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Citation: Bin Shao, Wenning Zhao, Shu Miao, Jiahui Huang, Lili Wang, Gao Li, Wenjie Shen. Facet-dependent anchoring of gold nanoparticles on TiO₂ for CO oxidation[J]. Chinese Journal of Catalysis, ;2019, 40(10): 1534-1539. doi: S1872-2067(19)63388-7 shu

Facet-dependent anchoring of gold nanoparticles on TiO₂ for CO oxidation

Bin Shao ^a,b,c, ,
Wenning Zhao ^a,c ,
Shu Miao ^a ,
Jiahui Huang ^a,b ,
Lili Wang ^a,b ,
Gao Li ^a ,
Wenjie Shen ^a

a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b Gold Catalysis of Research Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
c University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 26 June 2019
Revised Date: 27 July 2019

Fund Project: This work was supported by Liaoning Revitalization Talents Program (XLYC1807121) and National Natural Science Foundation of China (20673054).

The interfacial perimeter of gold nanocatalysts is popularly viewed as the active sites for a number of chemical reactions, while the geometrical structure of the interface at atomic scale is less known. Here, TiO₂-nanosheets and nanospindles were adapted to accommodate Au particles (~2.2 nm), forming Au-TiO₂{001} and Au-TiO₂{101} interfaces. Upon calcination at 623 K in air, HAADF-STEM images evidenced that the Au particles on TiO₂{101} enlarged to 3.1 nm and these on TiO₂{001} remained unchanged, suggesting the stronger metal-support interaction on TiO₂{001}. Au/TiO₂{001} was more active for CO oxidation than Au/TiO₂{101} system.
- Au nanoparticles,
- Titanium dioxide,
- Stability,
- Interfacial perimeter,
- CO oxidation
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Facet-dependent anchoring of gold nanoparticles on TiO₂ for CO oxidation