Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Chemistry (65)
- Engineering (59)
- Materials Science and Engineering (57)
- Engineering Science and Materials (52)
- Electrical and Computer Engineering (34)
-
- Power and Energy (34)
- Catalysis and Reaction Engineering (19)
- Chemical Engineering (19)
- Nanoscience and Nanotechnology (12)
- Analytical Chemistry (8)
- Applied Mathematics (1)
- Applied Mechanics (1)
- Computational Chemistry (1)
- Condensed Matter Physics (1)
- Mechanical Engineering (1)
- Other Applied Mathematics (1)
- Other Chemistry (1)
- Other Mechanical Engineering (1)
- Physics (1)
- Semiconductor and Optical Materials (1)
- Institution
- Keyword
-
- Cathode (2)
- Concrete (2)
- Electrochemistry (2)
- Electrodeposition (2)
- Lithium ion battery (2)
-
- Microelectrode (2)
- Polymer electrolyte (2)
- Reinforcing bar (2)
- Abnormal infrared effects (1)
- Active passive transition (1)
- Adenine (1)
- Adsorbed intermediate (1)
- Adsorption of CO (1)
- Air electrode (1)
- Alumina template method (1)
- Aluminium (1)
- Aluminum cathode (1)
- Anode (1)
- Anode supported (1)
- Argentine electrode (1)
- Array electrode (1)
- Artificial Defect (1)
- Bistability (1)
- CO prob (1)
- CO tolerant catalysts (1)
- CV experiment (1)
- Cadmium chalcogenide (1)
- Carbon nanotube (1)
- Carbon nanotubes(CNTs) (1)
- Cathode material for lithium ion batteries (1)
- Publication
- Publication Type
Articles 1 - 30 of 66
Full-Text Articles in Materials Chemistry
Electrochemical Hydrogen Storage Properties Of Carbon Nanotubes, Xue Qin, Xue Ping Gao, Feng Wu, Hong Liu, Ying Lan, Hua-Tang Yuan, De Ying Song, Pan Wen Shen
Electrochemical Hydrogen Storage Properties Of Carbon Nanotubes, Xue Qin, Xue Ping Gao, Feng Wu, Hong Liu, Ying Lan, Hua-Tang Yuan, De Ying Song, Pan Wen Shen
Journal of Electrochemistry
The electrochemical properties of carbon nanotubes (CNTs) electrode have been investigated in this paper. The high discharge capacity of 200 mAh·g 1 was measured for the CNTs Ni electrode at a discharge density of 200 mA·g 1 . CNTs Ni electrode, the high electrochemical activity and the long cycle life were observed. The electrochemical mechanism of hydrogen adsorption and oxidation at the CNTs Ni electrode was studied by cyclic voltammertry method.
A Study Of Monitoring Corrosion Of Metal Via An Optic Waveguide Sensing Method, Xue Ming Li, Wei Ming Chen, Shang Lian Huang, Na Zhang, Zong-Qing Huang
A Study Of Monitoring Corrosion Of Metal Via An Optic Waveguide Sensing Method, Xue Ming Li, Wei Ming Chen, Shang Lian Huang, Na Zhang, Zong-Qing Huang
Journal of Electrochemistry
An optical wave guide sensing method was proposed for monitoring corrosion of metal in outdoors steel structures. Replacing the cladding of wave guide with metal film in a particular location, the method takes the metal film as the corrosion sensitive film. The experiment of waveguide sensor was carried out on a 721 colorimetric vessel, with which the soution is held in itself and the light is propagated in its sidewall. A Fe C alloy film was electroplated onto the inner sied of vessel to form the corrosion sensitive film. The structure of the Fe C alloy film was studied by …
Template Synthesis Of Nano-Structured Electrode Materials And Its Electrochemical Performance, Jian Zhao, Quan Yong Gao, Yong Yang, Zu-Geng Lin
Template Synthesis Of Nano-Structured Electrode Materials And Its Electrochemical Performance, Jian Zhao, Quan Yong Gao, Yong Yang, Zu-Geng Lin
Journal of Electrochemistry
In this letter, various nano structured materials such as spinel LiMn 2O 4 nanotubes/nanowires and carbon nanotubes have been prepared by using porous alumina template. The prepared template and materials have been characterized by AFM and TEM techniques. It is shown that size of the nanotubes can be conveniently controlled by using template method. Some preliminary results of cyclic voltammetry about nano structured LiMn 2O 4 are also reported.
