RT journal article
T1 PdCu nanoalloy decorated photocatalysts for efficient and selective oxidative coupling of methane in flow reactors
A1 Li, Xiyi
A1 Wang, Chao
A1 Yang, Jianlong
A1 Xu, Youxun
A1 Yang, Yi
A1 Yu, Jiaguo
A1 Delgado Jaén, Juan José
A1 Martsinovich, Natalia
A1 Sun, Xiao
A1 Zheng, Xu-Sheng
A1 Huang, Weixin
A1 Tang, Junwang
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 carbon
K1 coke
K1 copper
K1 hydrogen
K1 metal alloy nanoparticle
K1 methane
K1 palladium
K1 titanium dioxide
K1 adsorption
K1 alloy
K1 catalyst
K1 methane
K1 nanoparticle
K1 photodegradation
K1 turnover
K1 adsorption
K1 Article
K1 chemical bond
K1 controlled study
K1 density functional theory
K1 molecular stability
K1 oxidative coupling
K1 photocatalysis
K1 quantum mechanics
K1 reaction analysis
K1 room temperature
K1 turnover number
AB Methane activation by photocatalysis is one of the promising sustainable technologies for chemical synthesis. However, the current efficiency and stability of the process are moderate. Herein, a PdCu nanoalloy (~2.3 nm) was decorated on TiO2, which works for the efficient, stable, and selective photocatalytic oxidative coupling of methane at room temperature. A high methane conversion rate of 2480 μmol g−1 h−1 to C2 with an apparent quantum efficiency of ~8.4% has been achieved. More importantly, the photocatalyst exhibits the turnover frequency and turnover number of 116 h−1 and 12,642 with respect to PdCu, representing a record among all the photocatalytic processes (λ > 300 nm) operated at room temperature, together with a long stability of over 112 hours. The nanoalloy works as a hole acceptor, in which Pd softens and weakens C-H bond in methane and Cu decreases the adsorption energy of C2 products, leading to the high efficiency and long-time stability.
PB Nature Research
SN 2041-1723
YR 2023
FD 2023
LK http://hdl.handle.net/10498/32278
UL http://hdl.handle.net/10498/32278
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 15-nov-2026