对4种测试多孔电极内离子电阻的方法,即线性电势扫描法、电势阶跃计时库仑法、电流阶跃计时电势法和交流阻抗法进行了比较性研究.4种方法都可在双层区对符合一维传输线模型的多孔电极进行离子电阻的测定.在多数场合,所提出的简化计时库仑法因操作简易和重现性好而最值得推荐,如电极的双层区电势范围很窄,则交流阻抗较为合适.
作 者: 金先波 庄林 陆君涛
作者单位: 武汉大学化学系,湖北,武汉,430072
刊 名: 电池 ISTIC PKU
英文刊名: BATTERY BIMONTHLY
年,卷(期): 2003 33(2)
分类号: TM912.2
关键词: 调:多孔电极 离子电阻 电化学暂态方法
机标分类号: O64 TM9
机标关键词: 多孔电极离子电阻计时库仑法交流阻抗法电势阶跃传输线模型比较性研究方法电流阶跃扫描法电势法重现一维线性简易测试测定操作
基金项目:
DOI: 参考文献(13条)
De Levie R Electrochemical response of porous and rough electrodes 1967
Jain M.Weidner J W Material balance modification in one-dimensional modeling of porous electrodes 1999(4)
武汉大学电化学实验室 防水型气体扩散电极的极化理论 1975(3)
Galushkin N E.Kudryavtsev Y D Study of the depth of the penetration of the electrochemical process in porous electrodes 1994(30)
Boyer C.Gamburzev S.Velev O A Measurements of the proton conductivity in the active layer of PEM fuel cell gas diffusion electrodes 1998
Lasia A Impedance of porous electrodes 1995
Marshall S L Mathematical analysis of interfacial current distribution in cylindrical porous electrodes 1991(4)
Weaver J K.Mclarnon F R.Cairns E J Experimental and theoretical study of concentration distributions in a model pore electrode 1991(9)
Shenoy R V.Fenton J M.Malachesky P Characterization of a porous electrode in a zinc chloride battery 1989
Austin L G.Gagnon E G The triangular voltage sweep method for determining double-layer capacity of porous electrodes (Ⅰ). Theory 1973
