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- Discipline
- Keyword
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- Electrocatalysis (61)
- Cyclic voltammetry (59)
- Electrodeposition (57)
- Lithium ion battery (52)
- Oxygen reduction reaction (51)
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- Electrochemistry (40)
- Supercapacitor (39)
- Cathode material (36)
- Electrochemical performance (35)
- Corrosion (34)
- Lithium-ion batteries (30)
- Fuel cell (27)
- Lithium-ion battery (27)
- Electrochemical impedance spectroscopy (25)
- Modified electrode (24)
- Lithium ion batteries (23)
- Anode materials (19)
- Carbon nanotubes (19)
- Cathode (19)
- Anode (18)
- Polyaniline (18)
- Electrolyte (17)
- Anode material (16)
- Electrocatalyst (16)
- Li-ion battery (16)
- Oxygen evolution reaction (16)
- Cathode materials (15)
- Electrochemical oxidation (15)
- Fuel cells (15)
- Electrocatalytic oxidation (14)
- Publication Year
Articles 1141 - 1170 of 1934
Full-Text Articles in Materials Chemistry
Electrochemical Behavior And Determination Of Luteolin At A Glassy Carbon Electrode, Ai-Lin Liu, Shao-Bo Zhang, Xiao-Sha Wu, Li-Ping Li, Yang-Yuan Cao, Li-Ying Huang, Xin-Hua Lin
Electrochemical Behavior And Determination Of Luteolin At A Glassy Carbon Electrode, Ai-Lin Liu, Shao-Bo Zhang, Xiao-Sha Wu, Li-Ping Li, Yang-Yuan Cao, Li-Ying Huang, Xin-Hua Lin
Journal of Electrochemistry
The electrochemical behavior of luteolin was studied by voltammetry at a glassy carbon electrode in phosphate buffer solution.The results exhibited that the well-defined redox peak of luteolin is observed and the electrode process is adsorption-controlled.The charge transfer coefficient(α) was calculated as 0.66 in phosphate buffer solution(pH 4.0).The relationships between oxidation peak current and the concentration of luteolin are linear in the range of 1.0×10-8 ～ 5.0×10-6 mol·L-1 by differential pulse voltammetric method.The detection limit had been estimated as 1.0×10-8 molL-1.This method can be used for the determination of luteolin with satisfactory results.
Selection Of Additions In The Process Of Electrochemical Synthesizing Of K_2feo_4, Wei-Hua Yang, Dong-Qin Bi, Yan Zhou, Hong-Hui Wang, Xin-Ren Lan
Selection Of Additions In The Process Of Electrochemical Synthesizing Of K_2feo_4, Wei-Hua Yang, Dong-Qin Bi, Yan Zhou, Hong-Hui Wang, Xin-Ren Lan
Journal of Electrochemistry
Some of different additions including KIO4 was added to the anodic electrolyte for electrochemical synthesizing of K2FeO4,the effects of these additions on current yield were investigated.XRD and SEM were used to characterize the structure and image of K2FeO4.The results show that KIO4 is a preferable addition.When the mass dosage of KIO4 is 0.02%,electrolysis time is 1 h,the current yield is enhanced by 31.6% and the corresponding purity of the product is improved by 3.85 %.
Study On Metal|Solid Electrolyte|Gel Membrane Containing Water|Graphite System, Jing-Dong Liu
Study On Metal|Solid Electrolyte|Gel Membrane Containing Water|Graphite System, Jing-Dong Liu
Journal of Electrochemistry
The characteristic of oxide layer formed on the surface of metal in Metal|Solid Electrolyte|Gel Membrane Containing Water|Graphite System was studied by using Point Defect Model and Barrier Layer/Porous Layer Model.Trace water in solid electrolyte helped to form porous layer at the surface of metal,The thickness of porous layer increased due to water molecule reacts with barrier layer continuously,which lowered the porosity and decreased the electromotive potential and current.Porosity influenced solubility behavior of oxide layer intensely.Like barrier layer,porous layer is also a semiconductor.
