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Articles 1 - 30 of 67
Full-Text Articles in Physical Sciences and Mathematics
Cyclic Voltammetric Investigation Of The Axial Coordination Effects Of Pyridine On The Redox Behaviours Of (Tpp)Co, Chuanwei Yan, Xiangqui Lin, Haichao Lin, Chunan Cao
Cyclic Voltammetric Investigation Of The Axial Coordination Effects Of Pyridine On The Redox Behaviours Of (Tpp)Co, Chuanwei Yan, Xiangqui Lin, Haichao Lin, Chunan Cao
Journal of Electrochemistry
The electrochemistry of (TPP)Co in presence of pyridine was investigated in dichloroethane solution by cyclic voltammetry. Upon the addition of pyridine to the solution, two reduction peaks of Co(Ⅲ)/Co(Ⅱ) at 0.25 and -0.40 V (SCE) were observed. It was infered that the peaks were belong to the reductions of the complex compounds with one and two axial pyridine, (TPP)Co(Ⅲ)(Py) and (TPP)Co(Ⅲ)(Py)2. Even though the mole ratio of added pyridine was less than 1 the reduction of Co(Ⅲ)/Co(Ⅱ) still mainly occured at -0.40 V, which evidently resulted from pyridine adsorption on the electrodes. Besides, it was observed that the reduction peak …
Development Of A New Type Ni-S Evolution Hydrogen Electrode For Water Electrolysis, Xiaoyou Yuan
Development Of A New Type Ni-S Evolution Hydrogen Electrode For Water Electrolysis, Xiaoyou Yuan
Journal of Electrochemistry
A new type evolution hydrogen electrode NiS(N) has been made from nickel plating electrode in NiSO4CS(NH2)2 bath by electrodeposition. It is analyzed by SEM and Xray energy spectrum. The NiS(N) electrode is different from the NiS(O) electrode (which is used in plant at present time) in surface metallograph configuration and surfer content. The results of measurement polarization curves and water electrolysis 480 hours at 5 000 A·m-2 show that the evolution hydrogen overpotential of NiS(N) electrode is decreased at least 160 mV relative to NiS(O) electrode and the stablisum of NiS(N) electrode is better than that of NiS(O) electrode.
Molten Carbonate Fuel Cell Materials And Technology, Naichao Li, Baolian Yi
Molten Carbonate Fuel Cell Materials And Technology, Naichao Li, Baolian Yi
Journal of Electrochemistry
Molten Carbonate Fuel Cell materials are reviewed, and the technology of Molten Carbonate Fuel Cell are discussed.
Calculation Of The Sacrificial Anode Resistance Utilizing Boundary Element Method, Jianhua Wu, Mingxian Sun, Guangzhou Liu, Guangzhang Chen
Calculation Of The Sacrificial Anode Resistance Utilizing Boundary Element Method, Jianhua Wu, Mingxian Sun, Guangzhou Liu, Guangzhang Chen
Journal of Electrochemistry
According to a kind of mathematic model set up for the cathodic protection potential field, the boundary element method (BEM) was used to study the working state of plate sacrificial anodes which were galvanically coupled to mild steel. In situ experiment showed that the current output and resistance of sacrificial anodes could be calculated more accurately using BEM than loiyd formula. On the basis of the calculation, the cathodic protection design would be more accurate. It was also investigated that the effect of the lengthtobreadth ratio (L/B) on current output and resistance of plate zinc anodes. The results demonstrated that …
The Activity Of Alloy CuNi Electrode In Electroreduction Of Aromatic NitroCompounds, Chunan Ma, Shaoping Tong, Xiaojun Cheng, Hui Wang
The Activity Of Alloy CuNi Electrode In Electroreduction Of Aromatic NitroCompounds, Chunan Ma, Shaoping Tong, Xiaojun Cheng, Hui Wang
Journal of Electrochemistry
CuNi alloy on the basis of copper at different ratio Cu/Ni are prepared by codepostion. The cathode activtiy of film are studied by steadystate polarization for electroreduction nitrobenzene (NB) and 1,5dinitroanthraquinone (1,5DNA) to paminophenol and 1,5diamino4,8dihydroanthraquinone respectly. The results show that the alloy cathodes at different ratio Cu/Ni have different exchange current density (io) and apparent activition energy (EA). The alloy (CN30) has maximal io and minimal EA by codeposition at the following conditions: electrolyte: 0.05 mol/L CuSO4·5H2O+0.6 mol/L NiSO4·6H2O+0.25 mol/L Na3Cit·2H2O; current density: 0.6 A/dm2 , pH=6, temperature at 50 ℃. Compared with the common cathodes such as …
The Effect Of Solution Composition On The Corrosion Behavior Of Electrodeposited Zinc Powder, Qingwen Li, Qin Yang, Xi Xia
The Effect Of Solution Composition On The Corrosion Behavior Of Electrodeposited Zinc Powder, Qingwen Li, Qin Yang, Xi Xia
Journal of Electrochemistry
Zinc powder as a widely anode material can be electrowon from ZnCl2 or ZnO+KOH media. The properties of zinc powder are likely to be modified with electrolytic conditions such as the composition of bath solution, electrolysis manner, current density and additives etc.. In this paper, we have discussed the effect of the compositions of bath solution on the microstructure and corrosion resistance of zinc powder.
