Site-Selective Deposition of a Cobalt Cocatalyst onto a Plasmonic Au/TiO2 Photoanode for Improved Water Oxidation

Okazaki, Megumi; Suganami, Yoshiki; Hirayama, Naoki; Nakata, Hiroko; Oshikiri, Tomoya; Yokoi, Toshiyuki; Misawa, Hiroaki; Maeda, Kazuhiko

Site-Selective Deposition of a Cobalt Cocatalyst onto a Plasmonic Au/TiO2 Photoanode for Improved Water Oxidation

Okazaki, Megumi; Suganami, Yoshiki; Hirayama, Naoki et al.

ACS applied energy materials, 2020, 3(6), 5142-5146

Permalink : https://hdl.handle.net/2115/79091

このアイテムのアクセス数:734件（2026-08-13 06:00 集計）

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ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.1021/acsaem.0c00857			22

論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/79091
タイトル	Site-Selective Deposition of a Cobalt Cocatalyst onto a Plasmonic Au/TiO2 Photoanode for Improved Water Oxidation
著者	Okazaki, Megumi ; Suganami, Yoshiki ; Hirayama, Naoki ; Nakata, Hiroko ; Oshikiri, Tomoya ; Yokoi, Toshiyuki ; Misawa, Hiroaki ; Maeda, Kazuhiko
著者名 Okazaki, Megumi
著者名 Suganami, Yoshiki
著者名 Hirayama, Naoki
著者名 Nakata, Hiroko
e-Rad_Researcher 60704567 著者名 Oshikiri, Tomoya
著者名 Yokoi, Toshiyuki
e-Rad_Researcher 30253230 著者名 Misawa, Hiroaki
著者名 Maeda, Kazuhiko
言語	英語
キーワード	artificial photosynthesis
	localized surface plasmon
	photocatalysis
	solar fuels
	water splitting
発行日	2020-06-22
出版者	American Chemical Society
収録物名	ACS applied energy materials
巻(号)	3(6)
ページ	5142-5146
抄録	Plasmonic Au/TiO2 thin film works as a stable water oxidation photoanode. Here we show that site-selective deposition of nanosized CoOx as a water oxidation cocatalyst at the edge of Au nanoparticles on the TiO2 film improves the photoelectrochemical water oxidation activity. The nanosized CoOx was deposited by a photoassisted electrochemical method onto the Au/TiO2 thin film. The CoOx loading amount was controllable by changing the amount of electric charge that flowed during the deposition, which influenced the photoelectrochemical performance. Under visible light, the optimized CoOx/Au/TiO2 thin film generated stable photoanodic current, which was similar to 3 times higher than that obtained using Au/TiO2.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
PISSN	2574-0962
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1021/acsaem.0c00857