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- Al-Mn alloy (1)
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- Aluminum sacrificial anode (1)
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- Anodic evolution of oxygen (1)
- Anodic formation of Cr_2O ion (1)
Articles 1 - 30 of 58
Full-Text Articles in Engineering
Growth Kinetics And Breakdown Of Passive Films On Rebar Electrodes In Simulated Cement Pore Solution, Wei Chu, Yuanxiang Shi, Baoming Wei
Growth Kinetics And Breakdown Of Passive Films On Rebar Electrodes In Simulated Cement Pore Solution, Wei Chu, Yuanxiang Shi, Baoming Wei
Journal of Electrochemistry
The growth kinetics and breakdown of passive films on REBAR electrodes insimulated cement solution(pH=12.5 and 13.8)have been investigated using in situphotoelectrochemical methods and potential step method. The results show that there are two mainstages in the growth of the film ,with two rate functions characterized by linear relation between thefilm thickness and the direct logarithm of time. There is a sign in laser-scanning photoelectrochemicalmicroscopic image just before the passive film breaks down. The addition of inhibitor NaNO_2changesthe growth kinetics and thickness of the film ,and therefore improves the resistance of pitting corrosioninduced by chloride.
Cyclic Voltammetric Calorimetry Studying The Deposition Of Copper Of Pt Electrodes, Yongchun Zhu, Robin H J Clark
Cyclic Voltammetric Calorimetry Studying The Deposition Of Copper Of Pt Electrodes, Yongchun Zhu, Robin H J Clark
Journal of Electrochemistry
In the present paper,cyclic voltammetric calorimetry has been used to study thedeposition of copper on platinum electrode from LiClO_4 aqueous solution. Cyclic voltammetricthermogram and cyclic voltammetric differential thermogram show that the deposition of copper on theelectrode is an exothermal process with a strong interaction between copper and platinum layer(-3227.0 kJ /mol).The electrochemical oxidation of the deposited copper is composed of twoprocesses :an endothermal activation process with 747.0 kJ/mol of activation enthalpy,and anexothermal oxidation reaction with-189.9 kJ/mol of the reaction enthalpy, which are accord withthe data from the theoritical estimation and thermodynamic handbook respectively.
Fabrication And Electrochemical Behaviors Of Thin Films Of Polyaniline By Langmuir-Blodgett Technique And Electropolymerization, Benzeng Hua, Zhaoxiong Xie, Yanzhen Chen
Fabrication And Electrochemical Behaviors Of Thin Films Of Polyaniline By Langmuir-Blodgett Technique And Electropolymerization, Benzeng Hua, Zhaoxiong Xie, Yanzhen Chen
Journal of Electrochemistry
Hydrogen-bond between stearic acid and aniline in subphase lead to Langmuirmonotayers of stearic acid-aniline,the molecular area of stearic acid-aniline is 26 nm￣2.With surfacepressure increased into 50 mN/M,the hydrogen-bond would be rearranged ,aniline moleculartransales into vertical from horizontal,surface pressure decreased quickly. A new kind of Langmuirmonolayer is formed instead of collapse,it's molecular area decreases into 24 nm￣2 and thicknessincreases with 0.25 nm. After electroreduction of L-B films depeited onto the surface ofSnO_2 electrode ,anilne layers between two stear acid matix could be polymerized into thin films ofpolyanilne.The structu re of thin films has ben studied by small angle X-ray scattering.Theelectrochemical properties …
Study Of The Modified Electrolytic Manganese Dioxide, Guohui Yuan, Dewei Chu, Rihui Shen, Hongwei Pan, Cuifen Zhang
Study Of The Modified Electrolytic Manganese Dioxide, Guohui Yuan, Dewei Chu, Rihui Shen, Hongwei Pan, Cuifen Zhang
Journal of Electrochemistry
A modified electrolytic manganese dioside doped with Bi(Bi-EMD)wasprepared and examined by XRD and XPS.It is predominantly γ-mnO_2 and the Bi exists as Bi_2O_3 inthe modified material.The content of Bi in Bi-EMDs increased with the increasement of Bi￣(3+)concentration in electrolyte,and reached14.3(wt)% from the bath of 0.008 mol·1￣(-1)Bi￣(3+)+ used.Some Zn /Bi-EMD prototype batteries of AA size were assembled,and which cycle life tests showedthat the Bi-EMD has better reversibility.
