期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到886篇文章
< 1 2 … 45 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Metal diborides as robust and highly stable electrodes for efficient electrocatalytic reduction of CO2 to CO in ionic liquid-based electrolytes 认领 引用
1
作者 Yidan Mao Bingyu Li +10 位作者 Shuailing Ma Siwen Cui Zihan Zhang Pinwen Zhu Kongsheng Qi Xiaodong Li Weiwei Dong Wei Luo Rajeev Ahuja Dexin Yang Tian Cui 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第4期289-295,共7页
The electrocatalytic reduction of carbon dioxide(CO2)into fuels holds significant promise for addressing energy and environmental challenges,albeit hindered by constraints in conversion efficiency,production rates,... The electrocatalytic reduction of carbon dioxide(CO2)into fuels holds significant promise for addressing energy and environmental challenges,albeit hindered by constraints in conversion efficiency,production rates,and electrode stability.Metal diborides are considered as promising electrocatalysts that may demonstrate superior CO2 electroreduction performance due to their distinctive electronic properties.Herein,a series of novel bulk metal diborides,encompassing transition metals from groupⅣB to groupⅦB elements,were fabricated using a high pressure-high temperature technique,which were directly utilized as self-supporting electrodes for electrocatalytic reduction of CO2.The zirconium diboride(ZrB2)electrode stood out in metal diborides with superior electrocatalytic activity in generating carbon monoxide(CO),achieving a Faradaic efficiency of 92.2%at-2.2 V vs.Ag/Ag+in ionic liquid-based electrolytes.Impressively,the ZrB2 electrode demonstrated stable catalysis of CO2 reduction to CO over a nearly 60-h electrolysis period.Furthermore,the ZrB2 electrode and ionic liquid-based electrolytes could synergistically catalyze the reduction of CO2 to CO.Experimental results and density functional theory calculations support the notion that exposed metal sites on the ZrB2(001)surface could enhance*CO desorption and restrain the hydrogen evolution reaction,thereby facilitating the conversion of CO2 into CO. 展开更多
关键词 Metal diborides Electrocatalytic reduction of CO2 Ionic liquids CO Self-supporting electrodes
暂未订购 下载PDF
Photoelectrochemical degradation of Methylene Blue with β-PbO_2 electrodes driven by visible light irradiation 认领 引用 被引量：4
2
作者 Guoting Li HoYin Yip +3 位作者 Kin Hang Wong Chun Hu Jiuhui Qu Po Keung Wong 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2011年第6期998-1003,共6页
β-PbO2 electrodes were prepared by electro-deposition and characterized by scanning electron microscopy,X-ray diffraction,X-ray photoelectron spectroscopy,and linear sweep voltammetry.We confirmed pure β-PbO2 crysta... β-PbO2 electrodes were prepared by electro-deposition and characterized by scanning electron microscopy,X-ray diffraction,X-ray photoelectron spectroscopy,and linear sweep voltammetry.We confirmed pure β-PbO2 crystals were on the electrode and it had a high oxygen evolution potential.The photoactivity and photoelectrochemical（PEC） properties of the β-PbO2 electrode were investigated under visible light irradiation（λ 〉 420 nm） for the decolorization of Methylene Blue.Pseudo first-order kinetics parameter（Kapp） for dye decolorization using the β-PbO2 electrode achieved 6.71×10-4 min-1 under visible light irradiation,which indicated its excellent visible light-induced photoactivity.The Kapp of the PEC process was as much as 1.41×10-3 min-1 and was 1.71 times that of visible light irradiation or electrolysis even in the presence of the β-PbO2 electrode.A significant synergetic effect was observed in the PEC system.We also employed TiO2 modified β-PbO2 electrodes in this test,which revealed that the TiO2 immobilized on the β-PbO2 electrode inhibited the visible light-induced PEC efficiency despite the amount of TiO2 used for electrode preparation.The β-PbO2 electrode was also superior to the dimensionally stable anode（Ti/Ru0.3Ti0.7O2） in visible light-induced photoactivity and PEC efficiency. 展开更多
关键词 photocatalysis photoelectrochemical process visible light β-PbO2 electrode
暂未订购 下载PDF
Rapid Outgassing of Hydrophilic TiO2 Electrodes Achieves Long-Term Stability of Anion Exchange Membrane Water Electrolyzers 认领 引用
3
