Fe:NiO_x阳极催化膜电极过程动力学研究  

Electrode Kinetics Research of Fe:NiO_x Thin Films as Anode Catalysis

作　　者：黄金昭[1] 徐征[1] 李海玲[2] 亢国虎[2] 王文静[2] 

机构地区：[1]北京交通大学,北京100044 [2]北京市太阳能研究所,北京100083

出　　处：《表面技术》2005年第4期35-37,共3页Surface Technology

基　　金：国家973基金资助项目(2003CB214501)

摘　　要：利用射频反应磁控溅射制备Fe:NiOx阳极催化膜,对其在电解液中的电极过程进行分析,明确整个电极过程的控制步骤———电化学步骤。根据实验结果及塔菲尔方程求出电化学步骤的重要动力学参数(塔菲尔斜率b,交换电流密度i0),并通过XPS和SEM分析影响过电势的因素。Fe：NiOx thin films were deposited by RF reactive magnetron sputtering, the electrode processes of the film in the electrolyte were analyzed, and the determining process（electrochemical process） was convinced. The important kinetic parameters （Tafel slope b, exchange current density i0 ） of electrochemical process were obtained by experimental results and Tafel equation,and the effects of some factors on oxygen overpotential were analyzed.

关 键 词：动力学 电极过程 Fe:NiOx 

分 类 号：TK91[动力工程及工程热物理] O643.12[理学—物理化学]