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Effect of carbon-supported and unsupported Pt-Ru anodes on the performance of solid-polymer-electrolyte direct methanol fuel cells

Arico, AS and Shukla, AK and Elkhatib, KM and Creti, P and Antonucci, V (1999) Effect of carbon-supported and unsupported Pt-Ru anodes on the performance of solid-polymer-electrolyte direct methanol fuel cells. In: Journal of Applied Electrochemistry, 29 (6). pp. 671-676.

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Abstract

The structure, chemistry and morphology of commercially available carbon-supported and unsupported Pt-Ru catalysts are investigated by X-ray diffraction, energy-dispersive analysis by X-rays and electron microscopy. The catalytic activities of these materials towards electrooxidation of methanol in solid-polymer-electrolyte direct methanol fuel cells have been investigated at 90 degrees C and 130 degrees C with varying amounts of Nafion(R) ionomer in the catalytic layer. The unsupported Pt-Ru catalyst exhibits higher performance with lower activation-control and mass-polarization losses in relation to the carbon-supported catalyst.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: Direct methanol fuel cell;Pt-Ru catalyst;Solid-polymer-electrolyte (SPE)
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 02 Jun 2009 05:20
Last Modified: 19 Sep 2010 05:25
URI: http://eprints.iisc.ernet.in/id/eprint/18854

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