作者 Shajahan Shaik Jeonghyeon Kim +8 位作者 Mrinal Kanti Kabiraz Faraz Aziz Joon Yong Park Bhargavi Rani Anne Mengfan Li Hongwen Huang Ki Min Nam Daeseong Jo Sang-Il Choi 《Nano-Micro Letters》 SCIE EI CAS CSCD 2025年第8期219-236,共18页
The state-of-the-art anion-exchange membrane water electrolyzers(AEMWEs)require highly stable electrodes for prolonged operation.The stability of the electrode is closely linked to the effective evacuation of H2 or... The state-of-the-art anion-exchange membrane water electrolyzers(AEMWEs)require highly stable electrodes for prolonged operation.The stability of the electrode is closely linked to the effective evacuation of H2 or O2 gas generated from electrode surface during the electrolysis.In this study,we prepared a superhydrophilic electrode by depositing porous nickel–iron nanoparticles on annealed TiO2 nanotubes(NiFe/ATNT)for rapid outgassing of such nonpolar gases.The super-hydrophilic NiFe/ATNT electrode exhibited an overpotential of 235 mV at 10 mA cm−2 for oxygen evolution reaction in 1.0 M KOH solution,and was utilized as the anode in the AEMWE to achieve a current density of 1.67 A cm−2 at 1.80 V.In addition,the AEMWE with NiFe/ATNT electrode,which enables effective outgassing,showed record stability for 1500 h at 0.50 A cm−2 under harsh temperature conditions of 80±3℃. 展开更多
关键词 TiO2nanotubes NiFe Super-hydrophilic electrode Oxygen evolution reaction Anion-exchange membrane water electrolyzer
暂未订购 下载PDF
Impact of oxide bottom electrodes on resistive switching behavior associated with oxygen vacancy dynamics in Al/ZrO2/BE ReRAM structures 认领 引用
4
作者 Wei Zhang Zhen Guo +2 位作者 Luobin Qiu Jun Liu Fangren Hu 《Chinese Physics B》 SCIE EI CAS CSCD 2025年第12期423-430,共8页
This study investigates the impact of oxide bottom electrode(BE)material and orientation on the resistive switching(RS)characteristics of Al/ZrO2-based ReRAM devices.Devices with different oxide BEs,including(400)-... This study investigates the impact of oxide bottom electrode(BE)material and orientation on the resistive switching(RS)characteristics of Al/ZrO2-based ReRAM devices.Devices with different oxide BEs,including(400)-and(222)-oriented ITO BEs deposited under pure argon and argon–oxygen(20%O2)sputtering atmospheres,as well as SrRuO3(SRO),show distinct RS behaviors.The Al/ZrO2/(400)-ITO and Al/ZrO2/SRO devices demonstrate stable bipolar RS performance,with(400)-ITO enabling an abrupt reset process,a wider memory window(>104),and superior stability,while SRO devices exhibit gradual reset transitions with lower power consumption.Furthermore,the crystallographic orientation control applied to ITO BE significantly affects the VO dynamics and RS performance,with(222)-ITO devices exhibiting irreversible RS behavior.It is irrefutable that BE material and its orientation can strongly influence RS performance by modulating the VO dynamics,electric field distribution,and conductive filament behavior.These findings underscore the importance of BE properties in optimizing ReRAM performance and provide valuable guidance for the development of high-efficiency memory devices. 展开更多
关键词 ZrO2film resistive switching mechanism electrode material and crystallographic orientation oxygen vacancy dynamics
暂未订购 下载PDF
Cryoporometry for short T2 samples:A T1 filter method applied to battery electrode characterization 认领 引用
5
作者 Marc Fleury Thibaud Chevalier +2 位作者 Benjamin Nicot Quentin Denoyelle Julien Bernard 《Magnetic Resonance Letters》 EI CAS 2025年第3期10-22,共13页
The pore size distribution is often an important parameter for transport processes in porous media.Cryoporometry experiments can provide such data in the meso and macropore size up to 1 mm providing the sample tempera... The pore size distribution is often an important parameter for transport processes in porous media.Cryoporometry experiments can provide such data in the meso and macropore size up to 1 mm providing the sample temperature is finely controlled.We use a Peltier based system inserted directly into the NMR probe to control the temperature within 0.05℃and impose temperature ramps down to 0.002℃/min,necessary to characterize the largest pore sizes.The pore size information in the macropore range cannot be obtained from gas adsorption techniques while mercury injection is questionable for the material considered here.For porous materials made of paramagnetic minerals such as lithium-iron phosphate(LiFePO4,LFP)or nickel-manganese-cobalt oxides(NMC)and saturated with octamethylcyclotetrasiloxane(OMCTS),the T2relaxation times are very short such as protons from the liquid and frozen phases cannot be separated.Hence the usual cryoporometry experiment cannot be performed.Instead,we propose to use the T1contrast to separate these phases.The method is studied in detail along with some temperature effects linked with the T1variation of the bulk frozen OMCTS.We show an example on two cathode materials part of industrial battery product. 展开更多
