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Photo-assisted methanol synthesis via CO2 reduction under ambient pressure over plasmonic Cu/ZnO catalysts

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Title: Photo-assisted methanol synthesis via CO2 reduction under ambient pressure over plasmonic Cu/ZnO catalysts
Authors: Wang, Zhou-jun Browse this author
Song, Hui Browse this author
Pang, Hong Browse this author
Ning, Yanxiao Browse this author
Thang Duy Dao Browse this author
Wang, Zhuan Browse this author
Chen, Hailong Browse this author
Weng, Yuxiang Browse this author
Fu, Qiang Browse this author
Nagao, Tadaaki Browse this author
Fang, Yunming Browse this author
Ye, Jinhua Browse this author →KAKEN DB
Keywords: Photocatalysis
Carbon dioxide
Surface plasmon resonance
Issue Date: 5-Aug-2019
Publisher: Elsevier
Journal Title: Applied Catalysis B-environmental
Volume: 250
Start Page: 10
End Page: 16
Publisher DOI: 10.1016/j.apcatb.2019.03.003
Abstract: Methanol synthesis via carbon dioxide (CO2) reduction is challenging and important because this technology can convert CO2 by solar- or wind-generated hydrogen into liquid fuel. The present work introduces the visible light as an external stimulus and for the first time demonstrates that methanol synthesis over Cu/ZnO catalysts can be effectively promoted by solar energy under atmospheric pressure. Experimental and theoretical studies document that hot electrons were photo-excited by localized surface plasmon resonance (LSPR) on Cu nanoparticles and such photo-excited hot electrons could transfer to ZnO through the metal-support interfaces. The hot electrons on Cu and ZnO synergistically facilitated the activation of reaction intermediates. Consequently, the activation energy was reduced by 40% and the methanol synthesis activity was promoted by 54%. This work provides a new strategy towards synthesis of liquid fuel via CO2 reduction under low pressure and sheds new light on the mechanism of photo-mediated catalysis.
Rights: © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:総合化学院 (Graduate School of Chemical Sciences and Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 葉 金花

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