A nanofluidic direct formic acid fuel cell with a combined flow-through and air-breathing electrode for high performance.

Ortiz-Ortega, E; Goulet, Marc-Antoni; Lee, Jin Wook; Guerra-Balcázar, M; Arjona, N; Kjeang, Erik; Ledesma-García, J; Arriaga, L G · Lab Chip · 2014

basic_science · Level V

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Abstract

The use of three-dimensional flow-through nanoporous electrodes and the merging of a flow-through and air-breathing cathode were explored and successfully applied in a formic acid air-breathing nanofluidic fuel cell. The effects of fuel concentration, reaction stoichiometry and catalyst mass loading were investigated, resulting in power densities ranging from 28 to 100 mW cm(-2).