頁籤選單縮合
題名 | Electrochemical Response of Polyaniline (PANI)/Thiokol Rubber (TR) Films in Cysteine Solution |
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作者 | 賈振斌; 丁克強; 趙倩; 曹江林; 童汝亭; | 書刊名 | Journal of the Chinese Chemical Society |
卷期 | 48:1 2001.02[民90.02] |
頁次 | 頁25-32 |
分類號 | 346.2 |
關鍵詞 | 聚苯胺; Polyaniline; Thiokol rubber; Modified electrode; Electrocatalysis; |
語文 | 英文(English) |
英文摘要 | The electrochemical character of polyaniline/thiokol rubber (PANI/TR) composite film on a Pt electrode was investigated in a cysteine sulphuric acid solution by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The significant change of the peak current and peak potential in the cyclic voltammograms was observed. The irreversible peaks of cyclic voltammetry for cysteine/cystine redox couple at a platinum electrode have turned into one pair of nearly reversible peaks at the above electrode; the reversibility of the redox couple has been greatly improved. We found that thiokol rubber could improve the electrocatalysis of the PANI film to the electrochemical reaction with S-S bonds, as well as the adhesion of the PANI film to the Pt substrate. Several effective factors, such as the concentration of thiokol rubber in the nonaqueous electrodeposition solution, different potential scan rate, immersing time of the film electrode in the studied electrolyte were all taken into account. |
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