Ion-Implanting Modification Of Layered Manganese Dioxide And Its Electrochemical Performance, He-Ning Huang, Dong-Ping Lv, Xing-Kang Huang, Qi-Wei Zhang, Yong Yang
Ion-Implanting Modification Of Layered Manganese Dioxide And Its Electrochemical Performance, He-Ning Huang, Dong-Ping Lv, Xing-Kang Huang, Qi-Wei Zhang, Yong Yang
Journal of Electrochemistry
Layered MnO2(δ-MnO2) was prepared by thermal decomposition of potassium permanganate.Ti was ion-implanted into such δ-MnO2 by physical techniques,forming a composite(δ-MnO2-Ti).These materials were characterized by XRD,SEM,XPS techniques and their electrochemical proprieties were investigated.The results showed that the layered structure of δ-MnO2 did not been destroyed after Ti ion implantation,and the implanted Ti element was mainly Ti4+ as indicated by XPS.Both of the first and the highest discharge specific capacities of the ion-implanted layered MnO2(δ-MnO2-Ti),compared to those of δ-MnO2,were improved significantly.
Determination Of Malathion Based On Carbon Nanotubes Modified Electrode Incorporating Acetylcholinesterase, Lu Zhang, Yao-Dong Zhang, Hong-Lan Qi
Determination Of Malathion Based On Carbon Nanotubes Modified Electrode Incorporating Acetylcholinesterase, Lu Zhang, Yao-Dong Zhang, Hong-Lan Qi
Journal of Electrochemistry
A biosensor for determination of organophosphorus pesticide based on the acetylcholinesterase and multi-wall carbon nanotubes modified electrode is fabricated.Under the optimal conditions,the chronoamperometric current at +0.70V(vs.SCE) increased linearly with the concentration of malathion in the range from 6.0×10-10 to 6.0×10-9 mol·L-1 with a detection limit of 1.0×10-10 mol·L-1.The recoveries of malathion in lake water is 97% to 105% determinated by this method.
The Syntheses And Electrochemical Performance Of Nano-Mno_2 For Supercapacitor, Jun Ma, Ming-Sen Zheng, Quan-Feng Dong
The Syntheses And Electrochemical Performance Of Nano-Mno_2 For Supercapacitor, Jun Ma, Ming-Sen Zheng, Quan-Feng Dong
Journal of Electrochemistry
Nano-manganese dioxide were prepared by two different methods which are low temperature solid reaction and chemical deposition.The products were characterized by XRD,SEM,BET and constant current charge-discharge tests.The result shows that there is a close relationship between specific capacitance and BET surface areas.Meanwhile the specific capacitance was impacted little by the structure of the nano-manganese dioxides.However,the product performance of high rates,was influenced by structure,the higher rate can be obtained with the more perfect crystal structure.
Electrochemical Codeposition Of Ha/Collagen Coating And Preliminary In Vitro Tests, Yan-Li Xu, Long-Xiang Lin, Zhi-Wang Geng, Chang-Jian Lin
Electrochemical Codeposition Of Ha/Collagen Coating And Preliminary In Vitro Tests, Yan-Li Xu, Long-Xiang Lin, Zhi-Wang Geng, Chang-Jian Lin
Journal of Electrochemistry
An electrochemical co-deposition technique has been developed to prepare a hydroxyapatite(HA)/collagen composite coating on Ti substrate.The SEM results show that the composite coating exhibits a homogeneous and porous morphology with nano-micro structure.And the XPS results demonstrate that the composite coating is formed by an organic-inorganic hybrization.In vitro cell culture tests reveal that,compared with pure HA and pure Ti,the HA/collagen composite coating exhibit a best biological properties.
Growth Mechanism And Morphology Of Electrodeposited Micro-Nanocrystalline Iron, Qiao-Xin Zhang, Jia-Ming Zhang, Li-Ning Yang
Growth Mechanism And Morphology Of Electrodeposited Micro-Nanocrystalline Iron, Qiao-Xin Zhang, Jia-Ming Zhang, Li-Ning Yang
Journal of Electrochemistry
Effects of current density,reaction temperature,electrolyte concentration and surfactant on the electrochemical deposition of micro-nanocrystalline iron were studied.Morphologies and structures of the samples were characterized by SEM and XRD,the results showed that the electrodeposits is slice α-Fe under little current and the density,lower temperature and higher concentration,and the dentritic α-Fe is under opposite conditions,but the influence from surfactant is unconsicously.Moreover,the growth mechanism of the electrodeposits was also analysed here.
