TY  - JOUR
N2  - Direct methane conversion to high-value chemicals under mild conditions is attractive yet challenging due to the inertness of methane and the high reactivity of valuable products. This work presents an efficient and selective strategy to achieve direct methane conversion through the oxidative coupling of methane over a visible-responsive Au-loaded CeO2 by photon-phonon co-driven catalysis. A record-high ethane yield of 755??mol h?1 (15,100??mol g?1 h?1) and selectivity of 93% are achieved under optimised reaction conditions, corresponding to an apparent quantum efficiency of 12% at 365?nm. Moreover, the high activity of the photocatalyst can be maintained for at least 120?h without noticeable decay. The pre-treatment of the catalyst at relatively high temperatures introduces oxygen vacancies, which improves oxygen adsorption and activation. Furthermore, Au, serving as a hole acceptor, facilitates charge separation, inhibits overoxidation and promotes the C-C coupling reaction. All these enhance photon efficiency and product yield.
VL  - 15
PB  - Springer Science and Business Media LLC
Y1  - 2024/08/30/
A1  - Wang, Chao
A1  - Xu, Youxun
A1  - Xiong, Lunqiao
A1  - Li, Xiyi
A1  - Chen, Enqi
A1  - Miao, Tina Jingyan
A1  - Zhang, Tianyu
A1  - Lan, Yang
A1  - Tang, Junwang
ID  - discovery10196574
SN  - 2041-1723
N1  - © The Author(s), 2024. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/
JF  - Nature Communications
AV  - public
UR  - https://doi.org/10.1038/s41467-024-51690-2
KW  - Heterogeneous catalysis
KW  -  Photocatalysis
TI  - Selective oxidation of methane to C2+ products over Au-CeO2 by photon-phonon co-driven catalysis.
ER  -