The Memory Effect Of Mh-Ni Battery, De Ming Xie, Jian Ming Wang, Jian Qing Zhang, Chu-Nan Cao
The Memory Effect Of Mh-Ni Battery, De Ming Xie, Jian Ming Wang, Jian Qing Zhang, Chu-Nan Cao
Journal of Electrochemistry
The memory effect of MH Ni battery was investigated. The depth of discharge, discharge rate and cycle number influence the memory effect greatly. A few completely full charge/discharge cycles could eliminate it. The existence of the memory effect had nothing to do with zinc element. During the course of life cycling at low DOD (degree of discharge),the smaller the discharge current was, the lower was the maximum charge voltage. In addition, discharge voltage and discharge capacity drop fast at the beginning, gradually leveled off at about a value. If the discharge current was increased, the discharge capacity was obviously less …
Effect Of High Concentration Lithium Bromide Solution On Electrochemical Behavior Of Low Alloy Steel At High Temperature, Jian-Wei Guo, Cheng Hao Liang
Effect Of High Concentration Lithium Bromide Solution On Electrochemical Behavior Of Low Alloy Steel At High Temperature, Jian-Wei Guo, Cheng Hao Liang
Journal of Electrochemistry
By electrochemical measurements and weight loss experiments, the effect of MoO 4 2- on low alloy steel's electrochemical behaviors was investigated at high temperature in 55%LiBr+0.07 mol/L LiOH solution. The results showed that MoO 4 2- ,as an anodic inhibitor, formed passive film rapidly and impeded both anodic and cathodic procedures. Moreover, Na 2MoO 4 prevented corrosion effectively in 55%LiBr+0.07 mol/L LiOH solution when its concentration is more than 200 mg/L. The pitting potential increased accompanying to the arising of Na 2MoO 4 concentration.Some elements of alloy strengthened resistance to corrosion, shch as chromium and nickel, but aluminum promoted corrosion. …
The Development Of Carbon Monoxide Tolerant Catalysts For Proton-Exchange Membrane Fuel Cell, Zhong Jun Hou, Hong Mei Yu, Bao Lian Yi, Ming Han
The Development Of Carbon Monoxide Tolerant Catalysts For Proton-Exchange Membrane Fuel Cell, Zhong Jun Hou, Hong Mei Yu, Bao Lian Yi, Ming Han
Journal of Electrochemistry
High over potential of proton exchange membrane fuel cell(PEMFC) anode caused by carbon monnoxide poisoning when reformate or methanol is used as fuel is main obstacle to the high performance of PEMFCs.Using carbon monoxide tolerant catalysts is the most hopeful way to solve the CO problem.The CO poisoning problem is reviewed briefly in this paper,and the development of CO tolerant catalysts is introduced in details, including electrocatalysts activity, preparation method and mechanism of tolerance to CO.Mo and W can improve catalysts' CO tolerance.Multi component catalysts are expected to be more tolerant to CO.
Study On Electrodeposition Of Ingaas Thin Film, Yu Chun Li, Xi Lian Wang, Jing Ke Han, Ai-Zhen Han, Yuan-Kai Gao, Zhi-Wei Yang
Study On Electrodeposition Of Ingaas Thin Film, Yu Chun Li, Xi Lian Wang, Jing Ke Han, Ai-Zhen Han, Yuan-Kai Gao, Zhi-Wei Yang
Journal of Electrochemistry
The principle and the experimental method of the electrodeposition are discribed in detail in this paper.InGaAs thin film was prepared by using optimized electrodeposited conditions. The radiative wave length of the film was between 1.3～1.5 μm, the composition of the film was analyzed by energy spectrometer and the transmission spectrum of the film was measured by spectrophotometer and monochromator. The V I chractristic of the conductive type and the topography of the In x Ga 1 x As film were also studied.