Pdms Regularly Superhydrophobic Surfaces Prepared By Icp Etching Silicon Model, Run-Xiang Zhang, Yu-Long Zhang, Hua-Shui Lin
Pdms Regularly Superhydrophobic Surfaces Prepared By Icp Etching Silicon Model, Run-Xiang Zhang, Yu-Long Zhang, Hua-Shui Lin
Journal of Electrochemistry
A series of different dimensions regularly micropillar array hydrophobic Poly(dimethylsiloxane)(PDMS) surfaces were obtained by peeling off PDMS which was poured onto the silicon models.The silicon models were prepared by ICP etching technology.The results indicate that the water contact angle(WCA) was increased with the size and the height of the mocropillar,decreased with increasing the distance of the mocropillar when the height of the micropillar was relative small;if the height of the micropillar was relative big,WCA was decreased with increasing the size of micropillar,meanwhile,the distance of the micropillar was a complex factor to WCA,and the height of the micropillar have little influence.The …
Prerapation And Supercapacitor Property Of Al Doped Co_3o_4, Xin Ge, Ye Chen, Chun-Xia Zhang, Chang Shu
Prerapation And Supercapacitor Property Of Al Doped Co_3o_4, Xin Ge, Ye Chen, Chun-Xia Zhang, Chang Shu
Journal of Electrochemistry
With KOH as precipitator to prepare Aluminum doped Co3O4,X-ray diffraction indicated that the doping Al did not change the crystal structure of Co3O4.Electrochemical properties of the sample were tested by cyclic voltammetry and constant-current charge/discharge.The results showed that the chemical doping improved the specific capacitance.When the mol ratio of Co(Ⅱ) with Al(Ⅲ)was 1∶0.05,the specific capacitance was up to 518.07 F/g within 0～400 mV potenitial at current density 5 mA/cm2.
Preparation,Structure,And Cv Study Of The Supported Ptruir/Tic Electrocatalysts For Oxygen Electrodes, Sheng Sui, Li-Rong Ma
Preparation,Structure,And Cv Study Of The Supported Ptruir/Tic Electrocatalysts For Oxygen Electrodes, Sheng Sui, Li-Rong Ma
Journal of Electrochemistry
The PtRuIr/TiC electrocatalysts were prepared by method of reduction and deposition on TiC powders as supports together with ultrasonic wave dispersion.The sampls were characterized by BET surface area,scanning electron microscope,X-ray diffraction,and cyclic voltammetry techniques.The active components of Pt,Ru,and Ir particles(2.6%Pt,1.3%Ru,16%Ir,and 80%TiC,by mass) were mainly dispersed on the outer surface of the TiC supports,which structures were in favor of fine variable crystallites.It was found that the electrochemical performance of the PtRuIr/TiC electrodes was about three times as that of the unsupported electrocatalysts with the same active compositions for oxygen evolution reaction.After 120 times of CV cycles,there was almost no PtRuIr/TiC dissolving …
Electro-Chemical Oxidation Kinetics Of The V(Iv) In The Sulfuric Acid Solution, Yong-Lian Qiao, Qian Xu, Jie Zhang, Yu-Chun Zhai
Electro-Chemical Oxidation Kinetics Of The V(Iv) In The Sulfuric Acid Solution, Yong-Lian Qiao, Qian Xu, Jie Zhang, Yu-Chun Zhai
Journal of Electrochemistry
The electro-chemical oxidation kinetics for V(IV) in the sulfuric acid solution were investigated by cyclic voltammetry and steady state polarization curves at a graphite,platinum or conducting polymer electrode.Some kinetics parameters for the electrochemical reaction of V(IV) were calculated according to the Tafel curves.The results showed that the exchange current density and reversibility of V(V)/V(IV) redox reaction at the graphite electrode is largest among the three electrodes.There is the broadest extent of water stability and large oxidgen evolution potential when the conducting polymer was used as a working electrode in the solution of VOSO4(0.5 mol/L) and H2SO4(2 mol/L),while it is easy …
Studies On Catalytic Mechanism Of Li/Socl_2 Batteries By Metal Phthalocyanine Complexes, Zhan-Wei Xu, Qing-Jin Sun, Bi-Yun Su, Tu-Lin Che, Yan-Hong Song, Yao-Min Li, Jian-She Zhao
Studies On Catalytic Mechanism Of Li/Socl_2 Batteries By Metal Phthalocyanine Complexes, Zhan-Wei Xu, Qing-Jin Sun, Bi-Yun Su, Tu-Lin Che, Yan-Hong Song, Yao-Min Li, Jian-She Zhao
Journal of Electrochemistry
Effects of metal phthalocyanine comlexes MPc(M= Mn(Ⅱ),Fe(Ⅱ),Co(Ⅱ),Ni(Ⅱ),Cu(Ⅱ)) as electrochemical catalysts on the performance of Li/SOCl2 batteries have been examined at constant resistance.And the reasons of MPc affecting the discharged voltage and discharged time of Li/SOCl2 batteries were also brought forward.A few new viewpoints on the catalytic mechanism of the reduction of thionyl chloride by phthalocyanine complexes were proposed.
