首页 | 本学科首页   官方微博 | 高级检索  
     检索      

氧化铁镍电极上析氧反应的电化学研究
引用本文:黄金昭,徐征,李海玲,亢国虎,王文静.氧化铁镍电极上析氧反应的电化学研究[J].电化学,2006,12(2):154-158.
作者姓名:黄金昭  徐征  李海玲  亢国虎  王文静
作者单位:1. 北京交通大学,发光与光信息技术教育部重点实验室,北京,100044
2. 北京市太阳能研究所,北京,100083
基金项目:国家研究发展基金;北京交通大学校科研和教改项目
摘    要:应用射频反应磁控溅射法制备阳极催化氧化铁镍薄膜,由循环伏安、线性扫描伏安、极化曲线和电化学交流阻抗谱等研究发生在该电极上的氧化反应.结果表明,作为活化中心的铁能使过电势降低,并且随着溅射过程氧流量的增加催化性能增强,铁的掺入使得速率限定步骤由OH^-的释放变为氧原子的结合.与镍相比,氧化铁镍是更理想的催化阳极材料,当电流密度为50mA/cm^2时,其氧的过电势比镍的下降了500mV.

关 键 词:氧化铁镍  电催化  氢能
文章编号:1006-3471(2006)02-0154-05
收稿时间:2005-11-04
修稿时间:2006-01-02

Electrochemical Studies of Iron-doped Nickel Oxide Electrode for Oxygen Evolution Reaction
HUANG Jin-zhao,XU Zheng,LI Hai-ling,KANG Guo-hu,WANG Wen-jing.Electrochemical Studies of Iron-doped Nickel Oxide Electrode for Oxygen Evolution Reaction[J].Electrochemistry,2006,12(2):154-158.
Authors:HUANG Jin-zhao  XU Zheng  LI Hai-ling  KANG Guo-hu  WANG Wen-jing
Institution:1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of optoelectronic technology, Beijing jiaotong university, Beijing 100044, China; 2. Beijing solar energy research institute, Belling 100083, China
Abstract:In this paper, the iron-doped nickel oxide thin film as anode catalyst was prepared by RF reactive sputtering method. The oxygen evolution reaction (OER) on the iron-doped nickel oxide was investigated with cyclic voltammetry, liner sweep voltammetry, polarization curves and electrochemical impedance spectroscopy.Results show that the iron acts as active site in the film which makes the overpotential lower, and changes the rate-limiting from primary discharge of OH - ions to the recombination of oxygen atom. With the increasing of oxygen content in flu ratio during sputtering, the electrocatalytic activities of the film increase. Iron-doped nickel oxide thin film is promising material as OER electrocatalyst for hydrogen production than the nickel electrode.The oxygen overpotential on the film was over 500 mV lower than the overpotential with nickel at 50mA/cm2.
Keywords:Iron-doped nickel oxide  Electrocatalytic  Hydrogen energy
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号