Studies Of Electrochemical Impedance Spectroscopy On Coated Steel With Artificial Defect, Zhi Gang Zhang, Zhi Jun Gu, Yong Gui Liao, Qi-Long Guo, Fang-Teng Su, Yan-Zhen Chen
Studies Of Electrochemical Impedance Spectroscopy On Coated Steel With Artificial Defect, Zhi Gang Zhang, Zhi Jun Gu, Yong Gui Liao, Qi-Long Guo, Fang-Teng Su, Yan-Zhen Chen
Journal of Electrochemistry
Electrochemical Impedance Spectroscopy (EIS) was applied to rapidly evaluate the performance of organic coatings and the characterization of the protective properties of anticorrosive pigments in the presence of artificial defect in organic coatings. The results showed that artificial defect method can rapidly evaluate the performance of coatings and discriminate whether the pigments in the coatings have inhibitive.
A Study Of The Adsorption Behaviors On The Surface Of Gold Electrode By In-Situ Electrochemical Raman Spectroscopy, Xia Qin Wu, Xiao Wei Cao, Zhe Su Wang, Xiao-Yun Meng, Zong-Rang Zhang
A Study Of The Adsorption Behaviors On The Surface Of Gold Electrode By In-Situ Electrochemical Raman Spectroscopy, Xia Qin Wu, Xiao Wei Cao, Zhe Su Wang, Xiao-Yun Meng, Zong-Rang Zhang
Journal of Electrochemistry
The results of in situ measurements with Raman spectroelectrochemical thchnique on bare gold electrode and adenine modified gold electrode were reported. The adsorption behaviors of adenine and superoxide dismutase(SOD) and their interactions with gold electrode were analyed. The mechanism of promoted electron transfer process of SOD in the presence of adenine at gold electrode surface is discussed.
Forming And Mechanism Of Chitosan Coating On Aluminum Cathode By Electrophoresis, Xi Zhang, Shao Hui Wu, Ying Chu Tao
Forming And Mechanism Of Chitosan Coating On Aluminum Cathode By Electrophoresis, Xi Zhang, Shao Hui Wu, Ying Chu Tao
Journal of Electrochemistry
The electrophoretic deposition behavior and the corresponding coating mechanism were investigated. The influencing factors, such as cell potential, CS concentration, pH value of solution, temperature and supporting electrolytes, on coating were researched. The coating morphology was characterized by XRD and SEM. The mechanism of electrophoretic deposition in CS solution was discussed.
The Study Of Pretreatment For The Determination Of The Conventional Anion In Sea Water By Ic——The Method Of Electrolysing Argentine Electrode, Lei Guo, Wei Yang, Rong Zong Hu
The Study Of Pretreatment For The Determination Of The Conventional Anion In Sea Water By Ic——The Method Of Electrolysing Argentine Electrode, Lei Guo, Wei Yang, Rong Zong Hu
Journal of Electrochemistry
The method of pretreatment to determine trace amounts of Br ,NO 3 and SO 4 2 in sea water by ion chromatography was proposed, by which the electrolysing argentine electrode was used to minimize the disturbance of Cl -. The results indicate that the method is simple, convenient, quick and efficient with recovery rates over 95 percent.
Studies Of Adsorption And Oxidation Of Ethanol On Nm-Pt/Gc Electrode——I.Cyclic Voltammograms And In-Situ Ftir Spectroscopy In Alkaline Media, Guo-Lian Chen, Shi-Gang Sun, Sheng-Pei Chen, Zhi-You Zhou
Studies Of Adsorption And Oxidation Of Ethanol On Nm-Pt/Gc Electrode——I.Cyclic Voltammograms And In-Situ Ftir Spectroscopy In Alkaline Media, Guo-Lian Chen, Shi-Gang Sun, Sheng-Pei Chen, Zhi-You Zhou
Journal of Electrochemistry
The electro_oxidation of ethanol on nm_Pt/GC electrode in alkaline solutions containing 0.02 mol·L -1 NaOH+0.1 mol·L -1 CH 3CH 2OH was investigated by using cyclic voltammetry and in_situ FTIR spectroscopy. The experimental results demonstrated that the main product of ethanol oxidation is CH 3COO -,only very small amount of CH 3CHO has been determined simultaneously. In contrast with the dual path reaction mechanism for the oxidation of ethanol in acid media,the oxidation of ethanol in alkaline media didn't pass through the dissociative adsorption,and no adsorbed species could be determined even using a nm_Pt/GC electrode that gives rise to enhancement of …
Electrochemical Polymerization Of Biphenyl And P-Terphenyl In Organic Solvent, Sheng Cui, Yun Yun
Electrochemical Polymerization Of Biphenyl And P-Terphenyl In Organic Solvent, Sheng Cui, Yun Yun
Journal of Electrochemistry