关键词 Low field NMR Cryoporometry Short T2relaxation times Liquidesolid separation Battery electrode Pore size distribution
暂未订购 下载PDF
Solid-solution RuxCu1-xO2 nanocrystals:A promising negative electrode for high-energy-density aqueous hybrid supercapacitors 认领 引用
6
作者 Xuting Li Xiaotang Meng +3 位作者 Qian Zhang Jinfeng Sun Linrui Hou Changzhou Yuan 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2025年第7期10-19,共10页
The low specific capacitances(SCs)of traditional carbonaceous negative electrodes significantly limit the enhancement in energy density of aqueous hybrid supercapacitors(AHCs).It is still hugely challengeable to explo... The low specific capacitances(SCs)of traditional carbonaceous negative electrodes significantly limit the enhancement in energy density of aqueous hybrid supercapacitors(AHCs).It is still hugely challengeable to explore a candidate with large SCs,which can stably operate in the negative potential region mean-while.For this propose,we design and fabricate solid-solution RuxCu1-xO2 nanocrystals(NCs),which exhibit competitive SCs and electrochemical stability within the potential range from-0.9 V to 0.0 V in the aqueous KOH electrolyte.The incorporation of Cu enhances the electrochemical utilization of RuO2,reaction kinetics,electronic conductivity,and hydrogen evolution overpotentials,which are all highly dependent upon the added contents of Cu species.The optimized Ru0.8Cu0.2O2(RuCu82)electrode of a high mass loading of 5 mg cm-2 reveals the best electrochemical capacitances in terms of reversible SCs and capacitance degradation at room temperature and-20℃.Furthermore,the reversible K+-(de)intercalation induced pseudocapacitance is proposed for electrochemical charge storage process of RuCu82.In particu-lar,remarkable specific energy of 59.1 Wh kg-1 at 400 W kg-1 and excellent cycling stability are achieved in the assembled NiCoO2//RuCu82 AHCs.Our contribution here presents a new promising negative elec-trode platform with high SCs and electrochemical stability for next-generation AHCs. 展开更多
关键词 Aqueous hybrid supercapacitors Negative electrodes Solid-solution Ru0.8Cu0.2O2 Faradaic redox reaction High energy density
暂未订购 下载PDF
Accurate cadmium(Ⅱ)detection with single crystalline α-Fe2O3 nano-hexagonal modified screen-printed carbon electrode 认领 引用
7
作者 Selvakumar Palanisamy Murugan Velmurugan +4 位作者 G.Bharath Matteo Chiesa Rajesh Madhu Fedor V Kusmartsev Sridharan Balu 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2025年第8期635-644,共10页
Even in small concentrations,toxic metals like lead,cadmium,and mercury are dangerous to the environment and human health.Environmental monitoring depends on precisely identifying these heavy metals,particularly cadmi... Even in small concentrations,toxic metals like lead,cadmium,and mercury are dangerous to the environment and human health.Environmental monitoring depends on precisely identifying these heavy metals,particularly cadmium ions(Cd(Ⅱ)).In this study,we present a novel screen-printed carbon electrode(SPCE)modified with single crystallineα-Fe2O3nano-hexagons that functions as a sensor for detecting Cd(Ⅱ).The performance of the fabricated sensor was thoroughly assessed and compared with unmodified SPCE using the voltammetric method.The crystalline structure of the synthesizedα-Fe2O3nano-hexagons was confirmed through XRD,and surface analysis revealed an average diameter and thickness of 86 nm and 9 nm,respectively.Theα-Fe2O3modified SPCE yields a 7-fold enhanced response(at pH 5.0 vs.Ag/AgCl)to Cd(Ⅱ)than bare SPCE.The modified electrode effectively detects Cd(Ⅱ)with a linear response range of up to 333.0μmol/L and a detection limit of 0.65 nmol/L under ideal circumstances.This newly fabricated sensor offers significant potential for environmental monitoring applications by providing outstanding practicality,anti-interference ability,and repeatability for detecting Cd(Ⅱ)in water samples. 展开更多
