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Rules for Selecting Metal Cocatalyst Based on Charge Transfer and Separation Efficiency between ZnO Nanoparticles and Noble Metal Cocatalyst Ag/ Au/ Pt
Author(s) -
Liu Qianxia,
Wang Zhuan,
Chen Hailong,
Wang HaoYi,
Song Hui,
Ye Jinhua,
Weng Yuxiang
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001091
Subject(s) - nanoparticle , materials science , electron transfer , metal , schottky barrier , semiconductor , noble metal , photocatalysis , ohmic contact , catalysis , layer (electronics) , chemical engineering , photochemistry , nanotechnology , chemistry , optoelectronics , metallurgy , diode , biochemistry , engineering
The Front Cover shows a strategy consisting of dual metal cocatalysts on nanoparticles of a semiconductor photocatalyst. In their Communication, Q. Liu et al. found that ohmic contact of Ag on ZnO favors electron transfer and charge separation, whereas Schottky junction between Pt or Au and ZnO prevents electron transfer, as shown by an ultrafast mid‐IR transient absorption spectroscopic study of interfacial charge transfer and separation efficiencies for ZnO nanoparticles and metal (Ag, Au and Pt) cocatalysts. The inner‐layer contacting metal of the dual metal cocatalyst effects the efficient charge transfer and acts as electron shuttle, and the outer‐layer metal plays the main role in the optimal chemical catalysis. More information can be found in the Communication by Q. Liu et al.