eprintid: 10196574
rev_number: 8
eprint_status: archive
userid: 699
dir: disk0/10/19/65/74
datestamp: 2024-09-04 09:24:20
lastmod: 2024-09-04 09:24:20
status_changed: 2024-09-04 09:24:20
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Wang, Chao
creators_name: Xu, Youxun
creators_name: Xiong, Lunqiao
creators_name: Li, Xiyi
creators_name: Chen, Enqi
creators_name: Miao, Tina Jingyan
creators_name: Zhang, Tianyu
creators_name: Lan, Yang
creators_name: Tang, Junwang
title: Selective oxidation of methane to C2+ products over Au-CeO2 by photon-phonon co-driven catalysis.
ispublished: pub
divisions: UCL
divisions: B04
divisions: F43
keywords: Heterogeneous catalysis, Photocatalysis
note: © 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/
abstract: 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 μmol h−1 (15,100 μmol 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.
date: 2024-08-30
date_type: published
publisher: Springer Science and Business Media LLC
official_url: https://doi.org/10.1038/s41467-024-51690-2
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2308869
doi: 10.1038/s41467-024-51690-2
medium: Electronic
pii: 10.1038/s41467-024-51690-2
lyricists_name: Tang, Junwang
lyricists_name: Lan, Yang
lyricists_id: JTANG13
lyricists_id: YLANX71
actors_name: Lan, Yang
actors_id: YLANX71
actors_role: owner
funding_acknowledgements: 22250710677 [National Science Foundation of China | National Natural Science Foundation of China-Yunnan Joint Fund (NSFC-Yunnan Joint Fund)]; EP/ S018204/2 [RCUK | Engineering and Physical Sciences Research Council (EPSRC)]
full_text_status: public
publication: Nature Communications
volume: 15
article_number: 7535
event_location: England
issn: 2041-1723
citation:        Wang, Chao;    Xu, Youxun;    Xiong, Lunqiao;    Li, Xiyi;    Chen, Enqi;    Miao, Tina Jingyan;    Zhang, Tianyu;         ... Tang, Junwang; + view all <#>        Wang, Chao;  Xu, Youxun;  Xiong, Lunqiao;  Li, Xiyi;  Chen, Enqi;  Miao, Tina Jingyan;  Zhang, Tianyu;  Lan, Yang;  Tang, Junwang;   - view fewer <#>    (2024)    Selective oxidation of methane to C2+ products over Au-CeO2 by photon-phonon co-driven catalysis.                   Nature Communications , 15     , Article 7535.  10.1038/s41467-024-51690-2 <https://doi.org/10.1038/s41467-024-51690-2>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10196574/2/Lan_s41467-024-51690-2.pdf