关键词 α-Fe2O3nano-hexagons Screen-Printed Carbon electrode Electroanalysis Heavy metal ions detection Cadmium ion sensor Differential pulse voltammetry
暂未订购 下载PDF
Influence of nano-CeO_2 on coating structure and properties of electrodeposited Al/α-PbO_2/β-PbO_2 认领 引用 被引量：9
8
作者 陈阵 余强 +2 位作者 廖登辉 郭忠诚 武剑 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第5期1382-1389,共8页
Al/α-PbO2/β-PbO2 composite electrodes doped with rare earth oxide （CeO2） were prepared by anodic oxidation method investigate the influence of nano-CeO2 dopants on the properties of Al/α-PbO2/β-PbO2-CeO2 electro... Al/α-PbO2/β-PbO2 composite electrodes doped with rare earth oxide （CeO2） were prepared by anodic oxidation method investigate the influence of nano-CeO2 dopants on the properties of Al/α-PbO2/β-PbO2-CeO2 electrodes and the impact of α-PbO2 as the intermediate layer. The results show that using α-PbO2 as the intermediate layer will benefit the crystallization of β-PbO2 and β-PbO2 is more suitable as the surface layer than α-PbO2. CeO2 dopants change the crystallite size and crystal structure, enhance the catalytic activity, and even change the deposition mechanism of PbO2. The doping of CeO2 in the PbO2 electrodes can enhance the electro-catalytic activity, which is helpful for oxygen evolution, and therefore reduce the cell voltage. 展开更多
关键词 rare earth CeO2 composite electrode material α-PbO2 β-PbO2 cell voltage inert anode
暂未订购 下载PDF
Effects of current density on preparation and performance of Al/conductive coating/α-PbO_2-Ce O_2-TiO_2/β-Pb O_2-MnO_2-WC-ZrO_2 composite electrode materials 认领 引用 被引量：6
9
作者 杨海涛 陈步明 +5 位作者 郭忠诚 刘焕荣 张永春 黄惠 徐瑞东 付仁春 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第10期3394-3404,共11页
Al/conductive coating/α-Pb O2-Ce O2-Ti O2/β-PbO 2-MnO 2-WC-Zr O2 composite electrode material was prepared on Al/conductive coating/α-PbO 2-Ce O2-Ti O2 substrate by electrochemical oxidation co-deposition technique... Al/conductive coating/α-Pb O2-Ce O2-Ti O2/β-PbO 2-MnO 2-WC-Zr O2 composite electrode material was prepared on Al/conductive coating/α-PbO 2-Ce O2-Ti O2 substrate by electrochemical oxidation co-deposition technique. The effects of current density on the chemical composition, electrocatalytic activity, and stability of the composite anode material were investigated by energy dispersive X-ray spectroscopy（EDXS）, anode polarization curves, quasi-stationary polarization（Tafel） curves, electrochemical impedance spectroscopy（EIS）, scanning electron microscopy（SEM）, and X-ray diffraction（XRD）. Results reveal that the composite electrode obtained at 1 A/dm2 possesses the lowest overpotential（0.610 V at 500 A/m2） for oxygen evolution, the best electrocatalytic activity, the longest service life（360 h at 40 °C in 150 g/L H2SO4 solution under 2 A/cm2）, and the lowest cell voltage（2.75 V at 500 A/m2）. Furthermore, with increasing current density, the coating exhibits grain growth and the decrease of content of Mn O2. Only a slight effect on crystalline structure is observed. 展开更多
关键词 composite electrode material A1 substrate β-PbO2-MnO2-WC-ZrO2 electrochemical co-deposition current density
暂未订购 下载PDF
Preparation of the Ag_2O_2-PbO_2 Modified Electrode and Its Application towards Escherichia coli Fast Counting in Water 认领 引用 被引量：4
10
作者 JingGU WenZHANG +3 位作者 YuFengYANG LeiZHENG ZiRongWU LiTongJIN 《Chinese Chemical Letters》 SCIE CAS 2005年第5期635-638,共4页
A novel nano crystalline Ag2O2-PbO2 film chemically modified electrode (CME) was prepared and the CME was characterized by X-ray diffractometer (XRD) and atomic force microscope (AFM). By chronoamperometry, the nano A... A novel nano crystalline Ag2O2-PbO2 film chemically modified electrode (CME) was prepared and the CME was characterized by X-ray diffractometer (XRD) and atomic force microscope (AFM). By chronoamperometry, the nano Ag2O2-PbO2 CME was used as bioelectro- chemical sensor to determine the population of Escherichia coli (E. coli) in water. Compared with conventional methods, it is found that the technique we used is fast and convenient in counting E. coli. 展开更多
关键词 Ag2O2-PbO2 modified platinum electrode Escherichia coli fast counting.
