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An improved-performance liquid-feed solid-polymer-electrolyte direct methanol fuel cell operating at near-ambient conditions

Lookup NU author(s): Professor Ashok Shukla, Christopher Jackson, Emeritus Professor Keith Scott

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Abstract

Results on the performance of a 25 cm(2) liquid-feed solid-polymer-electrolyte direct methanol fuel cell (SPE-DMFC), operating under near-ambient conditions, are reported. The SPE-DMFC can yield a maximum power density of c. 200 mW cm(-2) at 90 C while operating with 1 M aqueous methanol and oxygen under ambient pressure. While operating the SPE-DMFC under similar conditions with air, a maximum power density of ca. 100 mW cm(-2) is achieved. Analysis of the electrode reaction kinetics parameters on the methanol electrode suggests that the reaction mechanism for methanol oxidation remains invariant with temperature. Durability data on the SPE-DMFC at an operational current density of 100 mA cm(-2) have also been obtained.

Publication metadata

Author(s): Scott K; Jackson CL; Shukla AK; Raman RK

Publication type: Article

Publication status: Published

Journal: Electrochimica Acta

Year: 2002

Volume: 47

Issue: 21

Pages: 3401-3407

ISSN (print): 0013-4686

ISSN (electronic): 1873-3859

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/S0013-4686(02)00276-1

DOI: 10.1016/S0013-4686(02)00276-1

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