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题名: The electrochemical properties of AB(3)/polyaniline composites
作者: Qi, Yan-Ni1, 2;  Xu, Fen1;  Chu, Hai-Liang1, 2;  Sun, Li-Xian1, 3;  Jiang, T.1;  Zhu, M.4
关键词: AB(3)/PANI composite ;  electrochemical properties ;  discharge cycle stability
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2007-12-01
DOI: 10.1016/j.ijhydene.2007.07.008
卷: 32, 期:18, 页:4894-4899
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: The La(0.7)Mg(0.25)Ti(0.05)Ni(2.975)Co(0.525) (AB(3)) alloy was modified with different contents of polyaniline (PANI) through ball milling. XRD, SEM and FTIR were used to characterize the properties of the AB(3)/x PANT composites (x=1, 2, 3 and 4wt%). The effects of PANI on the electrochemical properties of AB(3) alloy electrode were studied by charge-discharge, electrochemical impedance spectroscopy (EIS), linear polarization (LP) and potentiostatic discharge experiments. The XRD, SEM and FTIR results showed that ball milling did not change the characterizations of PANT and AB(3) alloy but decreased the average particle size of AB(3) alloy. The charge-discharge results indicated that the maximum discharge capacity of AB(3) alloy electrode decreased with the addition of PANT. However, the discharge cycle stability of AB(3)/PANI composite electrodes increased firstly and then decreased with the increase in PANT content. The EIS and LP curves showed the same trends with the discharge cycle stability. The hydrogen diffusion coefficients of AB(3)/PANI composites were estimated from the potentiostatic discharge curves, indicated the opposite trend with the discharge cycle stability. When the PANT content was equal to 3 wt%, the AB(3)/PANI composite electrode exhibited an optimal electrochemical kinetic property. (c) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: HYDROGEN STORAGE ALLOYS ;  METAL HYDRIDE ELECTRODES ;  NI ;  SUBSTITUTION ;  BATTERIES ;  BEHAVIOR ;  POLYMER ;  PD
语种: 英语
WOS记录号: WOS:000252259500032
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140551
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Educ Sch Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jinan Univ, Dept Chem, Guangzhou 510632, Peoples R China
4.S China Univ Technol, Sch Mech Engn, Guangzhou 510641, Peoples R China

Recommended Citation:
Qi, Yan-Ni,Xu, Fen,Chu, Hai-Liang,et al. The electrochemical properties of AB(3)/polyaniline composites[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2007,32(18):4894-4899.
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