Morphology dependent oxygen reduction activity of titanium carbide: bulk vs. nanowires

Kiran, Vankayala and Srinivasu, Kancharlapalli and Sampath, Srinivasan (2013) Morphology dependent oxygen reduction activity of titanium carbide: bulk vs. nanowires. In: Physical Chemistry Chemical Physics, 15 (22). pp. 8744-8751.

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Abstract

Titanium carbide (TiC) possesses fascinating properties like high electrical conductivity and high mechanical strength coupled with high corrosion resistance and stability in acidic and alkaline environments. The present study demonstrates the tunability of mechanistic aspects of oxygen reduction reaction (ORR) using TiC nanostructures. One dimensional TiC nanostructures (TiC-NW) have been synthesized using a simple, hydrothermal method and used as a catalyst for ORR. Shape dependent electroactivity is demonstrated by comparing the activity of TiC-NW with its bulk counterparts. Comparative studies reveal higher ORR activities in the case of 1D TiC-NW involving similar to 4 electrons showing efficient reduction of molecular oxygen. Excellent stability and high methanol tolerance with good selectivity for ORR is reported.

Item Type:	Journal Article
Publication:	Physical Chemistry Chemical Physics
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:	02 Jul 2013 05:01
Last Modified:	02 Jul 2013 05:01
URI:	http://eprints.iisc.ac.in/id/eprint/46802

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