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Plasmonic Electrons‐Driven Solar‐to‐Hydrocarbon Conversion over Au NR@ZnO Core‐Shell Nanostructures
Author(s) -
Shen Jinni,
Chen Zhenye,
Han Shitong,
Zhang Hongwen,
Xu Hailing,
Xu Chao,
Ding Zhengxin,
Yuan Rusheng,
Chen Jinquan,
Long Jinlin
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202000390
Subject(s) - plasmon , photocatalysis , materials science , nanorod , electron , oxide , photochemistry , nanostructure , nanotechnology , optoelectronics , chemistry , catalysis , organic chemistry , physics , quantum mechanics , metallurgy
This work demonstrates the long‐range redox reactivity of gold plasmon‐generated hot electrons for solar‐driven CO 2 conversion. A series of Au NR@ZnO core‐shell photocatalysts with a tunable shell thickness are rationally designed to achieve the solar‐to‐CH 4 conversion, where the hot plasmonic electrons‐induced photoreduction takes place on the polar oxide moiety. The shell thickness‐independent activity implies that the core, gold nanorods, plays a dominant role in the CH 4 generation. The ZnO metal oxide semiconductor shell is beneficial to prolong the lifetime of hot electrons, thereby enhancing the photocatalytic efficiency. However, the thickness of ZnO shell is not relevant to the production rate. Both of these two parts are co‐excited by solar light and synergetic enhance the photocatalytic activity.