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Citation: Luo Weizhong, Wu Wanqun. Electrocataltic Action of Polypyrrol Film Electrode on Fe(Ⅱ) and Sb(Ⅲ)[J]. Chinese Journal of Applied Chemistry, ;1994, 11(1): 42-45. shu

Electrocataltic Action of Polypyrrol Film Electrode on Fe(Ⅱ) and Sb(Ⅲ)

Luo Weizhong ,
Wu Wanqun

1.
Department of Chemistry, Southwest Normal University, Chongqing 630715

Received Date: 30 March 1993
Available Online: 26 June 1993
Fund Project:

The electrocatalytic action of polyaniline(PAn) and polypyrrole(PPy) film electrode on Fe(Ⅱ) and Sb(Ⅲ) has been studied by cyclic voltammetry. The redox currents ofFe(Ⅱ) and Sb(Ⅲ) at the polymer film electrodes are twice or several times greater than those at bare Pt electrode. The difference between the redox peak potentials at the polymer film electrode becomes obviously less than that at the bare Pt electrode. The results show that the PAn and PPy film electrodes exhibit catalytic activity for electrode reacti On of Fe(Ⅱ) and Sb(Ⅲ).Anodic and cathodic currents of Fe(Ⅱ) and Sb(Ⅲ) at two polvmer electrodes appeared identical at low potential sweep rate, The peak current linearly depends on the square root of potential sweep rate, indicating that the electrode process at polymer filmis a diffusion controlled one.
- polyaniline,
- polypyrrole,
- electrocatalvsis,
- cvclic voltammetry
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