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Issue 13, 2019
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Reductive-heat-treated platinum tungsten oxide catalyst with improved CO oxidation activity and CO gas sensing property

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Abstract

In this report, a reductive-heat-treated platinum tungsten oxide catalyst was prepared to improve the CO electro-oxidation activity and employed in the electrochemical sensor. Tungsten oxide was proved to be an effective co-catalyst for CO sensing and the strong interaction between platinum and tungsten oxide has been enhanced by the reductive heat treatment. As a result, the significant negative shift of CO oxidation potential was confirmed by an electrochemical characterization. Further, the sensing performance of the as-prepared catalyst was investigated by means of the portable CO sensor device, which showed higher sensitivity, faster response time and good linearity within 50 ppm CO.

Graphical abstract: Reductive-heat-treated platinum tungsten oxide catalyst with improved CO oxidation activity and CO gas sensing property

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Publication details

The article was received on 31 Jan 2019, accepted on 28 Feb 2019 and first published on 28 Feb 2019


Article type: Paper
DOI: 10.1039/C9AY00232D
Anal. Methods, 2019,11, 1811-1815

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    Reductive-heat-treated platinum tungsten oxide catalyst with improved CO oxidation activity and CO gas sensing property

    S. Liu, L. Liang, Q. Zhang, C. Liu, W. Xing and X. Dong, Anal. Methods, 2019, 11, 1811
    DOI: 10.1039/C9AY00232D

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