Polymers were prepared by oxidation of biphenyl and p terphenyl by consecutive cyclic voltammetry and at a constant potential in rigorously dried dichloromethane solutions. In situ studies on the polymerization properties and deposited polymer were also proceeded employing electrochemical quartz crystal micro balance, spectroelectrochemical measurements. The great mass deposition was observed as the biphenyl and p terphenyl monomers are oxidized indicating that polymers were formed by the oxidation of biphenyl and p terphenyl in the solution and then deposited on the platinum electrode surfaces. Polymerization can be further confirmed by the red shifts of spectra observed by spectroelectrochemical measurements. The …
Investigation Of A Complex Lithium Cobalt Nickel Oxide As Lithium Ion Battery Cathode Materials Prepared By A New Citrate Sol-Gel Method, Jing-Li Han, Qing Guo Liu
Investigation Of A Complex Lithium Cobalt Nickel Oxide As Lithium Ion Battery Cathode Materials Prepared By A New Citrate Sol-Gel Method, Jing-Li Han, Qing Guo Liu
Journal of Electrochemistry
The synthesis and electrochemical characteristics of lithium cobalt nickel oxide as cathode materials for rechargeable lithium batteries were investigated. It was clarified from these investigations that lithium cobalt nickel oxide has been produced from basic cobalt carbonate,basic nickel carbonate, lithium carbonate, and citrate. LiNi 0.8 Co 0.2 O 2 prepared under the stream of oxygen gas showed a higher cycling capacity of (～190 mAhg 1 ).
A New Method For The Preparation Of The Electrodes With Very Low Platinum Loading Used In Proton Exchange Membrane Fuel Cell, Zhi-Gang Shao, Bao-Lian Yi, Ming Qiao Ya-Guang Han, Hao Liu, Jing-Rong Yu
A New Method For The Preparation Of The Electrodes With Very Low Platinum Loading Used In Proton Exchange Membrane Fuel Cell, Zhi-Gang Shao, Bao-Lian Yi, Ming Qiao Ya-Guang Han, Hao Liu, Jing-Rong Yu
Journal of Electrochemistry
Research and development on low platinum loading electrode is very important in reducing the cost of proton exchange membrane fuel cell(PEMFC)stack.This paper has put forward a new method to prepare the electrode of PEMFC. The pore forming substances were used in this methd. The low platinum loading electrodes (0.02 mgPtcm -2 )have already been prepared with the method. Compared with the traditional method, the new method is simple, cheep, and easy to scale up. The superior composition of the electrodes is catalyst: pore forming substance: Nafion= 331. The performance of a single cell using this kind of electrodes and Nafion …
Electrochemical Characteristics Of Sb Irreversibly Adsorbed On Pt(100), Pt(110), Pt(111) And Pt(320) Electrodes, Yi Yun Yang, Zhi You Zhou, Qi Hui Wu, Shi Gang Sun
Electrochemical Characteristics Of Sb Irreversibly Adsorbed On Pt(100), Pt(110), Pt(111) And Pt(320) Electrodes, Yi Yun Yang, Zhi You Zhou, Qi Hui Wu, Shi Gang Sun
Journal of Electrochemistry
The electrochemical behaviors of irreversibly adsorbed antimony on Pt(100), Pt(110), Pt(111) and Pt(320) were studied by using cyclic voltammetry. The results revealeds that the Sb adatoms are stable on Pt(100), Pt(110), Pt(111) and on Pt(320) when electrode potentials are below 0.45 V(SCE) and 0.40 V, respectively. It was demonstrated that various coverages of Sb ad can be conveniently obtained by controlling the number of potential cycling and varying the upper limit of potential scan. The electrochemical behaviors of irreversibly adsorbed antimony varied with the surface atomic arrangement of Pt single crystal electrodes. Based on quantitative results of the relationship between …
Mechanisimic Study Of Fes Electrode Process, Cong-Sheng Guan, Shu-Zhen Duan
Mechanisimic Study Of Fes Electrode Process, Cong-Sheng Guan, Shu-Zhen Duan
Journal of Electrochemistry
The mechanism of FeS electrode process has been investigated by using linear cyclic voltammetry. The electrode porcess of FeS is accompanied with the formation and dissolution of insoluble FeS and controlled by ohmic resistance. The peak currents and potentials on the cyclic voltammograms are dependent lineally on the square root of the scan rates. According to this, an ohmic resistance controlling model of FeS electrode has been put forward, and the relative functions between peak currents or potentials and scan rates have been deduced. The theoretical deduction is corresponding to the results of the experiments.
