Journal
ELECTROCHIMICA ACTA
Volume 52, Issue 15, Pages 4942-4946Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2007.01.062
Keywords
microfluidic fuel cell; membraneless fuel cell; laminar flow-based fuel cell; vanadium redox couple; microstructured electrodes
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We demonstrate a new microfluidic fuel cell design with high-surface area porous carbon electrodes and high aspect ratio channel, using soluble vanadium redox species as fuel and oxidant. The device exhibits a peak power density of 70 mW cm(-2) at room temperature. In addition, low flow rate operation is demonstrated and single pass fuel utilization levels up to 55% are achieved. The proposed design facilitates cost-effective and rapid fabrication, and would be applicable to most microfluidic fuel cell architectures. (c) 2007 Elsevier Ltd. All rights reserved.
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