カテゴリ: 論文誌(論文単位)グループ名: 【B】電力・エネルギー部門発行日: 2021/04/01タイトル(英語): Performance Improvement of Platinum-based Electrocatalyst Layer for PEFC by Mixing Single Walled Carbon Nanotubes著者名: 岸田 和樹（豊橋技術科学大学），針谷 達（豊橋技術科学大学），滝川 浩史（豊橋技術科学大学），橋本 剛（（株）名城ナノカーボン）著者名(英語): Kazuki Kishida (Toyohashi University of Technology), Toru Harigai (Toyohashi University of Technology), Hirofumi Takikawa (Toyohashi University of Technology), Takeshi Hashimoto (Meijo Nano Carbon Co., Ltd.)キーワード: 固体高分子形燃料電池（PEFC），カソード電極触媒，単層カーボンナノチューブ（SWCNT），バンドル，サイクリックボルタンメトリ（CV），電気化学比表面積（ECSA） polymer electrolyte fuel cell，cathodic electrocatalyst，single walled carbon nanotube，bundle，cyclic voltammetry，electrochemical surface area要約(英語): It is possible that the mixture of single walled carbon nanotubes (SWCNTs) with high crystallinity and narrow diameter improve the catalyst layer performance of polymer electrolyte fuel cells (PEFC). In this study, Pt-based catalysts mixed with SWCNTs are prepared as the electrocatalysts for PEFC. The electrochemical properties of the catalyst layer mixed with SWCNTs were investigated by cyclic voltammetry (CV) under difference scanning conditions. The catalyst layers with SWCNTs showed significantly high electrochemical surface area (ECSA) under the high scanning rate on CV compared with the catalyst layer without SWCNTs. It was found that SWCNTs in the catalyst layer had a bundle structure and the bundles increased gaps between carbon supports used for Pt-based catalysts. SWCNT bundles contributed as conductive paths inside of the catalyst layers and improved porous structures in the catalyst layers. The improvement of the porous structures increased Pt nanoparticles functioned as the catalyst. Therefore, the mixture of SWCNTs leaded to improve the catalyst layer performance.本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.141 No.4 （2021）本誌掲載ページ: 316-321 p原稿種別: 論文／日本語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/141/4/141_316/_article/-char/ja/
