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Methanol oxidative fuel cell: electrochemical synthesis and characterization of low-priced WO3-Pt anode material

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Abstract

Electroplating of WO3-Pt has been carried out using a suitable plating bath solution and optimum working conditions. X-ray and SEM studies of the deposit reveal a smooth and uniform distribution of micro-particles on the surface. New phases of the plated material appear on heat treatment. The electrocatalytic activity of the WO3-Pt co-deposit is considerably higher than for platinum alone. WO3 in the WO3-Pt co-deposit reduces the retardation effect of methanol oxidation by the reaction intermediate observed in the case of Pt alone. WO3-Pt co-deposits exhibit low overpotential for methanol oxidation in both acidic and alkaline media at low temperature and have good corrosion resistance in electrolytic media. The electrochemical parameters for methanol oxidation of these co-deposits depend on trace amounts of the platinum, heat treatment and the microstructure of the coating.

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Acknowledgements

The authors are grateful to the UGC, New Delhi, for financial assistance under the COSIST program to carry out this work.

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Authors and Affiliations

  1. Department of Post-Graduate studies and Research in Chemistry, Central College, Bangalore University, 560 001, Bangalore, India

    F. Shafia Hoor, M. F. Ahmed & S. M. Mayanna

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  1. F. Shafia Hoor
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  2. M. F. Ahmed
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  3. S. M. Mayanna
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Correspondence to S. M. Mayanna.

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Shafia Hoor, F., Ahmed, M.F. & Mayanna, S.M. Methanol oxidative fuel cell: electrochemical synthesis and characterization of low-priced WO3-Pt anode material. J Solid State Electrochem 8, 572–576 (2004). https://doi.org/10.1007/s10008-004-0501-5

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  • DOI: https://doi.org/10.1007/s10008-004-0501-5

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