Preparation Of High Rate Discharge Foamed Nicd Battery, Yuming Wang
Preparation Of High Rate Discharge Foamed Nicd Battery, Yuming Wang
Journal of Electrochemistry
A novel device of SC type foamed NiCd battery is presented, in which, the innerresistance of battery is appeared to be reduced, and the electrode performance is gained to very improved, and so, this battery can be suited to using of the powerdrive pistol drill.
Advances In Solid Polymer Electrolytes, Liming Ding, Shaojun Dong, Erkang Wang
Advances In Solid Polymer Electrolytes, Liming Ding, Shaojun Dong, Erkang Wang
Journal of Electrochemistry
The formation, classification, applications and iontransport mechanism studies of solid polymer electrolytes were reviewed. While the recent SPE reports on the preparation of novel materials, the full structure determinations of PEO/salt complexes, the exploration of iontransport mechanism and the applications in electrochemical devices being introduced, some prospects on the future SPE research were suggested. 84 references were quoted.
Li/Α-Sn(Hpo4)2 Cell And Its Reaction Mechanism, Yuan Lin, Runliang Cai, Haoqing Wu
Li/Α-Sn(Hpo4)2 Cell And Its Reaction Mechanism, Yuan Lin, Runliang Cai, Haoqing Wu
Journal of Electrochemistry
The discharge mechanism of Li/αSn(HPO4)2 cell has been investigated by means of Xray diffraction, XPS and cyclic voltammetry methodes. It has been shown that the electrochemical intercalation reation exists in the cathode material. There is a new phase after some degree of intercalation. With potential step and galvanostatic techniques, the chemical diffusion cofficients of Li+ in LixSn(HPO4)2 is estimated to be 10-12～10-13 cm2·s-1.
Mechanism Of Electrodeposition Of Cu/Co Multilayer Thin Films, Jiangyun Xue, Jixun Wu, Dejun Yang
Mechanism Of Electrodeposition Of Cu/Co Multilayer Thin Films, Jiangyun Xue, Jixun Wu, Dejun Yang
Journal of Electrochemistry
The mechanism of electrodeposition of Cu/Co multilayer thin films has been studied by means of potentodynamic sweep, cyclic voltammetry sweep and AC impendance. The results indicated that the copper deposition is mass transfer controlled process and the cobalt deposition is related to the absorbed intermediate species such as Co(OH)ads. The cobalt ions first form Co(OH)ads, then was deoxygenated to cobalt on the electrode surface.
Study On The Electrochemical Behaviour Of Eu(Ⅲ) Tryptophane Imidazole Triple Complex, Huixia Wu, Zemin Wang, Xiaqin Wu, Haifeng Yang, Zongrang Zhand
Study On The Electrochemical Behaviour Of Eu(Ⅲ) Tryptophane Imidazole Triple Complex, Huixia Wu, Zemin Wang, Xiaqin Wu, Haifeng Yang, Zongrang Zhand
Journal of Electrochemistry
Eu(Ⅲ)TryptophaneImidazole binary and triple complexes were synthesized. IR spectra indicate that the carboxy group of tryptophane and the N atom of imidazole are coordinated with Eu(Ⅲ) ion. Cyclic voltammetry was used to study the electrochemical behaviour of Eu(Ⅲ) ion, the mixture of Eu(Ⅲ) with tryptophane and imidazole, and Eu(Ⅲ) binary or triple complexes. Among the scan range of -0.4～-1.0 V (vs. SCE), all of these three kinds of systems depicted pseudoreversible electron transfer. The kinetic parameters including D and Ks were also evaluated.