Catalytic Oxidation Of Methanol On Pt/C-Spe And Ptru/C-Spe Electodes, Aihua Su, Changzhi Li, Gongquan Sun, Ying Zhang, Tianhong Lu
Catalytic Oxidation Of Methanol On Pt/C-Spe And Ptru/C-Spe Electodes, Aihua Su, Changzhi Li, Gongquan Sun, Ying Zhang, Tianhong Lu
Journal of Electrochemistry
Anode catalysts of methanol oxidation for direct methanol fuel cell, pt/C andPtRu/C,were prepared by chemical reduction in this work.The results indicated that the PtRu/Cshowed higher electrocatalytic activity than that of Pt/C. It was explained by XRD and XPS analysesthat the existence of Ru enhanced the catalytic activity for electrochemical oxidation of methanol.
Simultaneous Detection System Combining Studies Of Programmedpotential Step Technique And Time-Resolved Ftir Spectroscopy, Shigang Sun, Xiaoyu Chen, Guoqiang Lu, Wenfeng Lin, Nanhai Li, Shenpei Chen, Hongping Dai, Jiqian Mu
Simultaneous Detection System Combining Studies Of Programmedpotential Step Technique And Time-Resolved Ftir Spectroscopy, Shigang Sun, Xiaoyu Chen, Guoqiang Lu, Wenfeng Lin, Nanhai Li, Shenpei Chen, Hongping Dai, Jiqian Mu
Journal of Electrochemistry
No abstract provided.
A Photoelectrochemical Investigation Of A.C.Modulated Passive Films On 304 Stainless Steel In Weak-Alkaline And Neutral Solution, Tianbao Du, Chunan Cao, Jiakang Yu, Haichao Lin
A Photoelectrochemical Investigation Of A.C.Modulated Passive Films On 304 Stainless Steel In Weak-Alkaline And Neutral Solution, Tianbao Du, Chunan Cao, Jiakang Yu, Haichao Lin
Journal of Electrochemistry
A photoelectrochemical investigation has been carried out on AISI 304 stainlesssteeI AV modulated passive film in 0.1mol/L Na_2B_4O_7 and 0.5 mol/L Na_2SO_4 solution.Photocurrentcurve depends on the potential、passive condition and testing solutions. The results of the measurementsindicate that the photoresponse is determined by the defects in the electronic structure of the films whenthe defects lead to localized states in the bandgap region. It is concluded that the passive film on AISI304 stainless steel is in a highly disordered amorphous state.
The Composition Structure And Corrosion Resistance Of Al-Mn Alloy Plating, Jiaju Guo
The Composition Structure And Corrosion Resistance Of Al-Mn Alloy Plating, Jiaju Guo
Journal of Electrochemistry
The Al-Mn alloy plating was electrodeposition from low temperature molten salts(below 200℃),its chemical composition control,corrosion resistance as well as the relationshipbetween chemical composition and structure were studied.The results indicate that the main effect onchemical composition of Al-Mn alloy plating is Mn ion concentration in molten salts.The Mn contentin the range of 25～40(wt)%, Al-Mn alloy plating has amorphous structure. In 0.5 mol/L H_2SO_4and NaCl solution ,corrosion resistance of the alloy plating is much better.When the alloy hasamorphous structure,corrosion resistance of plating has been remarkably increased.