暂未订购 下载PDF
Cross-section design of the flow channels in membrane electrode assembly electrolyzer for CO2 reduction reaction through numerical simulations 认领 引用 被引量：1
11
作者 Lili Zhang Hui Gao +7 位作者 Gong Zhang Yuning Dong Kai Huang Zifan Pang Tuo Wang Chunlei Pei Peng Zhang Jinlong Gong 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第1期332-337,共6页
Membrane electrode assembly(MEA)is widely considered to be the most promising type of electrolyzer for the practical application of electrochemical CO2 reduction reaction(CO2RR).In MEAs,a square-shaped cross-sec... Membrane electrode assembly(MEA)is widely considered to be the most promising type of electrolyzer for the practical application of electrochemical CO2 reduction reaction(CO2RR).In MEAs,a square-shaped cross-section in the flow channel is normally adopted,the configuration optimization of which could potentially enhance the performance of the electrolyzer.This paper describes the numerical simulation study on the impact of the flow-channel cross-section shapes in the MEA electrolyzer for CO2RR.The results show that wide flow channels with low heights are beneficial to the CO2RR by providing a uniform flow field of CO2,especially at high current densities.Moreover,the larger the electrolyzer,the more significant the effect is.This study provides a theoretical basis for the design of high-performance MEA electrolyzers for CO2RR. 展开更多
关键词 Electrochemical reduction of CO2 Membrane electrode assembly Mass transfer Gas diffusion electrode Computational fluid dynamics
暂未订购 下载PDF
Integrated CO2capture and electrochemical reduction:From mechanism understanding to gas diffusion electrode and catalyst design 认领 引用
12
作者 Xinyu Zhang Ming Sun +3 位作者 Yao Wang Hanya Zhang Juan Du Aibing Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第7期81-100,共20页
Integrating the CO2capture process with the CO2electrochemical reduction process into a single system can eliminate the need for storage and transportation following CO2capture.This integrated process offers ... Integrating the CO2capture process with the CO2electrochemical reduction process into a single system can eliminate the need for storage and transportation following CO2capture.This integrated process offers several advantages over multi-step cascade processes,including reduced costs and enhanced CO2utilization.However,the integrated CO2capture and electrochemical reduction(CCER)process encounters several challenges,including the low CO2adsorption performance of the gas diffusion electrode(GDE)and catalyst,as well as the poor activity and selectivity of the catalyst for the electrochemical reduction of CO2.This review aims to systematically summarize the fundamentals of the CCER process.Based on an in-depth understanding of the CO2mass transfer,adsorption,and electrochemical reduction processes,GDE design strategies based on the modulation of wettability and structure are discussed to enhance the CO2capture capability at the GDE level.At the catalyst level,catalyst design strategies based on the introduction of CO2capture sites and the construction of CO2mass transfer channels were analyzed,and catalyst design strategies for enhanced CO2capture were proposed.This review summarizes the most common catalysts for CO2electrochemical reduction,such as Ni-based,Bi-based,and Cubased catalysts,and analyzes their design strategies based on reaction pathways for generating specific products.Finally,the problems and challenges of the CCER process are summarized and proposed,which provide ideas for the further application of this technology in the future. 展开更多
关键词 CO2capture Electrochemical reduction Gasdiffusion electrode Catalyst Application
暂未订购 下载PDF
In-situ and operando characterizations in membrane electrode assemblies:Resolving dynamic interfaces and degradation pathways in CO2electrocatalysis 认领 引用
13
作者 Jiachen Wu Pengfei Liu Huagui Yang 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2025年第12期1-8,共8页
Membrane electrode assemblies(MEAs)represent the preeminent configuration for industrial-scale CO2electrolysis,yet their dynamic interfaces and degradation pathways remain inadequately resolved.This perspective hig... Membrane electrode assemblies(MEAs)represent the preeminent configuration for industrial-scale CO2electrolysis,yet their dynamic interfaces and degradation pathways remain inadequately resolved.This perspective highlights how advanced operando characterization techniques-synchrotron X-ray spectroscopy,spatially resolved X-ray fluorescence,vibrational spectroscopy,electrochemical diagnostics et al.-decipher atomic-scale catalyst evolution,transient ion/water fluxes,and extreme interfacial microenvironments under industrial current densities.These methodologies reveal critical degradation mechanisms,including catalyst restructuring,carbonate precipitation-driven flooding,and cation-induced pH gradients,which are inaccessible to conventional ex-situ or three-electrode analyses.Integrating multimodal characterization is paramount to correlate transient interfacial chemistry with system-level performance,guiding the rational design of durable,high-selectivity MEAs for scalable CO2conversion. 展开更多
