Study of Novel Structure of Gas Diffusion Layer for PEFC

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  • PEFCにおけるガス拡散層高機能化の研究
  • PEFC ニ オケル ガス カクサンソウ コウキノウカ ノ ケンキュウ

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Water management is one of the most critical issue to realize the commercialization of PEFC. Gas diffusion layer plays an important role to deliver the reactant gases and to make generated water discharged out of the cell. This dual function, that is, gas diffusion and water discharge must work well. Hydrophilic and hydrophobic areas were intentionally synthesized by liquid phase deposition method. As a hydrophilic agent, TiO2 was used. Island like spots and grid like spots were evaluated and it turned out good performance with island like spots. Succeeding to this experiment , the island spots were aligned with gas flow channel and good cell performance was obtained.

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