Study on the performance of amorphous nickel hydroxide codoped with Ce and Fe

摘要：

　　Amorphous nickel hydroxide powders codoped with Ce and Fe were synthesized by the combined chemical precipitation and rapid freezing method.The microstructure and chemical composition of the samples was characterized by XRD,SAED and EDS.The electrochemical performance of the prepared samples was analyzed by cyclic voltammetry (CV),electrochemical impedance spectroscopy (EIS),and charge-discharge tests.The results showed that this amorphous nickel hydroxide codoped with Ce and Fe had more structural defects than those of Fe singly doped amorphous nickel hydroxide.These abundant structural defects with Ce and Fe codoped amorphous nickel hydroxide increased the thermal stability,decreased the charge transfer resistance,inhibited oxygen evolution reaction effectively and improved the electrochemical reversibility of the amorphous nickel hydroxide electrode.

关键词： Amorphous nickel hydroxide Ce and Fe codoped Microstructure electrochemical performance

作者: Changjiu Liu Chunxiao Xing Shijuan Chen

作者单位: College of Chemistry and Bioengineering,Guilin University of Technology,Guilin 541004,China;Key labo College of Chemistry and Bioengineering,Guilin University of Technology,Guilin 541004,China

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 718-722

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）