关键词 Operando characterization Membrane electrode assemblies Electrocatalytic CO2reduction Interfacial dynamics Degradation pathways
暂未订购 下载PDF
Facile preparation of a Ti/α-PbO2/β-PbO2 electrode for the electrochemical degradation of 2-chlorophenol 认领 引用 被引量：16
14
作者 Qiani Zhang Xinyan Guo +2 位作者 Xiaodan Cao Dongtian Wang Jie Wei 《催化学报》 2015年第7期975-981,共7页
A Ti/α-PbO2/β-PbO2electrode with high stability was prepared and examined toward the electro-chemical degradation of 2-chlorophenol.Scanning electron microscopy analysis revealed that Ti/α-PbO2/β-PbO2h... A Ti/α-PbO2/β-PbO2electrode with high stability was prepared and examined toward the electro-chemical degradation of 2-chlorophenol.Scanning electron microscopy analysis revealed that Ti/α-PbO2/β-PbO2had a cauliflower morphology comprising smallβ-Pb02 crystals.The 2-chlorophenol removal rate using the Ti/α-PbO2/β-PbO2electrode was 100%after 180 min of electrolysis under optimal conditions,which were selected based on the orthogonal test method,i.e.,initial concentration of 2-cholorophenol=50 mg/L,concentration of Na2S04=0.1 mol/L,tem-perature=35℃,and anode current density=20 mA/cm2.Kinetic analyses demonstrated that the electrochemical oxidation of 2-chlorophenol on the Ti/α-PbO2/β-PbO2electrode followed pseu-do-first order kinetics. 展开更多
关键词 Electrochemical degradation 2-Chlorophenol β-Pb02electrode α-PbO2interlayer Kinetic analysis
暂未订购 下载PDF
Micro/nano-manufacturing of bioinspired blood-repellent surfaces for extreme application in surgical electrodes 认领 引用 被引量：2
15
作者 Kaikai Li Yingxi Xie +5 位作者 Pengyu Shen Min Yu Jiao Gao Junming Bi Long Wang Longsheng Lu 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2025年第4期435-449,共15页
Surgical electrodes are frequently associated with disadvantages such as high surface adhesion and severe thermal damage to adjacent normal tissues,which threaten operation quality and patient safety.In this study,by ... Surgical electrodes are frequently associated with disadvantages such as high surface adhesion and severe thermal damage to adjacent normal tissues,which threaten operation quality and patient safety.In this study,by mimicking the micromorphology and bio-anti-adhesion of shark skin,we proposed a strategy that utilized nanoscale aluminium oxide(Al2O3)films deposited on bioinspired shark skin(BSS)microstructures to design a composite surface(Al2O3@BSS)and integrated it into both flat sides of the surgical electrodes.Microano-manufacturing of the Al2O3@BSS surface was sequentially accomplished using nanosecond laser texturing,atomic layer deposition,and low-temperature annealing,endowing it with excellent blood-repellent properties.Visualisation experiments revealed that the tensile stress gradient of the blood coagulum with increasing thickness under a thermal field prompted it to separate from the Al2O3@BSS surface,resulting in anti-adhesion.Furthermore,it was observed for the first time that Al2O3 films could transiently excite discharge along a dielectric surface(DADS)to ablate tissues while suppressing Joule heat,thereby minimising thermal damage.A combination of ex vivo tissue and living mouse experiments demonstrated that the Al2O3@BSS electrodes exhibited optimal comprehensive performance in terms of anti-adhesion,damage minimisation,and drag reduction.In addition,the Al2O3@BSS electrodes possessed remarkable antibacterial efficacy against E.coli and S.aureus.The proposed strategy can meet the extreme application requirements of surgical electrodes to improve operation quality and offer valuable insights for future studies. 展开更多
关键词 surgical electrode Al2O3films bioinspired shark skin microstructures blood-repellent properties anti-adhesion damage minimisation
暂未订购 下载PDF
High-Performance Stretchable Gallium Battery for Wearable Electronics,Through Synthesis of Foam Electrodes 认领 引用 被引量：1
16
作者 Elahe Parvini Abdollah Hajalilou +2 位作者 Manuel Reis Carneiro Pedro Alhais Lopes Mahmoud Tavakoli 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2025年第4期80-86,共7页