Electro-Generated Mno_2 In Supersonic Wave Bath And Its Application In Preparation Of Glyceraldehyde, Yan-Hong Cai, Li-Qun Chen, Ri-Yao Chen, Xi Zheng, Xiao Chen, Zhen Chen
Electro-Generated Mno_2 In Supersonic Wave Bath And Its Application In Preparation Of Glyceraldehyde, Yan-Hong Cai, Li-Qun Chen, Ri-Yao Chen, Xi Zheng, Xiao Chen, Zhen Chen
Journal of Electrochemistry
Glyceraldehyde is prepared by using MnO2/ Mn2+as the media in a cationic membrane electrolytic cell.Under ultrasonic high-frequency oscillation,the electro-generated nanometer MnO2 dispersed in the solution with several tens nm till several micron.Then the MnO2 is used for selective oxidation of glycerine to glyceraldehydes.The catalyzing selectivity of MnO2/ Mn2+is high and the current efficiency may account to 97.4 %.
Electrocatalytic Separation For Dopamine And Ascorbic Acid Using Poly-Evans Blue Modified Glassy Carbon Electrode And Simultaneous Determination, Li-Qing Lin, Xin-Hua Lin, Hong Yao, Jing-Hua Chen, Guang-Wen Li
Electrocatalytic Separation For Dopamine And Ascorbic Acid Using Poly-Evans Blue Modified Glassy Carbon Electrode And Simultaneous Determination, Li-Qing Lin, Xin-Hua Lin, Hong Yao, Jing-Hua Chen, Guang-Wen Li
Journal of Electrochemistry
Voltammetric behavior of the Dopamine(DA) and ascorbic acid(AA) at Poly-Evans Blue modified electrode were studied and a novel method for determination of the content of DA and AA is established.In pH 4.5 phosphate buffer solution,the modified electrode shows enhanced sensitivity and excellent electrochemical discrimination to DA and AA.The relationship between oxidation peak current and the concentration of DA or AA is linear in the range of 1.0 10-6 ～3.0×10-5mol/L and 5.0×10-6~1.05×10-4 mol/L,the detection limit has been estimated as 2.5(10-7 mol/L and 3.0 ×10-7 mol/ L,respectively.The oxidable potential difference of DA and AA was about 184 mV at Poly-Evans Blue modified …
Oxygen Enrichment Effect Of Mno_2-Pt/C Compound Catalyst To The Cathode Of Pemfc, Hong-Feng Xu, Mao-Feng Zhang, Quan-Quan Gan, Cai-Sheng Huang
Oxygen Enrichment Effect Of Mno_2-Pt/C Compound Catalyst To The Cathode Of Pemfc, Hong-Feng Xu, Mao-Feng Zhang, Quan-Quan Gan, Cai-Sheng Huang
Journal of Electrochemistry
TO study of the oxygen storage material of air cathode is crucial for increasing performance of proton exchange membrane fuel cell.Using the MnO2 as oxygen storage materials,a MnO2-Pt/C catalysts were prepared and is used to replace the conventional Pt/C in air cathode.The electrochemical performance of air cathode composed of MnO2 supported on Pt/C and the properties of fuel cell composed of MnO2-Pt/C were investigated by using the CV,galvanostatic dischange method and TEM.
