Electrodeposited mesoporous platinum catalysts over hierarchical carbon monolithic support as anode in small PEM fuel cells
作者： Mariano M. Bruno , Esteban A. Franceschini , Federico A. Viva , Yohann R.J. Thomas , Horacio R. Corti
DOI: 10.1016/J.IJHYDENE.2012.02.058
关键词:
摘要: Abstract A mesoporous platinum catalyst was electrodeposited on the outer region of a carbon with hierarchical porous structure, using block copolymer template. The deposits exhibit an excellent stability enhanced by roughness support. Membrane Electrode Assemblies (MEAs) were prepared supported as anode, Nafion 117 membrane, and commercial gas diffusion electrode cathode side. Their performance compared that MEAs over cloth, measuring polarization curves in single fuel cell (1 cm 2 active area) H /O at 60 °C ambient pressure. reaches power density 25 mW mgPt −1 cm −2 , 50% higher than obtained electrode. high achieved is attributed to synergic effect result integration structured carbon, which proposed innovative procedure prepare efficient for small cells.
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