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Electrochemical Behavior of Europium-Ferrocene Derivative Coordination Complex Chemically Modified Electrodes
Author(s): 
Pages: 1-4
Year: Issue:  1
Journal: JOURNAL OF THE CHINESE RARE EARTH SOCIETY

Keyword:  稀土二茂铁衍生物修饰电极薄膜电极;
Abstract: 研究了影响铕-二茂铁衍生物配合物薄膜修饰电极伏安性质的各种因素, 讨论了薄膜电极的电荷传递过程. 在LiClO4和甘氨酸底液中, 在0~0.8 V(vs.SCE)电位范围内可观察到修饰电极的氧化还原峰, 薄膜修饰电极在底液中是一种薄层扩散过程, 用计时库仑法测得其表观扩散系数为2.1×10-10 cm2·s-1. 溶液平衡离子的水合半径大小、离子强度、溶剂对薄膜的溶胀性质以及薄膜的厚度是影响薄膜修饰电极伏安性质的主要因素. 同时测定了电极反应的表观速率常数ks为6.7×10-1 s-1.
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