Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces. Issue 2 (15th January 2018)

• Record Type: Journal Article
• Authors: Meng, Lingshu; Chen, Zhenye; Ma, Zhiyun; He, Sha; Hou, Yidong; Li, Hao-Hong; Yuan, Rusheng; Huang, Xi-He; Wang, Xuxu; Wang, Xinchen; Long, Jinlin
• Is Part Of: Energy & environmental science. Volume 11:Issue 2(2018)
• Page Start: 294
• Page End: 298
• Publication Date: 2018-01-15
• Subjects: Energy conversion -- Periodicals; Fuel switching -- Periodicals; Environmental sciences -- Periodicals; Environmental chemistry -- Periodicals; 333.79
• DOI: 10.1039/c7ee02951a
• Languages: English
• ISSNs: 1754-5692

Abstract

Abstract : Au-Plasmon-induced resonance energy transfer modulates the charge carrier energetics of ZnO nanosheets to trigger the stoichiometric conversion of methane into ethane and hydrogen. Abstract : This work shows the solar-driven dehydrogenative coupling of methane to ethane at room temperature. A solar-to-C2 H6 energy conversion efficiency of 0.08% was achieved on the polar surface of Au/ZnO porous nanosheets (NSs), where methane C–H bonds are polarized and dissociated by the local electric field normal to the polar {001} plane, and finally converted into ethane and hydrogen through a radical coupling pathway. Mechanistic studies suggest that the Au-plasmon-induced resonance energy transfer modulates charge carrier energetics to trigger the stoichiometric conversion. Hot electrons reduce protons to H2, which is the rate-determining step of methane coupling.