Pentacoordinated Al3+-Stabilized Active Pd Structures on Al2O3-Coated Palladium Catalysts for Methane Combustion

doi:10.1002/anie.201904883

	Pentacoordinated Al3+-Stabilized Active Pd Structures on Al2O3-Coated Palladium Catalysts for Methane Combustion
	Duan, Huimei 1,2; You, Rui 1,2; Xu, Shutao 3; Li, Zhaorui 1,2; Qian, Kun 1,2; Cao, Tian 1,2; Huang, Weixin 1,2; Bao, Xinhe 1,2,3
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2019-07-24
页码	7
关键词	atomic layer deposition heterogeneous catalysis oxidation palladium reduction
ISSN号	1433-7851
DOI	10.1002/anie.201904883
通讯作者	Huang, Weixin(huangwx@ustc.edu.cn)
英文摘要	Supported Pd catalysts are active in catalyzing the highly exothermic methane combustion reaction but tend to be deactivated owing to local hyperthermal environments. Herein we report an effective approach to stabilize Pd/SiO2 catalysts with porous Al2O3 overlayers coated by atomic layer deposition (ALD). Al-27 magic angle spinning NMR analysis showed that Al2O3 overlayers on Pd particles coated by the ALD method are rich in pentacoordinated Al3+ sites capable of strongly interacting with adjacent surface PdOx phases on supported Pd particles. Consequently, Al2O3-decorated Pd/SiO2 catalysts exhibit active and stable PdOx and Pd-PdOx structures to efficiently catalyze methane combustion between 200 and 850 degrees C. These results reveal the unique structural characteristics of Al2O3 overlayers on metal surfaces coated by the ALD method and provide a practical strategy to explore stable and efficient supported Pd catalysts for methane combustion.
资助项目	National Key R & D Program of the Ministry of Science and Technology of China[2017YFB0602205] ; National Natural Science Foundation of China[21525313] ; National Natural Science Foundation of China[91745202] ; National Natural Science Foundation of China[21703227] ; Chinese Academy of Sciences ; Changjiang Scholars Program of the Chinese Ministry of Education
WOS关键词	ATOMIC LAYER DEPOSITION ; THIN-FILM GROWTH ; AL-27 MAS NMR ; CO ADSORPTION ; PD/AL2O3 ; SITES ; OXIDATION ; OXIDE ; SCALE ; WATER
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000478411400001
资助机构	National Key R & D Program of the Ministry of Science and Technology of China ; National Key R & D Program of the Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Changjiang Scholars Program of the Chinese Ministry of Education ; Changjiang Scholars Program of the Chinese Ministry of Education ; National Key R & D Program of the Ministry of Science and Technology of China ; National Key R & D Program of the Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Changjiang Scholars Program of the Chinese Ministry of Education ; Changjiang Scholars Program of the Chinese Ministry of Education ; National Key R & D Program of the Ministry of Science and Technology of China ; National Key R & D Program of the Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Changjiang Scholars Program of the Chinese Ministry of Education ; Changjiang Scholars Program of the Chinese Ministry of Education ; National Key R & D Program of the Ministry of Science and Technology of China ; National Key R & D Program of the Ministry of Science and Technology of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Changjiang Scholars Program of the Chinese Ministry of Education ; Changjiang Scholars Program of the Chinese Ministry of Education
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/173897]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Huang, Weixin
作者单位	1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci, Microscale Key Lab Surface & Interface Chem & Ene, Anhui Higher Educ Inst,CAS Key Lab Mat Energy Con, Jinzhai Rd 96, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Chem Phys, Jinzhai Rd 96, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Duan, Huimei,You, Rui,Xu, Shutao,et al. Pentacoordinated Al3+-Stabilized Active Pd Structures on Al2O3-Coated Palladium Catalysts for Methane Combustion[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2019:7.
APA	Duan, Huimei.,You, Rui.,Xu, Shutao.,Li, Zhaorui.,Qian, Kun.,...&Bao, Xinhe.(2019).Pentacoordinated Al3+-Stabilized Active Pd Structures on Al2O3-Coated Palladium Catalysts for Methane Combustion.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,7.
MLA	Duan, Huimei,et al."Pentacoordinated Al3+-Stabilized Active Pd Structures on Al2O3-Coated Palladium Catalysts for Methane Combustion".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019):7.