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不同电极基体对K2FeO4充放电循环性能的影响
引用本文:杨卫华.不同电极基体对K2FeO4充放电循环性能的影响[J].华侨大学学报(自然科学版),2006,27(2):151-154.
作者姓名:杨卫华
作者单位:华侨大学材料科学与工程学院,福建,泉州,362021
基金项目:福建省自然科学基金;福建省青年科技人才创新基金;华侨大学校科研和教改项目
摘    要:采用三电极体系法研究银网、铂网和泡沫镍等不同电极基体的阳极极化行为,探讨不同电极基体对 K_2FeO_4电极充放电性能的影响规律.结果表明,K_2FeO_4具有一定的可充性,但其充放电性能与电极基体的析氧电位有很大关系.电极基体的析氧电位低于K_2FeO_4的氧化还原电位时,K_2FeO_4电极基本充不上电;而当电极基体的析氧电位与K_2FeO_4的氧化还原电位相近,K_2FeO_4电极只能部分充电.

关 键 词:K_2FeO_4  阳极极化  充放电性能  电极基体
文章编号:1000-5013(2006)02-0151-04
收稿时间:2005-10-10
修稿时间:2005-10-10

The Effects of Electrode Metals on the Charge-Discharge Behavior of K2FeO4 Electrodes
Yang Weihua.The Effects of Electrode Metals on the Charge-Discharge Behavior of K2FeO4 Electrodes[J].Journal of Huaqiao University(Natural Science),2006,27(2):151-154.
Authors:Yang Weihua
Institution:College of Material Science and Engineering, Huaqiao University, 362021, Quanzhou, China
Abstract:In order to understand the effects of electrode materials on the charge-discharge behaviors of K_2FeO_4 electrodes , constant current charge-discharge experiments were carried out to investigate the charge-discharge performance of K_2FeO_4 electrodes using silver lattice, nickel foam and platinum lattice as current collectors respectively. Polarization curves of these metal materials were used to interpret the difference in the charge-discharge performance of the corresponding K_2FeO_4 electrodes. Studies showed that the K_2FeO_4 electrodes have low electrochemical reversibility, which may be mainly resulted from their relatively lower oxygen evolution potentials or the effects of the oxidation/reduction process of current collectors.
Keywords:K_2FeO_4  polarization curve  charge-discharge behavior  electrode metals  
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