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

Shukla, AK and Jackson, CL and Scott, K and Raman, RK (2002) An improved-performance liquid-feed solid-polymer-electrolyte direct methanol fuel cell operating at near-ambient conditions. In: Electrochimica Acta, 47 (21). 3401-3407 .

PDF An_improved-performance.pdf - Published Version Restricted to Registered users only Download (397kB) | Request a copy

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.

Item Type:	Journal Article
Publication:	Electrochimica Acta
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Direct methanol fuel cell;Solid-polymer electrolyte;Liquid-feed;Tafel slope
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	04 Aug 2011 05:42
Last Modified:	04 Aug 2011 05:42
URI:	http://eprints.iisc.ac.in/id/eprint/38984

Actions (login required)

View Item