Studies Of In-Situ Raman Spectroscopy On Deprotonation And Degeneration Of Ppy Films, Jinsong Gao, Jing Chen, Yanzhen Chen, Qi Xue, Zhongqun Tian
Studies Of In-Situ Raman Spectroscopy On Deprotonation And Degeneration Of Ppy Films, Jinsong Gao, Jing Chen, Yanzhen Chen, Qi Xue, Zhongqun Tian
Journal of Electrochemistry
By combining the in-situ Raman spectroscopic technique with the normalelectrochemical measurements ,the behavior and structure of PPY films in neutral or basic solutionswere studied.The oxidized PPY loses protons on the N atoms of pyrrole rings and is deprotonated inthese solutions ,resulting the formation of the quinoid structure. It makes the C=C stretching vibrationbonds of PPY split.Because this quinoid structure can′t be further oxidized ,the PPY becomes moredifficult to be oxidized and less reversible with the increasing of pH value of solutions and the degree ofdeprotonation of PPY. In the strong basic solution ( pH=13),the PPY film is degenerated in thepotential …
Influence Of O-Phenylenediamine On The Catalysis At Hrp Enzyme Electrode In L,4-Dioxane, Hong Chen, Hui-Huang Wu
Influence Of O-Phenylenediamine On The Catalysis At Hrp Enzyme Electrode In L,4-Dioxane, Hong Chen, Hui-Huang Wu
Journal of Electrochemistry
Horseradish peroxidase(HRP)was immobilized by crosslinkage on the glassycarbon electrode to prepare the enzyme electrede ,where the reduction of H_2O_2 was studied in l,4-dioxane media. It was shown that HRP electrode can catalyze the reduction of H_2O_2 without anymedintor,however, as an activator,o-phenylenediamine can promote the bio-catalysis. In thepresence of the activator,the parallel reactions occurred on the enzyme electrode. The workingcondition of the HRP electrede was investigated as the sensors for H_2O_2 and o-phenylenediamine,alsothe influence of water content in organic phase was discussed on the performance of the enzymeelectrode in organic phase.
Study Of The Action Mechanism Of A New Type Additive Sd-1 On The Electrodepositional Process Of Zinc, Huaqiang Wu, Yiqin Yan, Guangming Ni
Study Of The Action Mechanism Of A New Type Additive Sd-1 On The Electrodepositional Process Of Zinc, Huaqiang Wu, Yiqin Yan, Guangming Ni
Journal of Electrochemistry
The action mechanism of a new type additive SD-1 on the electrodepositionalprocess of zinc is reported.The results showed that the additive SD-1 is not electrochemistry activesubstane in the range of adsorption potential at rotating disk electrede surface。 The action of additiveSD-1 on the electredepositional process of zinc is considerated to be fitting in with the diffusion controlmechanism。
Electrochemical Behaviors Of The Loaded Stainless Steel In Dilute Thiosulphate Solution, Changjian Lin, Zude Feng, Fuling Lin, Fayang Wang, Jianguang Tang, Yuanhui Wang
Electrochemical Behaviors Of The Loaded Stainless Steel In Dilute Thiosulphate Solution, Changjian Lin, Zude Feng, Fuling Lin, Fayang Wang, Jianguang Tang, Yuanhui Wang
Journal of Electrochemistry
The electrochemical behavior of l8/8 stainless steel in dilute thiosulphate solutionduring strained loading was studied by various electrochemical techniques and scanning electronmicroscope.It is evidenced that the corrosion activity of stainless steel increased with strained loading.The dynamic process of repassivation ,which may datermine the initiation ,the cease and developmentof the stress corrosion cracking for stainless steel ,was strongly influenced by both electrochemical andloading conditions. Pitting corrosion may locate preferentially on the sites which was suffered mostloading.The propagation of pitting corrosion of stainless steel may induce stress corrosion crakingunder certain conditions.
Electrodeposition Of Cobalt And Rare Earth-Cobalt In Urea-Nabr-Kbr Melt, Qiqin Yang, Kairong Qiu, Derong Zhu, Lichang Sa
Electrodeposition Of Cobalt And Rare Earth-Cobalt In Urea-Nabr-Kbr Melt, Qiqin Yang, Kairong Qiu, Derong Zhu, Lichang Sa
Journal of Electrochemistry
No abstract provided.