Influence Of Chromium On The Semi-Conductive Property Of Passive Film Formed On Carbon Steel In Bicarbonate/Carbonate Buffer Solution, Jin-Bo Li, Jie-Wu Zhu, Mao-Sheng Zheng
Influence Of Chromium On The Semi-Conductive Property Of Passive Film Formed On Carbon Steel In Bicarbonate/Carbonate Buffer Solution, Jin-Bo Li, Jie-Wu Zhu, Mao-Sheng Zheng
Journal of Electrochemistry
The influence of chromium on the semi-conductive property of the passive film formed at carbon steel in bicarbonate/carbonate buffer solution,is investigated by using electrochemical impedance spectroscopy(EIS).The results showed that the passive film fomed at carbon steel appeared an n-type semi-conductive property,but if the passive film formed at carbon steel with 3% chromium content exhibited an a-p semi-conductive charatcer.The slopes of Mott-Schottky plot of two passive films increased with rising the formation potential,it indicating the defect density of the film decreasing,but for the passive film formed at carbon steel with chromium additive,its donor density was lower about one order of magnitude …
Fabrication And Charaterization Of Nitrogen-Doped Tio_2 Nanotube Array And Its Visible Light Activity, Hui-Fang Zhuang, Yue-Kun Lai, Jing Li, Lan Sun, Chang-Jian Lin
Fabrication And Charaterization Of Nitrogen-Doped Tio_2 Nanotube Array And Its Visible Light Activity, Hui-Fang Zhuang, Yue-Kun Lai, Jing Li, Lan Sun, Chang-Jian Lin
Journal of Electrochemistry
Nitrogen-doped TiO2 nanotube array was fabricated by an electrochemical anodic oxidation followed a wet process.XPS result indicates that the nitrogen atoms were doped into lattice of TiO2 nanotubes.The UV-Vis spectra show that the photoabsorption of N-doped TiO2 nanotube array film is enhanced in the visible light region.Compared with the TiO2 nanotube array film,the N-doped TiO2 nanotubes exhibite a higher photocatalytic activity which is evaluated by the decomposition rate of methyl orange using the tungsten-halogen lamp as light source.
Effect Of Tension On Corrosion Behavior Of Galvanized Steel Wire For Cable-Stayed Bridge, Xue-Ming Li, Jie-Min Zhou, Qiang Liu, Ling-Feng Kong, Jian-Ting Zhou
Effect Of Tension On Corrosion Behavior Of Galvanized Steel Wire For Cable-Stayed Bridge, Xue-Ming Li, Jie-Min Zhou, Qiang Liu, Ling-Feng Kong, Jian-Ting Zhou
Journal of Electrochemistry
Corrosion of steel wire in cables is a major cause of cable-stayed bridge deterioration.The corrosion behavior of galvanized steel wire at different tension is investigated by polarization voltammetry method and neutral salt spray test in 5%NaCl solution.The physical and chemical properties of corrosion products are characterized by XRD and TG-DTA.The result shows that the corrosion current or corrosion rate of galvanized steel wire is larger with increasing the tension,the white rust of galvanized steel wires at different tension appears within one cycle,the red rust appears after 16 cycles at 15~22kN tension,and 23 cycles at 0,10kN tension,and its corrosion products mainly …
Electrocatalytic Oxidation Of Methanol At The Nano Ni-B Amorphous Alloy Powdermicroelectrode, Yi-Xiong Zheng, Shi-Bing Yao, Shao-Min Zhou
Electrocatalytic Oxidation Of Methanol At The Nano Ni-B Amorphous Alloy Powdermicroelectrode, Yi-Xiong Zheng, Shi-Bing Yao, Shao-Min Zhou
Journal of Electrochemistry
Electrocatalytic oxidation of methanol at the nano Ni-B amorphous alloy powder-microelectrode in alkaline media was studied by using cyclic voltammetry.Compared to the highly preferred orientation(220) nickel electrode,The onset potential of methanol electrooxidation at the nano Ni-B microelectrode is negatively shifted about 0.04V,and the current density is increased approximately by 2 orders of magnitude.Thus,the nano Ni-B microelectrode has very strong electrocatalytic activity for the oxidation of methanol.The kinetic parameters were determined with the steady polarization curves.The results show that the rate constants for both the oxidation of Ni(Ⅱ) to Ni(Ⅲ) and the reduction of Ni(Ⅲ) to Ni(Ⅱ) at the nano Ni-B …
Preparation Of Manganese/Chromium Hexacyanoferrate Modified Glassy Carbon Electrode And Its Electrochemical Behavior, Sheng-Tao Zhang, Xiao-Yan Han, Ming-Yue Xue
Preparation Of Manganese/Chromium Hexacyanoferrate Modified Glassy Carbon Electrode And Its Electrochemical Behavior, Sheng-Tao Zhang, Xiao-Yan Han, Ming-Yue Xue
Journal of Electrochemistry
A film of poly(manganese/chromium hexacyanoferrate)(MnCrHCF)is formed on the glassy carbon electrode(GCE) by Cyclic Voltammetry scanning,and its electrochemical behavior was studied.Factors affecting the electro-deposition of the film such as pH values and sustaining electrolytes,were discussed.And mechanism of the reaction was investigated.
