Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7713852 | International Journal of Hydrogen Energy | 2015 | 7 Pages |
Abstract
Glucose membraneless microfluidic fuel cells have shown low cell performance with low oxygen mass transfer being one of the principal limitations. Herein, we report and discuss using air as an oxygen source to reduce the limitations of the cathode. The result was the first inorganic-catalyst air-breathing glucose microfluidic fuel cell, which shows the highest cell performance reported to date for this type of device: 1.6Â mWÂ cmâ2 with a cell voltage and maximum current density of 0.83Â V and 9.5Â mAÂ cmâ2, respectively. This record performance was attributed to the enhancement of the oxygen concentration, oxygen diffusivity and the metal-metal and metal-support interactions of the AuAg supported on multi-walled carbon nanotubes (AuAg/MWCNT) employed as electrocatalyst in the anode with 20% less Au-loading than Au/MWCNT material as comparison.
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Authors
N. Arjona, A.J. Armenta-González, S. Rivas, M. Guerra-Balcázar, J. Ledesma-GarcÃa, L.G. Arriaga,