The Photoelectrochemical Studies Of Passive Films On Rebar Electrodes In Simulated Cement Pore Solution, Wei Chu, Yuanxiang Shi, Baoming Wei
The Photoelectrochemical Studies Of Passive Films On Rebar Electrodes In Simulated Cement Pore Solution, Wei Chu, Yuanxiang Shi, Baoming Wei
Journal of Electrochemistry
The electronic properties of the passive film on REBAR electrodes in simulatedcement pore solution(pH=9.0～13.8)have been investigated using in-situ photoelectrochemicalmethods.The results show that the passive film is composed of mixed oxides of ferrum ,and it is anamorphous,n-type semiconductive film. Variations of pH values,ions in the solution and film-formation potentials can affect the composition of the films. There are two main stages in the growthof the film,with two rate functions characterized by linear relation between the film thickness and thelogarithm of time.The addition of inhibitor NaNO_2 changes the composition,structure and growthkinetics of the film,and therefore improves the resistance of pitting corrosion induced …
Study On The Surface States Of Zinc Sulfide Thin Film Doped With Erbium And Their Effect On The Relaxation Luminance, Yujiang Wang, Zhaohong Liu, Zhenxiang Chen
Study On The Surface States Of Zinc Sulfide Thin Film Doped With Erbium And Their Effect On The Relaxation Luminance, Yujiang Wang, Zhaohong Liu, Zhenxiang Chen
Journal of Electrochemistry
X-ray photoelectron spectrum and characteristics of the capacity,versus thevoltage of the thin film devices are measured to study the surface states of the zinc sulfide thin film.The transient electroluminescence excited by pulses shows the relaxation luminance peaks during anon-exponential decay process of the characteristic transitions activated by Er￣(3+) in the ZnS directcurrent thin film electroluminescence (DCTFEL) devices.The surface structures of ZnS:Cu,Cl,Erfilm with the absorption of oxygen,and the effect of the surface states on the relaxation luminance ofthe devices are discussed.
Properties Of Zr-Based Laves Phase Hydrogen Storage Electrode, Xueping Gao, Huabin Yang, Deying Song, Yunshi Zhang, Zuoxiang Zhou, Wei Zhang, Panwen Shen
Properties Of Zr-Based Laves Phase Hydrogen Storage Electrode, Xueping Gao, Huabin Yang, Deying Song, Yunshi Zhang, Zuoxiang Zhou, Wei Zhang, Panwen Shen
Journal of Electrochemistry
After treated by HF solution,the surface of Zr(V_(0.2)Mn_(0.2)Ni_(0.54)Mo_(0.06))_(2.4) alloywas transformed from Zr-rich and Mn-rich layer to Ni-rich layer.In this way,the nickel on thesurface could be believed to be the Raney-type nickel, which could obviously shorten the activationcycles,improve electrocatalytic activity and hydrogen adsorption ability.In this paper,the reactionmechanism on the alloy surface(i.e. the mechanism of nickel-catalysis,hydrogen-adsorption andhydrogen-transference)had been investigated.And the impedance spectra were fitted to an equivalentcircuit using a non-linear,least-squares(NLLS)fitting program.
A Relativistic Density-Functional Investigation Of Vibrational Frequencies Of Cn￣- On Cu And Ag Electrodes, Mengsheng Liao, Xin Lv, Qianer Zhang
A Relativistic Density-Functional Investigation Of Vibrational Frequencies Of Cn￣- On Cu And Ag Electrodes, Mengsheng Liao, Xin Lv, Qianer Zhang
Journal of Electrochemistry
Abstract Potential Dependence,Vibrational Frequency,copper-electrode,Silver-electrode,Relativistic density-functional calculationAcknowledgements This work was supported by the National Natural Science Foundationof China and ChinaPostdoctoral Science Foundation.
Problems On The Study Of Anodic Films On Pb In Sulfuric Acid Solution(Ⅰ), Wenbin Cai, Houtian Liu, Weifang Zhou
Problems On The Study Of Anodic Films On Pb In Sulfuric Acid Solution(Ⅰ), Wenbin Cai, Houtian Liu, Weifang Zhou
Journal of Electrochemistry
The identification of the phase composition of the anodic film on Pb formed inH_2SO_4 solution in PbO potential region has long been argued,together with the explanation of thecathodic peak at about -0.9V(Hg/Hg_2SO_4)in the linear sweep voltammogram for a Pb-H_2SO_4system. In this article, a review of our recent investigations was presented on the above problems.
Progress In R&D Of Lithium Rechargeable Batteries In China, Jiqiang Wang
Progress In R&D Of Lithium Rechargeable Batteries In China, Jiqiang Wang
Journal of Electrochemistry
No abstract provided.
