In this work, we present an experimental microfluidic fuel cell with a novel up-scaled porous electrode architecture that provides higher overall power output compared to conventional microfluidic fuel cells and a methodology for electrode material evaluation to inform designs for improved performance. Our proof-of-concept architecture is an up-scaled version of a previously presented flow-through cell with more than nine times the active electrode surface area. We employed 0.04M formic acid and 0.01M potassium permanganate as fuel and oxidant, respectively, dissolved in a 1M sulfuric acid electrolyte. Platinum black was employed as the catalyst for both anode and cathode. Carbon based porous electrodes including felt, cloth, fibre, and foam were compared to traditional Toray carbon paper in order to characterize their respective performances. We also discussed current densities normalized by electrode volume, which is appropriate for comparison of flow-through architectures. The traditional method of current normalization by projected electrode surface area is also presented.
- Advanced Energy Systems Division
- Solar Energy Division
Carbon Based Electrodes for Upscaling Microfluidic Fuel Cells
Fuerth, D, & Bazylak, A. "Carbon Based Electrodes for Upscaling Microfluidic Fuel Cells." Proceedings of the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2012 6th International Conference on Energy Sustainability. ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. San Diego, California, USA. July 23–26, 2012. pp. 223-228. ASME. https://doi.org/10.1115/FuelCell2012-91043
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