Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts

doi:10.1002/anie.201801103

	Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts
	Rong, HP; Xin, PY; Li, J; Xiong, Y; Wu, X; Dong, JC; Chen, WX; Wang, Y; Gu, L; Luo, J
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2018
卷号	57 期号:17 页码:4642-4646
关键词	aerobic oxidation benzyl alcohol palladium clusters single atom catalysts supported catalysts
ISSN号	1433-7851
DOI	10.1002/anie.201801103
文献子类	Article
英文摘要	The active species in supported metal catalysts are elusive to identify, and large quantities of inert species can cause significant waste. Herein, using a stoichiometrically precise synthetic method, we prepare atomically dispersed palladium-cerium oxide (Pd-1/CeO2) and hexapalladium cluster-cerium oxide (Pd-6/CeO2), as confirmed by spherical-aberration-corrected transmission electron microscopy and X-ray absorption fine structure spectroscopy. For aerobic alcohol oxidation, Pd-1/CeO2 shows extremely high catalytic activity with a TOF of 6739 h(-1) and satisfactory selectivity (almost 100% for benzaldehyde), while Pd-6/CeO2 is inactive, indicating that the true active species are single Pd atoms. Theoretical simulations reveal that the bulkier Pd-6 clusters hinder the interactions between hydroxy groups and the CeO2 surface, thus suppressing synergy of Pd-Ce perimeter.
电子版国际标准刊号	1521-3773
WOS关键词	SINGLE-ATOM ; METAL NANOPARTICLES ; BENZYL ALCOHOL ; GOLD ; PD ; HYDROGENATION ; DEHYDRATION ; REACTIVITY ; MECHANISM ; GRAPHENE
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000430165700034
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285830]
专题	高能物理研究所_多学科研究中心
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	Rong, HP,Xin, PY,Li, J,et al. Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(17):4642-4646.
APA	Rong, HP.,Xin, PY.,Li, J.,Xiong, Y.,Wu, X.,...&Chen, C.(2018).Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(17),4642-4646.
MLA	Rong, HP,et al."Revealing the Active Species for Aerobic Alcohol Oxidation by Using Uniform Supported Palladium Catalysts".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.17(2018):4642-4646.