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

文献类型：期刊论文

作者Duan, Huimei1,2; You, Rui1,2; Xu, Shutao3; Li, Zhaorui1,2; Qian, Kun1,2; Cao, Tian1,2; Huang, Weixin1,2; Bao, Xinhe1,2,3
刊名ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
出版日期2019-07-24
页码7
关键词atomic layer deposition heterogeneous catalysis oxidation palladium reduction
ISSN号1433-7851
DOI10.1002/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.
WOS关键词ATOMIC LAYER DEPOSITION ; THIN-FILM GROWTH ; AL-27 MAS NMR ; CO ADSORPTION ; PD/AL2O3 ; SITES ; OXIDATION ; OXIDE ; SCALE ; WATER
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研究方向Chemistry
语种英语
WOS记录号WOS:000478411400001
出版者WILEY-V C H VERLAG GMBH
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
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.

入库方式： OAI收割

来源：大连化学物理研究所

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