典型文献
Au cluster anchored on TiO2/Ti3C2 hybrid composites for efficient photocatalytic CO2 reduction
文献摘要:
The size of metal nanoparticles is a key factor to enhance the photocatalytic activity of photocatalysts.However,the mechanism of this factor to the improvement of photocatalytic CO2 reduction performance is still unclear.Here,Au cluster/TiO2/Ti3C2 and Au nanoparticle/TiO2/Ti3C2 were successfully prepared by deposition-precipitation method.The experimental results show that the photocatalytic CO2 reduction performance of Au cluster/TiO2/Ti3C2 with quantum size effect is stronger than that of Au nanoparticle/TiO2/Ti3C2 with surface plasmon resonance.The enhanced photocatalytic CO2 reduction activity is assigned to the establishment of an overlapping orbital between the lowest unoccupied molecular orbital(LUMO)of the Au cluster and the anti-bonding orbital of CO2,which greatly promotes the acti-vation efficiency of CO2.The existence of Au cluster and the mechanism of photocatalytic CO2 reduction perfor-mance were certified by high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)and in situ Fourier transform infrared spectroscopy(ISFTIR).This work may open new opportunities for the establishment of stable and active metal nanocatalysts.
文献关键词:
中图分类号:
作者姓名:
Yang Li;Ya-Li Yang;Gui Chen;Jia-Jie Fan;Quan-Jun Xiang
作者机构:
School of Environment and Civil Engineering,Dongguan University of Technology,Dongguan 523808,China;State Key Laboratory of Electronic Thin Film and Integrated Devices,School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China;Yangtze Delta Region Institute(Huzhou),University of Electronic Science and Technology of China,Huzhou 313001,China;School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China
文献出处:
引用格式:
[1]Yang Li;Ya-Li Yang;Gui Chen;Jia-Jie Fan;Quan-Jun Xiang-.Au cluster anchored on TiO2/Ti3C2 hybrid composites for efficient photocatalytic CO2 reduction)[J].稀有金属(英文版),2022(09):3045-3059
A类:
ISFTIR
B类:
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AB值:
0.539048
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