High Catalytic Performance of Au/Bi2O3 for Preferential Oxidation of CO in H-2

doi:10.1021/acsami.1c04644

	High Catalytic Performance of Au/Bi2O3 for Preferential Oxidation of CO in H-2
	Chen, Jing 1; Wang, Changlai 1,3; Zong, Cichang 1,2; Chen, Shi 1; Wang, Pengcheng 1; Chen, Qianwang 1,2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2021-06-30
卷号	13
关键词	carbon monoxide bismuth gold heterogeneous catalysis density functional calculations
ISSN号	1944-8244
DOI	10.1021/acsami.1c04644
通讯作者	Chen, Qianwang(cqw@ustc.edu.cn)
英文摘要	Preferential oxidation (PROX) of CO in hydrogen is of great significance for proton exchange membrane fuel cells (PEMFCs) that need a CO-free hydrogen stream as fuel. The key technical problem is developing catalysts that can efficiently remove CO from the H-2-rich stream within the working temperature range of PEMFCs. Herein, we design a Au/Bi2O3 interfacial catalyst for PROX with excellent catalytic performance, which can achieve 100% CO conversion in the PROX reaction over a wide temperature window (70-200 degrees C) and is perfectly compatible with the operating temperature window (80-180 degrees C) of PEMFCs. Moreover, the catalyst also demonstrates excellent high flow performance and long-term stability. Density functional theory (DFT) calculations reveal that the electrons transferring from Bi2O3 to Au and then to adsorbed perimeter CO and O-2 molecules promote the activation of CO and O-2, thus enhancing the catalytic performance of PROX.
资助项目	National Key R&D Program of China[2016YFA0401801] ; Fundamental Research Funds for the Central Universities[WK2060000032] ; National Natural Science Foundation[51772283] ; National Natural Science Foundation[22072140] ; National Natural Science Foundation[21972145] ; Hong Kong Scholars Program[XJ2019022]
WOS关键词	CARBON-MONOXIDE ; HYDROXYL-GROUPS ; H-2-RICH STREAM ; HYDROGEN STREAM ; GOLD ; NANOPARTICLES ; SUPPORT ; SIZE ; ACTIVATION ; CERIA
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000670430100027
资助机构	National Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation ; Hong Kong Scholars Program
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123451]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Qianwang
作者单位	1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Anhui High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China 3.City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Dept Mat Sci & Engn, Kowloon, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jing,Wang, Changlai,Zong, Cichang,et al. High Catalytic Performance of Au/Bi2O3 for Preferential Oxidation of CO in H-2[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13.
APA	Chen, Jing,Wang, Changlai,Zong, Cichang,Chen, Shi,Wang, Pengcheng,&Chen, Qianwang.(2021).High Catalytic Performance of Au/Bi2O3 for Preferential Oxidation of CO in H-2.ACS APPLIED MATERIALS & INTERFACES,13.
MLA	Chen, Jing,et al."High Catalytic Performance of Au/Bi2O3 for Preferential Oxidation of CO in H-2".ACS APPLIED MATERIALS & INTERFACES 13(2021).