Ramkumar, R. and Dheenadayalan, S. and Pattabiraman, R. (1997) Development of porous carbon electrodes for direct methanol fuel cells. Journal of Power Sources, 69 (01). pp. 75-80. ISSN 0378-7753

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Porous carbon electrodes containing platinum and platinum-ruthenium catalysts are prepared by a rolling technique with polytetrafluoroethylene as a binder. The 5 and 10 wt.% of the catalyst is deposited on a carbon substrate (Vulcan XC-72) by a colloidal dispersion technique. Half-cell polarization studies in 2.50 M H2SO4 electrolyte containing CH3OH (1.0-3.0 M) have been carried out. The polarization values of electrodes containing platinum-ruthenium are lower than that of catalysts containing platinum only. Porous electrodes containing 2-5.0 mg cm-2 of catalyst exhibit a polarization value of less than 300 mV at 100 mA cm-2 at 60 deg.C in 2.50 M H2SO4

Item Type: Article
Uncontrolled Keywords: Fuel cells; Electrocatalysts; Platinum; Ruthenium; Methanol
Subjects: Electrochemical Power Sources
Depositing User: ttbdu cecri
Date Deposited: 20 Jul 2012 11:36
Last Modified: 20 Jul 2012 11:36
URI: http://cecri.csircentral.net/id/eprint/2856

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