The demand for sustainable and stretchable thin-film printed batteries for bioelectronics,wearables,and e-textiles is rapidly increasing.Recently,we developed a fully 3D-printed soft-matter thin-film Ga-Ag2O batter... The demand for sustainable and stretchable thin-film printed batteries for bioelectronics,wearables,and e-textiles is rapidly increasing.Recently,we developed a fully 3D-printed soft-matter thin-film Ga-Ag2O battery with 3R characteristics:resilient to mechanical strain,repairable after damage,and recyclable.This battery achieved a record-breaking areal capacity of 26.37 mAh cm-2,increasing to 30.32 mAh cm-2 after 10 cycles under 100%strain.This performance stems from the synergistic effects of gallium’s liquid metal properties and the styrene-isoprene-styrene polymer in the anode.Gallium’s high specific capacity(1153.2 mAh g-1),deformability,and self-healing abilities,supported by its supercooled liquid phase,significantly enhance the battery’s resilience and efficiency.However,the cathode’s lower theoretical capacity,due to Ag2O(231.31 mAh g-1),remains a limitation.Traditional Ag2O-carbon black-styrene-isoprene-styrene cathodes experience rapid capacity decay as only the surface area of the active materials interacts with the electrolyte.To overcome this,we designed a carbon-filled Ag2O foam electrode using a sacrificial sugar template,increasing the effective surface area.This optimization enhanced ion-exchange efficiency,specific capacity,and cyclability,achieving a specific capacity of 221.16 mAh g-1.Consequently,the Ga-Ag2O stretchable battery attained a record areal capacity of 40.91 mAh cm-2—double that of nonfoam electrodes—and exhibited fivefold improved charge-discharge cycles.Using ultrastretchable Ag-EGaIn-styrene-isoprene-styrene and carbon black-styrene-isoprene-styrene current collectors,the battery’s specific capacity increased by 33%under 50%strain.Integrated into a soft-matter smart wristband for temperature monitoring,the battery demonstrated its promise for wearable electronics. 展开更多
关键词 Ag2O-CB-SIS composite electrochemical performance foam fabrication liquid metal battery porous electrode materials
暂未订购 下载PDF
Emerging CoMn-LDH@MnO2 electrode materials assembled using nanosheets for flexible and foldable energy storage devices 认领 引用 被引量：15
17
作者 Yue Zhao Jiafeng He +3 位作者 Meizhen Dai Depeng Zhao Xiang Wu Baodan Liu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2020年第6期67-73,I0003,共7页
CoMn layered double hydroxides(CoMn-LDH)are promising electrode materials for supercapacitors because of their excellent cyclic stability.However,they possess relatively low capacitances.In this work,hybrid CoMn-LDH@M... CoMn layered double hydroxides(CoMn-LDH)are promising electrode materials for supercapacitors because of their excellent cyclic stability.However,they possess relatively low capacitances.In this work,hybrid CoMn-LDH@MnO2 products grown on Ni foams were obtained through a facile hydrothermal method.The as-synthesized samples employed as electrodes deliver a specific capacitance of 2325.01 F g^-1 at 1 A g^-1.An assembled asymmetric supercapacitor using these products as positive electrodes shows a maximum energy density of 59.73 W h kg^-1 at 1000.09 W kg^-1.The prominent electrochemical performance of the as-prepared electrodes could be attributes to hierarchical structures.These findings suggest that hybrid structures might be potential alternatives for future flexible energy storage devices. 展开更多
关键词 CoMn-LDH@MnO2 electrode Specific capacitance Flexible device Cyclic stability
暂未订购 下载PDF
Enhancing Capacitance Performance of Ti3C2Tx MXene as Electrode Materials of Supercapacitor: From Controlled Preparation to Composite Structure Construction 认领 引用 被引量：23
18
作者 Xiaobei Zang Jiali Wang +5 位作者 Yijiang Qin Teng Wang Chengpeng He Qingguo Shao Hongwei Zhu Ning Cao 《Nano-Micro Letters》 SCIE EI CAS CSCD 2020年第6期152-175,共24页
Ti3C2Tx,a novel two-dimensional layer material,is widely used as electrode materials of supercapacitor due to its good metal conductivity,redox reaction active surface,and so on.However,there are many challenges to be... Ti3C2Tx,a novel two-dimensional layer material,is widely used as electrode materials of supercapacitor due to its good metal conductivity,redox reaction active surface,and so on.However,there are many challenges to be addressed which impede Ti3C2Tx obtaining the ideal specific capacitance,such as restacking,re-crushing,and oxidation of titanium.Recently,many advances have been proposed to enhance capacitance performance of Ti3C2Tx.In this review,recent strategies for improving specific capacitance are summarized and compared,for example,film formation,surface modification,and composite method.Furthermore,in order to comprehend the mechanism of those efforts,this review analyzes the energy storage performance in different electrolytes and influencing factors.This review is expected to predict redouble research direction of Ti3C2Tx materials in supercapacitors. 展开更多
