Numerical Simulation of the Reaction and Mass-Transfer Profiles in the Two-Layer Catalyst of a PEMFC

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概要

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• A simple one-dimensional numerical simulation for cathode catalyst layers was conducted to elucidate the signifi-cance of a structure with a gradient in the ionomer content in the cross-plane direction. First, under an assumption of uniform (one-layer) catalysts, equivalent pairs of the effective ionic conductivity and effective gas diffusion coefficient were identified. Next, results with two-layer catalysts were calculated with two pairs of parameters among the equivalent pairs obtained earlier. Comparison of the performance of the two-layer catalysts revealed that ionic conductivity is more important near the PEM, and gas diffusivity is more important near the GDL.

• 公益社団法人 電気化学会の論文

著者

• Yasuda Kazuaki

  Research Institute For Ubiquitous Energy Devices National Institute Of Advanced Industrial Science A

• SIROMA Zyun

  Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)

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• Numerical Simulation of the Reaction and Mass-Transfer Profiles in the Two-Layer Catalyst of a PEMFC

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