Theory Of Cyclic Voltammetry At Microdisk Electrode For Reversible Systems, Qiankun Zhuang, Hongyuan Chen
Theory Of Cyclic Voltammetry At Microdisk Electrode For Reversible Systems, Qiankun Zhuang, Hongyuan Chen
Journal of Electrochemistry
By means of a new approach,the current equations of cyclic voltammetry whichdescribes two cases of quasi-steady-state and fast linear scan at microdisk electrode for reversiblesystem were presented and verified experimentally. It has been shown that the features of this currentessentially depend on the ration of,which is described in detail.ln extreme cases, the equationsare the same as those listed in literat ures for large plane and spherical electrodes.Using the quasi-steady-state equation,the causes and conditions for forming steady state,quasi-steady state andhysteresis current for linear sweep voltammetry are all explained and discussed.The width of the″hysteresis ring″is also calculated in this work.And the results …
Studies On The Structure Of Licoo_2 Synthesized With Tartaric Acid And The Behaviorof Its Rechargeable Lithium Battery, Fuping Zhang
Studies On The Structure Of Licoo_2 Synthesized With Tartaric Acid And The Behaviorof Its Rechargeable Lithium Battery, Fuping Zhang
Journal of Electrochemistry
The structure of LiCoO_2 synthesized with tartaric acid and the behavior of itsrechargeable Lithium battery have been studied by XRD, XPS, CV. CT. It has been shown thatLiCoO_2 has a space group R3m with hexagonal parameters a=0.281 0 nm,c=1.408 8 nm. Low-spin state Co￣(3+) configuration in LiCoO_2 has been suggested. Also,Li_2O, was identified onits surface.Furthermore, the capacity and the middle working voltage of its Lithium battery are about 120 mA·h·g￣(-1) and 3.8 V,respectively.The EMF of the cell changes with the Lithium composition of itscathode following E=4.318-0.450 X￣(2/3) in 0.451≤X≤0.934.
The Oxidation Of Hydrogen Absotbing Alloys And Its Inhibition, Suqin Wang, Baojia Xia, Geping Yin, Pengfei Shi
The Oxidation Of Hydrogen Absotbing Alloys And Its Inhibition, Suqin Wang, Baojia Xia, Geping Yin, Pengfei Shi
Journal of Electrochemistry
This paper introduces the method to judge:1)the possibility of oxidation of themetal hydride electrode in an anode process by cyclic voltammetric curves,2)the oxidation pattern ofmetal hydride electrode in oxygen atmosphere in various charged states,and 3)the inhibition ofoxidation of hydrogen absorbing alloys by certain surface treatment.
Self-Assembled Monolayers:Preparation,Properties And Application, Xiandui Dong, Juntao Lu, Chuansin Cha
Self-Assembled Monolayers:Preparation,Properties And Application, Xiandui Dong, Juntao Lu, Chuansin Cha
Journal of Electrochemistry
Self-assembling technique is a versatile approach to the preparation of monolayersof well-defined composition,structure,thickness and physicochemical properties.Different aspects,such as wettability,adhesion,corrosion,tribology,electrontransfer,protein adsorption,molecularrecognition,and applications of SAMs are widely studied.The developments in the last decade arereviewed,with special attention to the electrochemical studies related to electrodes modified with thiol-derivative-based SAMs
Coadsorption Of Para-Toluene Sulfamide And 1.4-Butynediol At Mercury Electrode, Shukun Huang, Naixian Xie, De Gao, Qiang Liu
Coadsorption Of Para-Toluene Sulfamide And 1.4-Butynediol At Mercury Electrode, Shukun Huang, Naixian Xie, De Gao, Qiang Liu
Journal of Electrochemistry
The coadsorption characteristics of para-toluene sulfamide and 1,4-butynediol atmercury electrode have been studied by means of electrocapillary curve,differential capacity curve,Stuart model and the SCFMO method(CNDO/2).The coadsorption is a physical adsorption occuringnaturally. Lateral and flat orientations in the two adsorbates close to their maximum adsorptionpotential were considered respectively.Unlike attractive interactions of their own,there was arepulsive interaction at their coadsorption layer.A preferred adsorption of 1,4-butynediol occurredWhen they were at the same volume concentration.