Morphology Of The Pb-Sn Alloy Thin-Layer Electrodeposition, Yan-Jun Du, Zhi-Gang Yin, Tong-Chi Xia
Morphology Of The Pb-Sn Alloy Thin-Layer Electrodeposition, Yan-Jun Du, Zhi-Gang Yin, Tong-Chi Xia
Journal of Electrochemistry
The morphology of Pb-Sn alloy thin-layer electrodeposition was studied.Experimental results showed that the morphology of deposit could vary as the concentration of Pb2+、 Sn2+ two kind metallic ion to be changed.The patterns of product appeared the dendritic,ramification,dense branch,fractal,and homogeneous structure and their morphological evolution was caused by the change in anisotropy of crystal growth and different stage of electrodeposits.
Electricity Generation From A Microbial Fuel Cell Employing Desulfovibrio Salexigens, Ping Ding, Hai-Bo Shao, Guang-Zhou Liu, Dong-Xia Duan, Ting Ma, Si-Jun Chen, Jian-Ming Wang, Jian-Qing Zhang
Electricity Generation From A Microbial Fuel Cell Employing Desulfovibrio Salexigens, Ping Ding, Hai-Bo Shao, Guang-Zhou Liu, Dong-Xia Duan, Ting Ma, Si-Jun Chen, Jian-Ming Wang, Jian-Qing Zhang
Journal of Electrochemistry
A microbial fuel cell of laboratory scale employing Desulfovibrio salexigens in lactate based seawater substrate was proposed.Electricity was continuously harvested after inoculation.During 20 days of fermentation/discharge,COD values of the substrate decreased by 61.7%,in which 9.81% was converted to electricity.
Electrochemical Performance Of Li_(1-X)M_Xfepo_4 Cathode Materials Synthesized By Polymer Pyrolysis Route, Ting Li, Jiang-Feng Qian, Yu-Liang Cao, Han-Xi Yang, Xin-Ping Ai
Electrochemical Performance Of Li_(1-X)M_Xfepo_4 Cathode Materials Synthesized By Polymer Pyrolysis Route, Ting Li, Jiang-Feng Qian, Yu-Liang Cao, Han-Xi Yang, Xin-Ping Ai
Journal of Electrochemistry
Olivine Li1-xMxFePO4(M=Cr3+、Mg2+、Mn2+、Ni2+)were synthesized by a polyacrylates-pyrolysis route.The structural and electrochemical properties of the as-synthesized cathode materials were investigated by powder X-ray diffraction(XRD),scanning electron microscopy(SEM),and electrochemical charge/discharge cycling.The results indicate that the metallic ions doped at low concentration do not affect the crystalline structure of the material,but considerably improve the rate capability and cycle performance of LiFePO4 at high rate.
Template Synthesis And Electrochemical Studies Of Ag_(Core)Au_(Shell) Nanowires, Li Ling, Ya-Xian Yuan, Min-Min Xu, Jian-Lin Yao, Ren-Ao Gu
Template Synthesis And Electrochemical Studies Of Ag_(Core)Au_(Shell) Nanowires, Li Ling, Ya-Xian Yuan, Min-Min Xu, Jian-Lin Yao, Ren-Ao Gu
Journal of Electrochemistry
Agcore Aushell nanowires with different thicknesses were prepared by combining template synthesis and chemical reduction method,and characterized by SEM and cyclic voltammetry(CV).The CV results revealed that the AgcoreAushell nanowires with pinhole were transferred to pinhole free structure after several potential scans.By using thiophenol(TP)and p-aminothiophenol(PATP)as probe,the surface enhanced Raman scattering(SERS)effect was investigated on the core-shell nanowires.The results indicated that AgcoreAushell nanowires could be served as a potential SERS substrate,and the difference in the spectral feature of PATP adsorbed onto Au and Ag nanowires enable us to diagnose the pinhole effect of core-shell nanowires by SERS.
