Enhanced activity of Pt(HY) and Pt-Ru(HY) zeolite catalysts for electrooxidation of methanol in fuel cells

Samant, P.V.; Fernandes, J.B.

Enhanced activity of Pt(HY) and Pt-Ru(HY) zeolite catalysts for electrooxidation of methanol in fuel cells

Samant, P.V.; Fernandes, J.B.

Source : Journal of Power Sources. 125(2); 2004; 172-177.

URI: http://dx.doi.org/10.1016/j.jpowsour.2003.07.013
http://irgu.unigoa.ac.in/drs/handle/unigoa/1603

Date: 2004

Document Type: Journal article

Abstract:

The investigation describes the synthesis of Pt and Pt-Ru catalysts by a new method using a HY zeolite support. The catalysts are used to study the anodic oxidation of methanol in an acidic medium to investigate their suitability for use in direct methanol fuel cells (DMFCs). The catalysts prepared in a HY zeolite support display significantly enhanced electrocatalytic activity in the order: HY less than Pt/C less than Pt(HY) less than Pt-Ru/C less than Pt-Ru(HY). The enhanced electrocatalytic activity is explained on the basis of the formation of specific CO clusters in zeolite cages.

Show full item record