Studies On The Bright Zinc-Nickel Alloy Palting In Alkaline Baths, Jiale Cai, Shaomin Zhou
Studies On The Bright Zinc-Nickel Alloy Palting In Alkaline Baths, Jiale Cai, Shaomin Zhou
Journal of Electrochemistry
The electrochemical properties of the Zn-Ni plating baths and the structure andperformance of the obtained deposits were investigated.The results show that the nickel content of theobtained deposits is incereased with decreasing of Zn￣(2+)/Ni￣(2+) ratio in the baths and with increasing ofcathodic current density;The cathode current efficiency is increased with increasing of Zn [Ⅱ]content in the bath and with decreasing of cathodic current density.The ZN-11 additive used is thereaction product of heterocyclic compound and polyamines with epichlorohydrin,it has a higheradsorptivity on Hg-electrede at potential between -0.16～-1.68 V (vs. Hg/HgO,1 mol·L￣(-1)KOH). It is found that zinc and nickel are codeposited anomalously due …
Studies Of Cl￣- On The Electrochemical Oscillation Behaviour Of Electrodeposited Silver Indium Selenide Thin Films By Using Dynamic Impedance And The Condensance Method, Shaoai Xie
Journal of Electrochemistry
The electrochemical oscillation behaviour of hydrogen peroxide cathodic reductionprocess on the electrodeposited silver indium selenide electrode has been studied by using in-situdynamic impedance and the condensance measurement technique in different supporting electrolytessolutions.The surface composition of AglnSe_2 electrodes(before and after oscillating)were also givenby AES. According to the experimental results,the influence of Cl￣- on the mechanism of thiselectrochemical oscillaton process has been discussed in detail.
Effect Of Symmetric Alternating Current On Cathode Surface Before Iron Deposition, Xintan Hu
Effect Of Symmetric Alternating Current On Cathode Surface Before Iron Deposition, Xintan Hu
Journal of Electrochemistry
The composition and thickness of active film formed on the surface of cathodemade of low carbon steel after treated by symmetric alternating current(SAC)in ferris chloride bathis studied,and the interfacial morphology of the iron deposit and the substrate is also examined.Theresults show that the active film,which a thickness of 20～25nm can be obtained under SAC densityof about 7A dm￣(-2) ,so that the adherent iron deposit can be achieved on the active film. The effect ofSAC on cathode surface is discussed in detail.
The Influnce Of Conjugated Π Bond In Promoter Molecule On The Direct Electrochemical Reaction Of Cytochrome C, Xiaogang Qu, Tianhong Lu, Shaojun Dong
The Influnce Of Conjugated Π Bond In Promoter Molecule On The Direct Electrochemical Reaction Of Cytochrome C, Xiaogang Qu, Tianhong Lu, Shaojun Dong
Journal of Electrochemistry
The promoter effect of thiophene with only one-functional group on the directelectrochemical reaction of cytochrome c was compared with that of tetrahydrothiophene in this report.It was found that thiophene is a good promoter.But tetrahydrothiophene could not facilitate the directelectrochemistry of cytochrome c although this compound is very similar to thiophene in str uctureexcept for conjugated π bond.This demonstrated that the conjugated π bond in thiophene plays animportant role for the acceleration of the direct electrochemistry of cytochrome c.
Development Of High Active Aluminum Alloy Sacrificail Anode, Zhaobo Wei, Jianhua Wu, Guangzhang Chen, Songrao Jiang
Development Of High Active Aluminum Alloy Sacrificail Anode, Zhaobo Wei, Jianhua Wu, Guangzhang Chen, Songrao Jiang
Journal of Electrochemistry
A high active aluminum alloy sacrificial anode with the operating potential-1.40 v (SCE),and the the current capacity more than 2 175 A·h/kg and dissolution fair issuccessfully developed by adding zinc,indium,gallium,bismuth and heat treatment.The aluminumalloy sacrificial anode with super electrochemical properties can throughly replace the magnesium alloyanode when applied to seawater and freshening seawater,which is obviously advantageous to thetechnology and economy.
Photoelectric Property For Zinc Phthalocyanine Of Doping C_(60) On Inp Electrode, Mengxiong Zhan, Rongqing Yu, Biaolian Zhen, Dadian Cheng, Lansun Zheng
Photoelectric Property For Zinc Phthalocyanine Of Doping C_(60) On Inp Electrode, Mengxiong Zhan, Rongqing Yu, Biaolian Zhen, Dadian Cheng, Lansun Zheng
Journal of Electrochemistry
The curves of spectral and photovoltaic responses to zinc phthalocyanine of dopingC_(60) were determinted.The photovoltaic property for zinc phthalocyanine of doping C_(60) wereinvestigated on the InP single crystal in the photoelectrochemical cell.The results have shown that:1)The photovoltaic effect and the in tensit ies of the spectral response and of the photovoltaic responsefor ZnPc of doping C_(60) were greater than those of ZnPc;2)had better redox couple in the cells.