2024-03-28T21:46:28Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/885972023-03-24T17:00:23Zhdl_2115_20045hdl_2115_139Reaction Products Affecting the PEFC Catalyst Ink Property1000070515163Uemura, SuguruSasabe, TakashiSakai, KatsunoriMatsumoto, HidetoshiSugimori, HidekazuShinohara, KazuhikoHirai, Shuichiroopen access© The Electrochemical Society, Inc. [2021]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Suguru Uemura et al 2021 J. Electrochem. Soc. 168 104504.431Catalyst ink is a key material of the catalyst layer in a proton exchange membrane fuel cell, but can be degraded as the reactions of alcohols are promoted by Pt in the ink. The present study quantitatively determined the concentrations of reaction products in an ethanol/water-based catalyst ink, and the effects of these substances on the ink and catalyst layer were investigated. The acetaldehyde concentration was found to be the key factor, as acetaldehyde caused particle agglomeration in the catalyst ink and micro-scale crack formation in the catalyst layer.The Electrochemical Society (ECS)2021-10-22journal articleAMhttp://hdl.handle.net/2115/88597https://doi.org/10.1149/1945-7111/ac26840013-46511945-7111Journal of The Electrochemical Society16810104504https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/88597/1/43826_J2104-157991-Uemura_1st_edit_TrackedCopy_uemura_rev4_clear.pdfapplication/pdf4.98 MB2021-10-22