Cathodic Indirect Oxidation Of Organic Compounds(Ⅱ)——Cathodic Indirect Epoxidation Of Olefine, Xue Ying Zhang, Bao Qiu Cui, Deng Ping Gu, Wei Li
Cathodic Indirect Oxidation Of Organic Compounds(Ⅱ)——Cathodic Indirect Epoxidation Of Olefine, Xue Ying Zhang, Bao Qiu Cui, Deng Ping Gu, Wei Li
Journal of Electrochemistry
We described a novel cathodic indirect epoxidation system in which O 2 was first cathodically reduced to H 2O 2. Then VO(acac) 2 was oxidized by H 2O 2 homogeneously to VO(acac) 2OOH which was used to epoxidize some olefine such as maleic, fumaric and crotonic acids. Many affecting factors on the current efficiency were optimized. The research will contribute to the developments of organic electrosynthesis.
The Study On Lithiated Titanium Composite Oxides As Negative Electrode For Lithium-Ion Battery, Xiao-Yan Yang, Shou-Nan Hua, Shu-Yong Zhang
The Study On Lithiated Titanium Composite Oxides As Negative Electrode For Lithium-Ion Battery, Xiao-Yan Yang, Shou-Nan Hua, Shu-Yong Zhang
Journal of Electrochemistry
Lithiated titanium composite oxides Li 4Ti 5O 12 were prepared from Li 2CO 3 and TiO 2. The XRD results of this composite oxides indicated that the compound had a spinel structure. The electrochemical behavior of lithiated titanium composite oxides was examined. The results showed that this material had an excellent cyclic capability and reversibility for lithium insertion, and had high specific capacity: the initial discharge capacity was 300 mAh·g -1 , and the reversible capacity was 100 mAh·g -1 . The discharge plateau (about 1.5 V) and the charge plateau (about 1.6 V) were very close on the voltage …
A Study On The Cylindrical Zinc-Air Battery, Sheng Sian Li, Gui Mao Zhou, Xin Ping Ai, Han Xi Yang
A Study On The Cylindrical Zinc-Air Battery, Sheng Sian Li, Gui Mao Zhou, Xin Ping Ai, Han Xi Yang
Journal of Electrochemistry
The zinc air battery has advantages of high specific energies and low cost,therefore attracts much interests.However,its application is limited only in prismatic and button type.This paper reported a novel design of cylindrical zinc air batteries and the performances of the batteries tested at various conditions.The results showed that when discharged at the current of 40 mA at 20 °C, the capacity of AA size and AAA size batteries reached 4000mAh and 1400mAh respectively,corresponding to the energy densities 280 Wh/kg and 200 Wh/kg.The effects of the discharge current, temperature and humidity on the performances of the batteries are also discussed.
Corrosion Behavior Of Reinforcing Steel In Concrete, Rong Du, Gui Gui, Rong Hu, Feng Zu Gang, Tan Jian De, Lin Chang Guang, Jian Jian
Corrosion Behavior Of Reinforcing Steel In Concrete, Rong Du, Gui Gui, Rong Hu, Feng Zu Gang, Tan Jian De, Lin Chang Guang, Jian Jian
Journal of Electrochemistry
The corrosion behavior of reinforcing steel in concrete in chloride free and chloride contaminated simulated concrete solutions was studied by electrochemical technique.The results showed that the reinforcing steel exhitibted different corrosion characteristics in the different solutons.In general ,the steel in concrete was protected in the test solutions with no salt or the lower concentration of NaCl.When the concentration of NaCl is larger than 70%,however,the corrosion behavior of the steel varied considerably,and the corrosion rate increased as pH fell and the concentration of Cl - increased.
