电极
电化学
钯氢电极
玻璃碳
氢醌电极
无机化学
参比电极
电解质
镉
化学
化学修饰电极
工作电极
绝对电极电位
金属
碱金属
玻璃电极
氧化还原
标准氢电极
碳纤维
分析化学(期刊)
材料科学
循环伏安法
物理化学
有机化学
复合材料
复合数
作者
Habib Razmi,Kamran Heidari
标识
DOI:10.1016/j.electacta.2004.12.038
摘要
A glassy carbon (GC) electrode surface was modified with a cadmium pentacyanonitrosylferrate (CdPCNF) film as a novel electrode material. The modification procedure of the GC surface includes two consecutive procedures: (i) the electrodeposition of metallic cadmium on the GC electrode surface from a CdCl2 solution and (ii) the chemical transformation of the deposited cadmium to the CdPCNF films in 0.05 M Na2[Fe(CN)5NO] + 0.5 M KNO3 solution. The modified GC electrode showed a well-defined redox couple due to [CdIIFeIII/II(CN)5NO]0/−1 system. The effects of supporting electrolytes and solution pH were studied on the electrochemical behavior of the modified electrode. The diffusion coefficients of alkali-metal cations in the film (D), the transfer coefficient (α) and the charge transfer rate constant at the modifying film | electrode interface (ks), were calculated in the presence of various alkali-metal cations. The stability of the modified electrode was investigated under various experimental conditions.
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