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Effects of conductive polyaniline (PANI) preparation and platinum electrodeposition on electroactivity of methanol oxidation

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Abstract

A modified galvanostatic method, termed the ‘pulse galvanostatic method’ (PGM) was used to synthesize nanofibular polyaniline (PANI). In contrast to granular PANI prepared by the conventional galvanostatic method (GM), nanofibular PANI has better conductivity and higher specific surface area. The nanofibular PANI electrode modified by Pt microparticles, at the same Pt loading, exhibits a considerably higher electrocatalytic activity on the methanol oxidation than that of the granular PANI electrode modified by Pt microparticles. Furthermore, the PGM method can be used as a good method for Pt microparticle electrodeposition. The composite electrode composed of PANI and Pt microparticles has the best electrocatalytic activity in the experimental range. The effects of Pt loading and methanol concentration, on the electrocatalytic activity for methanol oxidation have also been researched.

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P.R. China

    H.H. Zhou, S.Q. Jiao, J.H. Chen, W.Z. Wei & Y.F. Kuang

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  1. H.H. Zhou
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  2. S.Q. Jiao
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  3. J.H. Chen
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  4. W.Z. Wei
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  5. Y.F. Kuang
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Correspondence to Y.F. Kuang.

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Zhou, H., Jiao, S., Chen, J. et al. Effects of conductive polyaniline (PANI) preparation and platinum electrodeposition on electroactivity of methanol oxidation. Journal of Applied Electrochemistry 34, 455–459 (2004). https://doi.org/10.1023/B:JACH.0000016635.35555.04

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  • DOI: https://doi.org/10.1023/B:JACH.0000016635.35555.04

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