Study of Reactive Plasma Sprayed TiN Electrocatalytic Carrier Coatings

Abstract:

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In this paper TiN coating as an interlayer was fabricated on Q235 steel substrate by reactive plasma spray method and its microstructure and influences on the performance of the Fe/TiN/PO2 electrode were investigated. It is shown that the TiN coating has a rough surface and layered cross-section structure. The coating consists of main TiN phase and a small quantity of Ti oxides. After heat-treated below 550°C the TiN coating is greatly densified due to the increase of Ti oxides, and however the electric resistance of the Fe/TiN samples is still lower than that of the Ti substrate. For the Fe/TiN/PbO2 electrode a rougher surface and more micropores were observed in the active PbO2 coating than on the surface of the Ti/PbO2 electrode. Due to the presence of the TiN interlayer the Fe/TiN/PbO2 electrode shows an accelerated life of 180h under the test condition, which is much longer than 28min of the Ti/PbO2 electrode.

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Periodical:

Edited by:

Han Zhao

Pages:

950-954

DOI:

10.4028/www.scientific.net/AMM.130-134.950

Citation:

L. H. Gao et al., "Study of Reactive Plasma Sprayed TiN Electrocatalytic Carrier Coatings", Applied Mechanics and Materials, Vols. 130-134, pp. 950-954, 2012

Online since:

October 2011

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$35.00

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