Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites

NWIPB OpenIR

	Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites
	Sun, Yukun; Gao, Yang; He, Chi; Song, Weiyu; Jiang, Zeyu; Albilali, Reem; Bai, Bo
	2021
发表期刊	CATALYSIS SCIENCE & TECHNOLOGY
卷号	11 期号:11
摘要	It is of great significance to design highly active and stable catalysts for CO oxidation. Herein, a Pt/In-SnO2 catalyst was firstly fabricated via a facile hydrothermal reaction coupled with photoreduction strategy, achieving 1 vol% of CO totally oxidized at just 145 degrees C, over 200 degrees C lower than that of Pt/SnO2. Moreover, Pt/In-SnO2 demonstrates superior catalytic stability and recyclability under both dry and humid conditions. Incorporation of In cations results in marked structure distortion of SnO2, promoting the formation of oxygen vacancies and enhancing the concentration and mobility of reactive oxygen species. Abundant Pt sites over Pt/In-SnO2 further accelerate CO adsorption and activation. Density functional theory results prove that the energy barrier of CO oxidation reduces from 0.85 to 0.75 eV after In doping and the produced CO2 can desorb spontaneously from the catalyst surface, which accelerates the CO oxidation process. This work provides new ideas for designing robust catalysts for low-temperature CO elimination.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60819
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Sun, Yukun,Gao, Yang,He, Chi,et al. Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021,11(11).
APA	Sun, Yukun.,Gao, Yang.,He, Chi.,Song, Weiyu.,Jiang, Zeyu.,...&Bai, Bo.(2021).Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites.CATALYSIS SCIENCE & TECHNOLOGY,11(11).
MLA	Sun, Yukun,et al."Efficient and stable low-temperature CO oxidation over Pt/In-SnO2 composite triggered by abundant oxygen vacancies and adsorption sites".CATALYSIS SCIENCE & TECHNOLOGY 11.11(2021).