Integration of carbon felt gas diffusion layers in silicon micro fuel cells
نویسندگان
چکیده
منابع مشابه
Integration of carbon felt gas diffusion layers in silicon micro fuel cells
We have integrated carbon felt, a traditional fuel cell gas diffusion layer, with silicon micro fuel cells. To this end we used two silicon microfabrication procedures using reactive ion etching: formation of black silicon and sinking of flowfield. The former decreases electrical contact resistance to the diffusion layer, the latter serves to contain the reactant gases. The micro fuel cells, wh...
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G. Scotti, P. Kanninen, M. Mäkinen, T. Kallio, S. Franssila Department of Micro and Nanosciences, Aalto University School of Science and Technology, P.O. Box 13500, Aalto 00076, Espoo, Finland Department of Chemistry, Aalto University School of Science and Technology, P.O. Box 16100, Aalto 00076, Espoo, Finland Department of Materials Science and Engineering, Aalto University School of Science ...
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Fuel cells are electrochemical devices which convert chemical energy of a reacting fuel directly into electricity with high efficiency and no pollution. Proton Exchange/ Polymer Electrolyte Membrane (PEM) fuel cells are likely to be among one of the most promising energy sources for transportation, heating and power generation. Some of the key materials used in PEM fuel cells are catalysts, mem...
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The porous gas diffusion layers (GDLs) are key components in hydrogen fuel cells. During their operation the cells produce water at the cathode, and to avoid flooding, the water has to be removed out of the cells. How to manage the water is therefore an important issue in fuel cell design. In this paper we investigated water flow in the GDLs using a combination of the lattice Boltzmann method a...
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The effect of mass transport on the growth characteristics of large-area vapor-grown carbon nanofibers (CNFs) was investigated by adjusting the substrate deposition angle (α). The catalyst precursor solution was coated onto one side of a 2D porous carbon paper substrate via a decal printing method. The results showed that the CNFs were grown on only one side of the substrate and α was found to ...
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ژورنال
عنوان ژورنال: Journal of Micromechanics and Microengineering
سال: 2012
ISSN: 0960-1317,1361-6439
DOI: 10.1088/0960-1317/22/9/094006