TY  - INPR
KW  - charge separation
KW  -  direct methane conversion
KW  -  high selectivity
KW  -  oxygen vacancies
KW  -  Pd cocatalysts
AV  - public
N2  - Direct methane conversion to value-added chemicals through photocatalysis is promising but still has great challenges in both efficient activation of C?H bonds and suppression of over-oxidation. Herein, palladium nanoparticles and oxygen vacancies (OVs) co-modified TiO_{2} photocatalysts are prepared and employed for photocatalytic CH_{4} conversion at room temperature. Under optimized conditions with O_{2} and water as the oxidants, a high yield of liquid oxygenates, e.g., 54?693??mol?g^{?1}?h^{?1} with a nearly 100% selectivity has been achieved. Mechanism investigations reveal that Pd and OVs synergistically promote charge separation, with Pd and OVs acting as hole and electron acceptors, respectively. Isotopic experiments elucidate that both H_{2}O and O_{2} are oxygen sources for oxygenate production, where O_{2} is the predominant one.
ID  - discovery10155671
UR  - https://doi.org/10.1002/solr.202200335
N1  - © 2022 The Authors. Solar RRL published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).
EP  - 9
A1  - Gong, Zhuyu
A1  - Luo, Lei
A1  - Wang, Chao
A1  - Tang, Junwang
Y1  - 2022/09/04/
JF  - Solar RRL
TI  - Photocatalytic Methane Conversion to C1 Oxygenates over Palladium and Oxygen Vacancies Co-Decorated TiO_{2}
PB  - WILEY-V C H VERLAG GMBH
ER  -