Study On Perchlorate Produced By Electrolysis With Oxygen Cathode, Zhigang Shao, Baolian Yi, Naichao Li, Ming Han
Study On Perchlorate Produced By Electrolysis With Oxygen Cathode, Zhigang Shao, Baolian Yi, Naichao Li, Ming Han
Journal of Electrochemistry
A new method of measuring the flow capacity of cell gas in the perchlorate cell process equipped with an oxygen cathode is applided to investigate the influence of changes in the concentration of solution (chloride, chlorate, perchlorate and metal ion) and changes in the operation parameters (current density, temperature and pH) on perchlorate current efficiency. The main abstacle that the oxygen cathode is used in the perchlorate cell process is put forward and a method is provided to resolve it.
The Initial Process Of Amophous Electroless Nickel, Yi Chi, Lei Zhang, Yijan Wang, Maoyuan Ma
The Initial Process Of Amophous Electroless Nickel, Yi Chi, Lei Zhang, Yijan Wang, Maoyuan Ma
Journal of Electrochemistry
The initial process and mophology of electroless nickel played a domination role in adhesive strenghth of EN coating. The structure of initial deposits on certain matrixes was observed by TEM analysis. The deposition of a extremaly fine grain film depended on relative contrast between a coating and a matrix in crystal lattice parameters. When the coating and matrix had similar srystal lattice parameters. A extremely fine grain film was obtained. On the contrary, when the crystal lattice parameters were very different, a amorphous structure was observed.
Photoluminescence Of Photoelectrochemically Etched N+-Si, Guozheng Li, Chengqian Zhang, Xiumei Yang
Photoluminescence Of Photoelectrochemically Etched N+-Si, Guozheng Li, Chengqian Zhang, Xiumei Yang
Journal of Electrochemistry
PS layer on n+Si with (111) orientation prepered by means of photoelectrochemically etched has photoluminescent (PL) ability like PS layer on usual nSi. The data of PL spectra and quenching are given.
Study On The Oxygen Electrodes Of Alkaline Fuel Cells Effect Of Dopant On The Activity Of Ag/C Catalyst, Jiawei Teng
Study On The Oxygen Electrodes Of Alkaline Fuel Cells Effect Of Dopant On The Activity Of Ag/C Catalyst, Jiawei Teng
Journal of Electrochemistry
A new kind of nonnoble catalyst for the oxygen electrodes of Alkaline Fuel Cells was investigated. The AgNiBiHg/C catalyst, which was prepared by chemical reduction, was active for the cathodic reduction of oxygen in alkaline fuel cells. It was found that the catalytic activity was improved by adding Ni, Bi, Hg to Ag/C catalyst, and the maximum activity was observed at Ag50%Ni2%Bi3%Hg3%C42%(wt%). XRD inconjunction with SEM indicated that the crystalline silver turned into amorphous in the presence of doping agents and the grain size of silver was reduced. No dramatic deactivation of the catalyst occured after 5200 hours of service.
Effect Of Addition Groups On The Redox Properties Of Fullerenes, Louzhen Fan, Yongfang Li, Dagui Li Yuliang Zheng, Daoben Zhu
Effect Of Addition Groups On The Redox Properties Of Fullerenes, Louzhen Fan, Yongfang Li, Dagui Li Yuliang Zheng, Daoben Zhu
Journal of Electrochemistry
Electrochemical properties of fullerene derivatives, including five C60 derivatives and four C70 derivatives, were studied systematically and comparatively by cyclic voltammetry and differential pulse wave voltammetry. The addition of the electrondonating groups on the fullerenes caused negative shift of the redox potentials of the fullerenes. The extent of the negative shift depends on the number and properties of the addition groups, and on the nature of the fullerenes. 0.08～0.20 V negative shift was observed for C60 and C70 monoadducts, 0.30～0.32 V for bisadduct and 0.53～0.58 V for triadduct of C60. Meanwhile, the oxidation waves of most of these derivatives appeared …
The Effect Of Bismuth On Microstructure Of The Cathodic Copper Deposition Of Copper Electrorefining, Daorong Lu, Jianxing Lin
The Effect Of Bismuth On Microstructure Of The Cathodic Copper Deposition Of Copper Electrorefining, Daorong Lu, Jianxing Lin
Journal of Electrochemistry
The electrocrystal formation, crystal orientation and the chemical composition of the cathodic copper deposition in the presence of Bi3+ in the electrolyte of acidified CuSO4 are studies by scanning electron microscopy, Xray diffraction, atomic absorption and EDAM. The results indicate that the Bi could′t deposit on cathode when copper electrolysed at common current density i=200 A·mol/L-2 and t=60 ℃. Bi3+ scarcely effected on the crystal orientation (220) of copper deposition. High concentration Bi3+ in the electrolyte promoted (220) growth and inhibited the other crystal orientation growth. Bi3+ effected on electrocrystal formation and the cell dimension of copper deposition.
