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Mesoporous Carbon and Poly(3,4-ethylenedioxythiophene) Composite as Catalyst Support for Polymer Electrolyte Fuel Cells

Tintula, KK and Sahu, AK and Shahid, A and Pitchumani, S and Sridhar, P and Shukla, AK (2010) Mesoporous Carbon and Poly(3,4-ethylenedioxythiophene) Composite as Catalyst Support for Polymer Electrolyte Fuel Cells. In: Journal of the Electrochemical Society, 157 (11). B1679-B1685.

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Abstract

In situ polymerization of 3,4-ethylenedioxythiophene with sol-gel-derived mesoporous carbon (MC) leading to a new composite and its subsequent impregnation with Pt nanoparticles for application in polymer electrolyte fuel cells (PEFCs) is reported. The composite exhibits good dispersion and utilization of platinum nanoparticles akin to other commonly used microporous carbon materials, such as carbon black. Pt-supported MC-poly(3,4-ethylenedioxythiophene) (PEDOT) composite also exhibits promising electrocatalytic activity toward oxygen reduction reaction, which is central to PEFCs. The PEFC with Pt-loaded MC-PEDOT support exhibits 75% of enhancement in its power density in relation to the PEFC with Pt-loaded pristine MC support while operating under identical conditions. It is conjectured that Pt-supported MC-PEDOT composite ameliorates PEFC performance/durability on repetitive potential cycling. (C) 2010 The Electrochemical Society. DOI: 10.1149/1.3486172] All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The Electrochemical Society.
Keywords: carbon, catalysts, conducting polymers, disperse systems, electrokinetic effects, filled polymers, mesoporous materials, nanocomposites, nanofabrication, organic-inorganic hybrid materials, particle reinforced composites, platinum, proton exchange membrane fuel cells, reduction (chemical), sol-gel processing
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 21 Dec 2010 09:26
Last Modified: 21 Dec 2010 09:26
URI: http://eprints.iisc.ernet.in/id/eprint/34558

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