Pulse Potential Modulated Electrochemical Gas Sensors, Zhong Bai Zhou, Liang Dong Feng, Wen Jun Liu
Pulse Potential Modulated Electrochemical Gas Sensors, Zhong Bai Zhou, Liang Dong Feng, Wen Jun Liu
Journal of Electrochemistry
The current popular electrochemical gas sensors are mostly stable with regard to their operating states. As a result, the further improvement of sensor charcateristics is restricted by such a "steady state" . Based on the transient electrochemistry principle, a kind of all new transient electrochemical multi component gas sensors— "pulse potential modulated electrochemical gas sensors" was established by combining computer controlled fast modulated potential technique with microelectrode method.This novel approach provided a real time and dynamic sensor technique integrated with acquisition, treatment and display of signals for rapid simultaneous detecion of multicomponent gases, as illustrated by the case of monitoring …
Synthesis Of Li_(1+X)Mn_2o_4 Cathode Material For Lithium-Ion Batteries With Solution Method, Pei Song Liu, Sing Quarn Liu, Qing Li, Zhao Yong Chen, Bai Lan Zhang, Zuo Long Yu
Synthesis Of Li_(1+X)Mn_2o_4 Cathode Material For Lithium-Ion Batteries With Solution Method, Pei Song Liu, Sing Quarn Liu, Qing Li, Zhao Yong Chen, Bai Lan Zhang, Zuo Long Yu
Journal of Electrochemistry
The cathode materials Li 1+x Mn 2O 4 were prepared with citric acid complexing and solution impregnating methods.Structure characterization and specific surface area test were performed by means of XRD,BET methods ,the influences of calcination temperature,Li/Mn molar ratio and raw materials on the structure and electrochemical capacity of samples have beem examined.The results showed that the Li/Mn molar ratio and calcimation temperature were the key factors affecting the electrochemical capacity of cathode materias.The optimum conditions for synthesis of Li 1+x Mn 2O 4 cathode material were 0≤x≤0.05 and calcined at 750°C.The initial capacity of the sample reached 120 mAh/g and …
The Effect Of Cerium On The Anodic Behavior Of Pb-Ca-Sn Alloy In Sulfuric Acid Solution, Hou Tian Liu, Jiong Yang, Hai He Liang, Ji-Hua Zhuang, Wei-Fang Zhou
The Effect Of Cerium On The Anodic Behavior Of Pb-Ca-Sn Alloy In Sulfuric Acid Solution, Hou Tian Liu, Jiong Yang, Hai He Liang, Ji-Hua Zhuang, Wei-Fang Zhou
Journal of Electrochemistry
The cyclic voltammograms for Pb - 0.5 at% Ca - 1.5 at% Sn and Pb - 0.5 at% Ca - 1.5 at% Sn containing a certain amount of cerium in 4.5 mol·dm -3 H 2SO 4 at 20℃ were measured between 0.6 V and 1.4 V(vs. Hg/Hg 2SO 4). The growth rate of the anodic Pb(Ⅱ) films formed on the mentioned alloy electrodes at 0.9 V in the same sulfuric acid medium was investigated using the Linear Sweep Voltammetry. The variation with electrode potential of the real part of the impedence (Z’) for the anodic Pb(Ⅱ) films was measured using …
The Lineal Polarization Method For Corrosion Rate Measurement Of Reinforcing Bar Of Concrete In Situ, Ai-Ling Du, Wen-Tao Hou, He-Ming Zhang, Jian-Qun Luo
The Lineal Polarization Method For Corrosion Rate Measurement Of Reinforcing Bar Of Concrete In Situ, Ai-Ling Du, Wen-Tao Hou, He-Ming Zhang, Jian-Qun Luo
Journal of Electrochemistry
A linear polarization method was applied to measure corrosion rate of reinforcing bar of concrete in situ. Generally in the experiment, the area and shape of the reinforcing bar as a working electrode can be changed and adjusted according to our needs. But polarization area cannot be defined when reinforcing bar is polarized in situ, so that a real R p can't be obtained. Thus the purpose of present work is to improve the measurement system. We used the double_ring auxiliary electrodes made by ourselves. The size of the double_ring auxiliary electrodes was adjusted repeatedly until the real polarization area …
Electrochemical Evaluation On The Porosity Of Electroless Ni-P Alloy Coatings, Hong-Ying Yu, Dong-Bai Sun, Jing-Bing Huang, De-Jun Yang
Electrochemical Evaluation On The Porosity Of Electroless Ni-P Alloy Coatings, Hong-Ying Yu, Dong-Bai Sun, Jing-Bing Huang, De-Jun Yang