Study Of Co(2.5 Nm)/Pt(2.5 Nm) N(N ≥50) Multilayer By Electrocrystallization, Renhe Yin, Weiming Cao, Yanpin Guo, Huifen Ji
Study Of Co(2.5 Nm)/Pt(2.5 Nm) N(N ≥50) Multilayer By Electrocrystallization, Renhe Yin, Weiming Cao, Yanpin Guo, Huifen Ji
Journal of Electrochemistry
The electrocrystallization of Co(2.5 nm)/Pt(2.5 nm) n (n ≥50) multilayer has been carried out under potential control, based on observation of reflection electron microscopy (REM). Monatomic steps on Pt single crystal surfaces have been imaged using a conventional transmission electron microscope in the reflection made. The REM images have revealed three dimintional growth of Co electrocrystallization at high polarization of -1.15 V (vs.Hg/Hg 2SO 4). The structure of the specimen was examined by small or high angle X ray diffration technique. The modulation period of a multilayered structure is 5.0 nm.
Electrical Potential Distribution Around A Charged Colloidal Particle: Nonlinear Integral Equation, Yongxian Qian
Electrical Potential Distribution Around A Charged Colloidal Particle: Nonlinear Integral Equation, Yongxian Qian
Journal of Electrochemistry
The electrical potential distribution around a charged colloidal particle in a solution of general electrolytes is governed by the nonlinear Poisson Boltzmann equation, which is a differential equation and difficult to solve analytically. In this paper we numerically calculate the electrical potential using nonlinear Qian Poisson Bolazmann integral equation (PBIE). First, we introduce the PBIE derived from the physical principles for electrostatic fields and thermodynamic systems. Then the PBIE is numerically solved by means of iteration, in which the discrete potential is solely used. Finally, the accuracy of the numerical solutions proposed here is discussed. The potentials for the colloidal …
Study On The Diffusion Of Electroactive Molecules In Polymer Electrolyte By Microelectrode Voltammetry, Liming Ding, Shaojun Dong, Erkang Wang
Study On The Diffusion Of Electroactive Molecules In Polymer Electrolyte By Microelectrode Voltammetry, Liming Ding, Shaojun Dong, Erkang Wang
Journal of Electrochemistry
The ten years study on the diffusion of electroactive molecules in polymer electrolyte by microelectrode voltammetry was reviewed by considering the development background of polymer electrolyte materials. The classification, fabrication, applications and electrochemical measurements of microelectrode were introduced concisely. The several important factors influencing the diffusion of electroactive molecules were stressed. In the final part of this paper, some new reports on the diffusion of labeled molecules were introduced. 52 references were quoted.
Study On Electrochemical Reactions Of K 4 Fe(Cn) 6 /K 3 Fe(Cn) 6 With Graze Ellipsometry, Shengtao Zhang, Changyuan Tao, Nianbing Li, Zongqing Huang, Chushao Xu
Study On Electrochemical Reactions Of K 4 Fe(Cn) 6 /K 3 Fe(Cn) 6 With Graze Ellipsometry, Shengtao Zhang, Changyuan Tao, Nianbing Li, Zongqing Huang, Chushao Xu
Journal of Electrochemistry
A measurement technology of ellipsometry called graze was put forward. Electrochemical reactions of K 4 Fe(CN) 6 /K 3 Fe(CN) 6 on glass electrode deposited indium oxide were studied with both the graze ellipsometry and cycilic voltammetry. The results indicated that ellipsometric parameter and its change during the electrochemical reactions could be confirmed with graze ellipsometry, and the regularity was corresponding to the process of electrochemical reaction. So study for electrode system could be processed with the graze ellipsometry. The graze ellipsometry could also be applied to analyze properties of diffusion layer and prosthesis limitations of other technologies.
