標題: Site-Selective Deposition of a Cobalt Cocatalyst onto a Plasmonic Au/TiO2 Photoanode for Improved Water Oxidation
作者: Okazaki, Megumi
Suganami, Yoshiki
Hirayama, Naoki
Nakata, Hiroko
Oshikiri, Tomoya
Yokoi, Toshiyuki
Misawa, Hiroaki
Maeda, Kazuhiko
交大名義發表
National Chiao Tung University
關鍵字: artificial photosynthesis;localized surface plasmon;photocatalysis;solar fuels;water splitting
公開日期: 22-六月-2020
摘要: 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.
URI: http://dx.doi.org/10.1021/acsaem.0c00857
http://hdl.handle.net/11536/154989
ISSN: 2574-0962
DOI: 10.1021/acsaem.0c00857
期刊: ACS APPLIED ENERGY MATERIALS
Volume: 3
Issue: 6
起始頁: 5142
結束頁: 5146
顯示於類別:期刊論文