Journal of Electrochemistry
By investigating the polarization curves of pure Ni P alloy,Ni P alloy coation and carbon steel in nitric acids with different concentrations,the sutable concentration of nitric acid for the evaluation of the porosity of Ni P alloy coatings has been determined and the coatings with different thickness have been evaluated.The results indicated that the nitric acid with 10 wt% concentration is the most suitable solution for the porosity of the coating by using electrochemical method.The polarization curve of Ni P alloy coating in 10% nitric acid can accurately reveal the porosity.With the decrease of the porosity of the coating,the corrosion …
The Electrochemical Polymerization Of Erythrosin And The Fluorescence Spectra Of Polyerythrosin, Hong Ping Zhu, Shao Lin Mu
The Electrochemical Polymerization Of Erythrosin And The Fluorescence Spectra Of Polyerythrosin, Hong Ping Zhu, Shao Lin Mu
Journal of Electrochemistry
The solution used for the electrolysis consisted of 0.03 mol·dm -3 erythrosin, 0.05 mol·dm -3 sodium tetraborate and 0.5 mol·dm -3 KCl with pH 8.50. Polyerythrosin film with red color has been electrochemically synthesized using repeated potential cycling between -0.20 and 1.10 V (vs.SCE). The film growth and the electrochemical property of polyerythrosin are affected by electrolytic conditions. Two main absorption peaks of polyerythrosin at 326 nm and 370 nm appear in the UV visible spectrum, which are different from that of the monomer. Polyerythrosin in dimethyl sulfoxide or dimethylformamide has a strong fluorescence intensity and the fluorescence intensity of …
The Electro-Catalytic Oxidation Of Hcooh On Electrodeposited Pd Electrode, Quan Zhou, Cunzhong Zhang, Xiaolin Lu, Zhongda Wu
The Electro-Catalytic Oxidation Of Hcooh On Electrodeposited Pd Electrode, Quan Zhou, Cunzhong Zhang, Xiaolin Lu, Zhongda Wu
Journal of Electrochemistry
The coherent electroplates were prepared by electro depositing Pd on supporting materials glassy carbon. The surface morphology of the electrodes was examined by SEM. The electro oxidation of HCOOH in HClO 4 solution was investigated by using cyclic voltammetry. The results show that the deposited conditions in the preparation of electrodes by electro depositing Pd affect the electrodes electro catalytic activity to the oxidation of HCOOH. The platinized Pd electrode on GC substrates using large current density is of higher catalytic activity to the oxidation of HCOOH than Pd electrode. The electro catalytic activity of PdO formed on the Pd …
The Effect Of Anode Thickness In Sofcs With Anode Supported Ysz Film, Yi Huang Zhang, Yi Jiang, Zi Gui Lu, Yong-Lai Dong, Jing-Wang Yan
The Effect Of Anode Thickness In Sofcs With Anode Supported Ysz Film, Yi Huang Zhang, Yi Jiang, Zi Gui Lu, Yong-Lai Dong, Jing-Wang Yan
Journal of Electrochemistry
Solid oxide fuel cells with supported yttria stabilized zirconia electrolyte films on anode substrates of various thickness have been fabricated. The electrochemical performances of the SOFCs have been examined. The results showed that the cell performance was limited by the anodic overpotential, which is caused mainly by a concentration polarization when the anode substrate is thick. The anodic overpotential was reduced obviously as the thickness of anode substrate was decreased. As a result, the performance of the SOFC cell was improved. With a 0.5 mm anode substrate, a SOFC cell produced a power density about 0.19 W/cm 2 at 800 …
A Study On Stochastic Resonance For The Process Of Active-Passive Transition Of Iron In Sulfuric Acid, Hong Bo Ding, Bao Yun Xia, Chun Sheng Yin, Zhong Xiao Pan
A Study On Stochastic Resonance For The Process Of Active-Passive Transition Of Iron In Sulfuric Acid, Hong Bo Ding, Bao Yun Xia, Chun Sheng Yin, Zhong Xiao Pan
Journal of Electrochemistry
The bistable characteristics of the process of active passive transition of iron in sulfuric acid was described and the stochastic resonance phenomenon in the process was simulated.