Rechargeability Of Zn Mno 2 In Non Aqueous Electrolyte, Baoqi Li, Hanxi Yan, Mifang Du, Xingping Ai
Rechargeability Of Zn Mno 2 In Non Aqueous Electrolyte, Baoqi Li, Hanxi Yan, Mifang Du, Xingping Ai
Journal of Electrochemistry
A novel Zn MnO 2 battery ststem by use of spinel related MnO 2 as positive electrode and Zn(ClO 4) 2 in propyl carbonate as electrolyte was constructed and its charge discharge behaviour was studied. The results show that the cell reaction of the system proceeds through the electrochemical intercalation of zinc into the crystalline lattice of MnO 2 to form Zn x Mn 2O 4 . At x≤0.5 , Zn x Mn 2O 4 remains its spinel structure stable and exhibits high reversibility for zinc intercalation. As a result, the battery system demonstrates excellent cycleability (>200 cycles), higher …
Preparation Of Pbo 2/Ti Plate Electrode, Zhigang Shao, Baolian Yi, Xinge Zhang, Enjun Zhang
Preparation Of Pbo 2/Ti Plate Electrode, Zhigang Shao, Baolian Yi, Xinge Zhang, Enjun Zhang
Journal of Electrochemistry
The perchlorate was made up of a lead dioxide plate elcetrode and an oxygen cathode. By measuring the flow capacity of cell gas in the cell, and by means of CV、SEM、XRD, the performances of the lead dioxide plate electrodes are evaluated. The influence of changes in the concentrations of electroplating solutions (F 、HNO 3、Bi 3+ 、Ni 2+ 、Fe 3+ and surface active agent) is investigated. The results show that the concentrations of Fe 3+ in the solutions must be lower 0.01 g/l, and the concentrations of HNO 3 in the solutions are about 20 g/l, in order to get better …
Electrocatalytic Oxidation Of Methanol On The Stearate Nickel L B Film, Benzeng Hua, Wenyan Hu, Yanzhen Chen
Electrocatalytic Oxidation Of Methanol On The Stearate Nickel L B Film, Benzeng Hua, Wenyan Hu, Yanzhen Chen
Journal of Electrochemistry
The stearate nickel L B films is good electroacatlyst for the oxidation of methanol MeOH in alkaline. The electrochemical behaviors of stearate nickel L B films is affected by the concentration of KOH. The rate of quantity of mickel ion and stearic acid in L B films is 1∶1, which means that the nickel ion may exist in -COONi(OH) form. The electrocatalytic process is influenced by the concentration of OH - , it involves the penetration of MeOH into the films. The oxidative currents of MeOH are linearly dependent on the bulk concentration.
Corrosion Behaviour Of Copper Covered With Ion Selective Phenolic Coatings By Eis, Zhoucheng Wang, Yingzhou Zhang, Shaomin Zhou
Corrosion Behaviour Of Copper Covered With Ion Selective Phenolic Coatings By Eis, Zhoucheng Wang, Yingzhou Zhang, Shaomin Zhou
Journal of Electrochemistry
Electrochemical impedance spectroscopy(EIS) technique was employed to study the corrosion behaviour of copper painted with the anion selective、 cation selective and bipolar phenolic coatings in 3% NaCl solution. From the impedance spectrum characteristics, the models of equivalent circuit for these different coating systems were established,and the methods for the analysis of experimental impedance diagrams in terms of coating and interface properties were discussed. The research results show that the composition and structure of ion selective coatings have significant influence on corrosion behaviour of copper. The bipolar coating consisting of an anion selective inner layer and a cation selective outer layer …
Study On Electrochemical Methods Of Controlled Convolution ——A Simple Electron Transfer Reaction Followed By A Homogeneous Catalytic Reaction(Ⅰ), Ming Ma, Naixian Xie, Qianlei Gao, Yue Zeng
Study On Electrochemical Methods Of Controlled Convolution ——A Simple Electron Transfer Reaction Followed By A Homogeneous Catalytic Reaction(Ⅰ), Ming Ma, Naixian Xie, Qianlei Gao, Yue Zeng
Journal of Electrochemistry
A simple electron transfer reaction followed by a homogeneous catalytic reaction is studied in this paper by three kinds of controlled convolution electrochemical experimental methods, which are the constant semi integral (CSI), linear semi integral sweep (LSIS) and linear semi differential sweep (LSDS). According to the three methods, the following equations can be obtained: CSI: πmΨ iI 1(τ)-1=ξe θ LSIS: π2bI 2(τ)-1=ξe θ LSDS: 3π8dI 3(τ)-1=ξe θ Where mΨ i=m i/nFAD 1/2 oC * o, b=D 1/2 ov/nFAk 02 C * o, d=cD 3/2 o/nFAk 04 C * o, m i, v and c are constant value of semi integral, …
