Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition

doi:10.1039/c7sc05486f

	Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition
	Chu SQ(储胜启); Chen, R; Shan, B; Chu, SQ; Li, W; Tang, YT; Liu, X; Shen, MQ
刊名	CHEMICAL SCIENCE
	2018
卷号	9 期号:9 页码:2469-2473
ISSN号	2041-6520
DOI	10.1039/c7sc05486f
文献子类	Article
英文摘要	CO oxidation is a widely used model system for understanding fundamental aspects of heterogeneous catalysis. While platinum (Pt) continues to be a reference material for CO oxidation catalysis, poisoning of Pt catalysts presents a critical issue that blocks reaction sites and impedes subsequent reaction steps. Fabrication of CO poison-free Pt catalysts remains a great challenge due to its CO-philic nature. Herein, we report a Pt based catalyst to effectively tackle CO poisoning by tightly anchoring Pt sub-nanoclusters onto Mn-mullite oxide (SmMn2O5) via atomic layer deposition. Superior CO oxidation activity has been observed with a significantly lowered light-off temperature and apparent activation energy. In situ diffuse reflectance infrared Fourier transform spectroscopy analysis, oxygen isotope experiments and density functional theory calculations confirm that the low-temperature activity originates from active oxygen atom sources at the bifunctional interface structure.
电子版国际标准刊号	2041-6539
WOS关键词	WATER-GAS SHIFT ; CARBON-MONOXIDE ; PLATINUM NANOPARTICLES ; ROOM-TEMPERATURE ; CATALYSTS ; OXYGEN ; CLUSTERS ; SUPPORT ; SINGLE ; MECHANISM
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000431087700008
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285872]
专题	高能物理研究所_多学科研究中心高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Chu SQ,Chen, R,Shan, B,et al. Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition[J]. CHEMICAL SCIENCE,2018,9(9):2469-2473.
APA	储胜启.,Chen, R.,Shan, B.,Chu, SQ.,Li, W.,...&Shen, MQ.(2018).Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition.CHEMICAL SCIENCE,9(9),2469-2473.
MLA	储胜启,et al."Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition".CHEMICAL SCIENCE 9.9(2018):2469-2473.