Ultrastable titania-supported Au nanoparticles covered by chromia via photo-induced strategy for low-temperature CO oxidation

Jie Chen; Fuying Huang; Qing Wang; Yongjun Huang; Xingxiang Ye; Fengying Zheng; Shunxing Li

Catalysis Communications (Jan 2021)

Ultrastable titania-supported Au nanoparticles covered by chromia via photo-induced strategy for low-temperature CO oxidation

Jie Chen,
Fuying Huang,
Qing Wang,
Yongjun Huang,
Xingxiang Ye,
Fengying Zheng,
Shunxing Li

Affiliations

Jie Chen: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, China; Corresponding authors at: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China.
Fuying Huang: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, China
Qing Wang: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China
Yongjun Huang: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China
Xingxiang Ye: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China
Fengying Zheng: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, China
Shunxing Li: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China; Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, China; Corresponding authors at: College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China.

Journal volume & issue: Vol. 149
p. 106199

Abstract

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Here we report the design and preparation of an ultrastable Au nanocatalyst through a photo-deposition strategy at room temperature, in which Au nanoparticles were covered by an island-like dispersed Cr2O3 overlayer. The latter was induced by the excited electrons in the TiO2 conduction band transferred to the Au nanoparticle. The resulting titania-supported Au catalyst promoted by chromia is resistant to sintering and exhibits excellent activity and stability in the low-temperature CO oxidation reaction and air atmosphere.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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