Surface Modifications Of Carbon Materials Used As Anode Of Lithium Ion Battery Ⅲ. Improvement Of Artificially Imposed Solid Electrolyte Film On Cell Performance, Shuhua Ma, Xiabin Jing, Fosong Wang
Surface Modifications Of Carbon Materials Used As Anode Of Lithium Ion Battery Ⅲ. Improvement Of Artificially Imposed Solid Electrolyte Film On Cell Performance, Shuhua Ma, Xiabin Jing, Fosong Wang
Journal of Electrochemistry
The improving effect of solid electrolyte film artificially imposed on carbon electrode was investigated. The result showed that both the charge/discharge capacity and first charge/discharge efficiency, to a certain extent, were enhanced, and the result also suggested the effectiveness of the substitution of the artificially imposed solid electrolyte film for the inherent passivating film which was formed on the surface of the carbon electrode while inserted in the electrolyte during charging or discharging. The Scanning Electron Microscope result displayed the compact and well defined morphology of the artificially imposed crystalline film.
Investigation On Electro Reduction Behaviour Of Copper Anodic Products In Concentrated Naoh Solutions Ⅱ. Electro Reduction Of Cu(Ⅱ) Products, Jianbo He, Hanhe Chen, Jianxin Lin
Investigation On Electro Reduction Behaviour Of Copper Anodic Products In Concentrated Naoh Solutions Ⅱ. Electro Reduction Of Cu(Ⅱ) Products, Jianbo He, Hanhe Chen, Jianxin Lin
Journal of Electrochemistry
Potentiostatic oxidation potentiodynamic or galvanostatic reduction methods have been used to study the cathodic reduction behaviour of various products anodically formed on the second stage of copper oxidation in concentrated NaOH solutions. Seven cathodic current peaks and the corresponding cathodic potential plateaus are observed on the potentiodynamic E/i curves and the galvanostatic E/t curves, respectively. In the negative potential scan, there are three couples of voltammetric peaks which have been attributed to the formation and reduction of CuO, Cu(OH) 2 and Cu(Ⅱ) ion, respectively. The complicated mechanism for the electro formation of the three Cu(Ⅱ) species are discussed.
Studies On The Failure Modes Of Stationary Vrla Batteries, Yibo Tong, Xiangming Qiu
Studies On The Failure Modes Of Stationary Vrla Batteries, Yibo Tong, Xiangming Qiu
Journal of Electrochemistry
In order to improve the reliability and the quality of stationary valve regulated lead acid (VRLA) batteries, the failure modes of the stationary VRLA batteries which caused by the water loss and the thermal runaway are studied. The water loss may be solved by increasing the Oxygen recombination efficiency, choosing the suitable grid material and the additives of megative paste, decreasing the corrosion of the positive plates. The thermal runaway may be solved by decreasing the inner ohmic resistance of VRLA batteries, improving the outside condition of batteries such as putting into the absorbing heat material between the abtteries etc..
Preparation And Examination Of Planar Type Solid Oxide Fuel Cells, Yi Jiang, Jingwang Yan, Shizhong Wang, Chunying Yu, Wenzhao Li
Preparation And Examination Of Planar Type Solid Oxide Fuel Cells, Yi Jiang, Jingwang Yan, Shizhong Wang, Chunying Yu, Wenzhao Li
Journal of Electrochemistry
The solid oxide fuel cells of planar type(SOFC) have been developed after successfully preparing La 0.8 Sr 0.2 MnO 3 cathodes and Ni YSZ ceramic anodes on YSZ plates and solving the high temperature sealing technical problem. Examination of the single cells fabricated showed that the maximum power output at 950 ℃ for H 2 as fuel and air as oxidant reached 0.12 W/cm 2. It was found that the large polarization overpotential of the Ni YSZ anode and the Ohmic losses of the cells were two main factors responsible for the relative low output power density.