Free Convection Direct Methanol Fuel Cells Powered by Electroosmotic Pumps (original) (raw)

© 2006 ECS - The Electrochemical Society
ECS Transactions,Volume 3,Number 1Citation Cullen Buie et al 2006 ECS Trans. 3 1279DOI 10.1149/1.2356247

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1938-5862/3/1/1279

Abstract

This work reports on the design and performance evaluation of a miniature direct methanol fuel cell (DMFC) integrated with an electroosmotic pump for methanol delivery. Electroosmotic pumps require minimal parasitic power while boasting no moving parts and simple fuel cell integration. Here, electroosmotic pumps are realized from commercially available porous glass frits. Experimental results show that electroosmotic pumps deliver 4M, and 8M methanol/water mixtures to DMFCs (at 50oC) while utilizing 1% and 4% of the fuel cells power, respectively. Furthermore, we discuss pertinent design considerations when using electroosmotic pumps with DMFCs and areas of future study.

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