The Research Of Several Electrodes For Spe Water Electrolysis, Jian-Bo Meng, Ge Sang, Yan Xue, Wei Cao, Xiao-Qiu Ye
The Research Of Several Electrodes For Spe Water Electrolysis, Jian-Bo Meng, Ge Sang, Yan Xue, Wei Cao, Xiao-Qiu Ye
Journal of Electrochemistry
Performances of the IrRu/Nafion 117/PbAg,IrRu/Nafion 117/Ni,IrRu/Nafion 117/TiNi,Ag/Nafion 117/Ni and C/Nafion 117/PtRu for the SPE water electrolysis have been investigated.The order of the electrocatalysis activity for the anodic electrodes as mentioned above is IrRu>Ag>C,and that of cathodic electrode is Ni>PbAg>TiNi.While the stability of TiNi was much better than Ni,and that of PbAg is best.Moreover,the current efficiency was raised with the increase of current density.
Electrochemical Reduction Of Coals And The Oxygenic Functional Simulacrums Of Coals, Juan Lin, Zhao Wei
Electrochemical Reduction Of Coals And The Oxygenic Functional Simulacrums Of Coals, Juan Lin, Zhao Wei
Journal of Electrochemistry
Electrochemical reduction of coals and the oxygenic functional simulacrums of coals has been studied.In this process,tetrabutylammonium was used as supporting electrolyte.The coal and the deoxidized coal were extracted by methanol.Qualitative analysis of the deoxidized products and the extractives was carried out on gas chromatograph-mass spectrometer.The deoxidized products of the oxygenic functional simulacrums of coals were analysed quantitatively with gas chromatograph spectrometer.The results show that the oxygenic functional groups on the coals surface decrease and the translation ratios of the oxygenic functional simulacrums of coals need further increase after electrochemical reduction,.The electrochemical tests show simultaneously the kinetics equations of every related …
Study On The Electricity Capability Of Ru_((0.4-X))Ir_Xti_(0.6)/Ti Electrode, Ling-Li Wang, Qiao Peng
Study On The Electricity Capability Of Ru_((0.4-X))Ir_Xti_(0.6)/Ti Electrode, Ling-Li Wang, Qiao Peng
Journal of Electrochemistry
The metal oxide anode of Ru(0.4-x)IrxTi0.6 has been prepared by thermal decomposition.The results indicate that,when the percent of IrO2 is 10%,the electrode has low chlorine potential,high oxygen potential and excellent catalyze selectivity;strengthen life is long with IrO2 content increased from 1.0h to 97h.It shows that the electrode anti-oxide corrosion perform is improved and intensifying life is long with addition of IrO2.The film and reaction resistance are all fall with the addition of IrO2.The addition of IrO2 is in favor of thin crystal and makes the film more roughness.
Study On The Characteristics Of Vb_(12) Modified Electrode By Electropolymerization, Hui-Ting Lian, Wen-Ji Wang
Study On The Characteristics Of Vb_(12) Modified Electrode By Electropolymerization, Hui-Ting Lian, Wen-Ji Wang
Journal of Electrochemistry
Preparation of the VB12 modified electrode and its electrochemical characteristics were studied.The results showed that the VB12 after electroactivated is able to electopolymerize on the GC by cyclic voltammetry(CV)in the DMSO solution.Differential pulse voltmmetry(DPV)showed that the VB12 catalyzed the oxidation of NO2-,SO32-and NH2NH2.The catalytic peak for NO2-on the modified electrode was observed at 0.76V(vs.SCE),but on the unmodified GC which at 1.0V.The catalytic currents increased linearly with the concentration of NO2-from 1.6×10-6 to 4.3×10-4 mol·L-1 with a correlation coefficient of 0.9987.The VB12 modified electrode showed excellent stability and high sensitivity to determined the NO2-in the rains and lake waters with a …
Self Assemblying Kinetics Of Sodium Steareate At Castor Oil/Water Interface, Yong-Chun Zhu, Li-Na Tang, Hong-Guo Ji
Self Assemblying Kinetics Of Sodium Steareate At Castor Oil/Water Interface, Yong-Chun Zhu, Li-Na Tang, Hong-Guo Ji
Journal of Electrochemistry
The self assembly membrane(SAM)formation kinetics of sodium stearate at castor oil/water interface was studied by cyclic voltammetrry.At caster oil coated graphite-epoxy solid electrode surface,the SAM grows according to the Gaussian growth function with a rate constant of km=0.0006292(0.0000294)s-1,and maximum particle size at t0=3127s.The SAM of sodium stearate controls the growth and particle size of the deposited copper nano particles well,and forms a composite membrane of the SAM and copper nano particle.The growth mechanism of copper particle at oiled electrode or SAM modified oiled electrode is spherical growth,while it is the semi-spherical growth at bared graphite-epoxy solid phase electrode.Compared with castor …