关键词 Ti3C2Tx MXene Capacitance performance Storage mechanism Electrode materials Supercapacitor
暂未订购 下载PDF
The electrochemical hydrogen storage performances of Si-added La–Mg–Ni–Co-based A_2B_7-type electrode alloys 认领 引用 被引量：11
19
作者 Yang-Huan Zhang Li-Cui Chen +3 位作者 Tai Yang Chao Xu Hui-Ping Ren Dong-Liang Zhao 《Rare Metals》 SCIE EI CAS CSCD 2015年第8期569-579,共11页
In order to improve the electrochemical cycle stability of the RE–Mg–Ni-based A2B7-type electrode alloys, a small amount of Si has been added into the alloys.The casting and annealing technologies were adopted to fa... In order to improve the electrochemical cycle stability of the RE–Mg–Ni-based A2B7-type electrode alloys, a small amount of Si has been added into the alloys.The casting and annealing technologies were adopted to fabricate the La0.8Mg0.2Ni3.3Co0.2Six(x = 0–0.2) electrode alloys. The impacts of the addition of Si and annealing treatment on the structures and electrochemical performances of the alloys were investigated systematically. The results obtained by XRD and SEM show that all the as-cast and annealed alloys are of a multiphase structure, involving two main phases(La, Mg)2Ni7and La Ni5 as well as a residual phase La Ni3. Both adding Si and the annealing treatment lead to an evident change in the phase abundance and cell parameters of(La, Mg)2Ni7and La Ni5 major phases of the alloy without altering its main phase component. Moreover, the annealing treatment has the composition of the alloy distributed more homogeneously overall and simultaneously causes the grain of the alloy to be coarsened obviously. The electrochemical measurements indicate that adding Si and the annealing treatment give a significant rise to the influence on the electrochemical performances of the alloys. In brief, the cycle stability of the as-cast and annealed alloys evidently increases with the rising of Si content, while their discharge capacities obviously decrease under the same circumstances. Furthermore, the electrochemical kineticproperties of the electrode alloys, including the high rate discharge ability, the limiting current density(IL), hydrogen diffusion coefficient(D), and the charge-transfer resistance, first augment and then decline with the rising of Si content. Similarly, it is found that the above-mentioned electrochemical properties first mount up and then go down with the rising annealing temperature. 展开更多
关键词 A2B7-type electrode alloy Adding Si Annealing trea
暂未订购 下载PDF
A high activity of Ti/SnO_2-Sb electrode in the electrochemicaldegradation of 2,4-dichlorophenol in aqueous solution 认领 引用 被引量：5
20
作者 Junfeng Niu Dusmant Maharana +2 位作者 Jiale Xu Zhen Chai Yueping Bao 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2013年第7期1424-1430,共7页
Electrochemicaldegradation of2,4-dichlorophenol （2,4-DCP） in aqueous solutionwas investigated over Ti/SnO2-Sb anode. The factors influencing thedegradation rate, such as applied currentdensity （2-40 mA/cm2 ）, pH ... Electrochemicaldegradation of2,4-dichlorophenol （2,4-DCP） in aqueous solutionwas investigated over Ti/SnO2-Sb anode. The factors influencing thedegradation rate, such as applied currentdensity （2-40 mA/cm2 ）, pH （3-11） and initial concentration （5-200 mg/L）were evaluated. Thedegradation of2,4-DCP followed apparent pseudo first-order kinetics. Thedegradation ratio on Ti/SnO2 -Sb anode attained 〉 99.9% after 20 min of electrolysis at initial 5-200 mg/L concentrations at a constant currentdensity of 30 mA/cm2 with a 10 mmol/L sodium sulphate （Na2SO4 ） supporting electrolyte solution. The results showed that 2,4-DCP （100 mg/L）degradation and total organic carbon （TOC） removal ratio achieved 99.9% and 92.8%, respectively, at the optimal conditions after 30 min electrolysis. Under this condition, thedegradation rate constant （k） and thedegradation half-life （t1/2 ）were 0.21 min1 and （2.8 ± 0.2） min, respectively. Mainly carboxylic acids （propanoic acid, maleic acid, propanedioic acid, acetic acid and oxalic acid） weredetected as intermediates. The energy efficiencies for2,4-DCPdegradation （5-200 mg/L）with Ti/SnO2-Sb anode ranged from 0.672 to 1.602 g/kWh. The Ti/SnO2-Sb anodewith a high activity to rapid organic oxidation could be employed todegrade chlorophenols, particularly2,4-DCP inwastewater. 展开更多
关键词 2 4-dichlorphenol Ti/SnO2 -Sb electrode electrochemicaldegradation total organic carbon
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 45 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