Platinum particles supported on titanium nitride: an efficient electrode material for the oxidation of methanol in alkaline media

Thotiyl, Ottakam MM and Ravikumar, T and Sampath, S (2010) Platinum particles supported on titanium nitride: an efficient electrode material for the oxidation of methanol in alkaline media. In: Journal of Materials Chemistry, 20 (47). pp. 10643-10651.

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Abstract

In the present study, titanium nitride which shows exceptional stability, extreme corrosion resistance, good electronic conductivity and adhesion behaviour is used to support platinum particles and then used for methanol oxidation in an alkaline medium. The catalyst shows very good CO tolerance for the electrochemical oxidation of methanol. In situ infrared spectroelectrochemical data show the remarkable ability of TiN to decompose water at low over potentials leading to -OH type functional groups on its surface which in turn help in alleviating the carbon monoxide poisoning associated with methanol oxidation. TiN supported catalysts are found to be very good in terms of long term stability, exchange current density and stable currents at low over voltages. Supporting evidence from X-ray photoelectron spectroscopic data and cyclic voltammetry clearly demonstrates the usefulness of TiN supported Pt catalysts for efficient methanol oxidation in alkaline media.

Item Type:	Journal Article
Publication:	Journal of Materials Chemistry
Publisher:	Royal Society of Chemistry
Additional Information:	Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	21 Dec 2010 10:59
Last Modified:	21 Dec 2010 10:59
URI:	http://eprints.iisc.ac.in/id/eprint/34564

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