenides in high yields.
关键词 Diaryl selenides reduction titanocene dichloride isobutylmagnesium bromide,arylselenium complex of titanocene diaryl iodonium salts unsymmetrical diaryl selenides
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Novel Syntheses of Aryl and Benzyl Selenides Promted by Metallic Zinc in Aqueous Media 认领 引用
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作者 WU Jianyi LU Genliang +1 位作者 MA Zhixian CHEN Jian 《Chemical Research in Chinese Universities》 SCIE EI CAS 2000年第2期182-184,共3页
关键词 Unsymmetrical selenide Zinc Aryl selenides Benzyl seleniders
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Nitrogen-Doped Carbon-Encased Bimetallic Selenide for High-Performance Water Electrolysis 认领 引用 被引量：20
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作者 Junhui Cao Kexin Wang +6 位作者 Jiayi Chen Chaojun Lei Bin Yang Zhongjian Li Lecheng Lei Yang Hou Kostya Ostrikov 《Nano-Micro Letters》 SCIE EI CAS CSCD 2019年第4期185-195,共11页
Demand of highly efficient earth-abundant transition metal-based electrocatalysts to replace noble metal materials for boosting oxygen evolution reaction(OER)is rapidly growing.Herein,an electrochemically exfoliated g... Demand of highly efficient earth-abundant transition metal-based electrocatalysts to replace noble metal materials for boosting oxygen evolution reaction(OER)is rapidly growing.Herein,an electrochemically exfoliated graphite(EG)foil supported bimetallic selenide encased in N-doped carbon(EG/(Co,Ni)Se2-NC)hybrid is developed and synthesized by a vapor-phase hydrothermal strategy and subsequent selenization process.The as-prepared EG/(Co,Ni)Se2-NC hybrid exhibits a core-shell structure where the particle diameter of(Co,Ni)Se2 core is about 70 nm and the thickness of N-doped carbon shell is approximately 5 nm.Benefitting from the synergistic effects between the combination of highly active Co species and improved electron transfer from Ni species,and N-doped carbon,the EG/(Co,Ni)Se2-NC hybrid shows remarkable electrocatalytic activity toward OER with a comparatively low overpotential of 258 mV at an current density of 10 mA cm?2 and a small Tafel slope of 73.3 mV dec?1.The excellent OER catalysis performance of EG/(Co,Ni)Se2-NC hybrid is much better than that of commercial Ir/C(343 mV at 10 mA cm?2 and 98.1 mV dec?1),and even almost the best among all previously reported binary CoNi selenide-based OER electrocatalysts.Furthermore,in situ electrochemical Raman spectroscopy combined with ex situ X-ray photoelectron spectroscopy analysis indicates that the superb OER catalysis activity can be attributed to the highly active Co-OOH species and modified electron transfer process from Ni element. 展开更多
关键词 Core-shell structure Bimetallic selenide N-doped carbon Synergistic effect Oxygen evolution reaction
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