First-principles kinetics study of carbon monoxide promoted Ostwald ripening of Au particles on FeO/Pt(111)

doi:10.1016/j.jechem.2018.03.023

	First-principles kinetics study of carbon monoxide promoted Ostwald ripening of Au particles on FeO/Pt(111)
	Ouyang, Runhai 1,4; Hu, Sulei 1,4; Li, Wei-Xue 1,2,3
刊名	JOURNAL OF ENERGY CHEMISTRY
	2019-03-01
卷号	30 页码:108-113
关键词	Carbon monoxide Au particles Ostwald ripening First-principles kinetics FeO/Pt(111)
ISSN号	2095-4956
DOI	10.1016/j.jechem.2018.03.023
通讯作者	Li, Wei-Xue(wxli70@ustc.edu.cn)
英文摘要	The dynamic and kinetic evolution of supported metal particles in the presence of reactants is decisive in shaping the nature of the catalytic active sites and the deactivation process. Ostwald ripening of FeO/Pt(111) supported Au particles in the presence of carbon monoxide is addressed here by first-principles kinetics. It is found that CO stabilizes the ripening monomer (Au atom) by forming favorable Au carbonyls with lower total activation energy, and corresponding phase diagram at wide range of temperature and CO pressures is constructed. Evolution of particle number, dispersion and particle size distribution of supported Au particles are explored. Great influence of CO promotion on ripening kinetics is revealed and explored in details, and mbar range of CO can lower the onset temperature of ripening by a few hundred kelvins. The present work reveals the crucial role of the metal-reactant complexes formed under reaction conditions on ripening of metal catalysts. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
资助项目	National Key R&D Program of China[2017YB0602205] ; National Natural Science Foundation of China[91645202] ; Chinese Academy of Sciences[QYZDJ-SSW-SLH054]
WOS关键词	SURFACE SELF-DIFFUSION ; OXIDE SURFACES ; ELEVATED PRESSURES ; CO OXIDATION ; METAL NANOPARTICLES ; CATALYTIC-ACTIVITY ; MODEL CATALYSTS ; GOLD CLUSTERS ; SHAPE CHANGES ; IN-SITU
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000457878900015
资助机构	National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166080]
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	Li, Wei-Xue
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Chem & Mat Sci, CAS Excellence Ctr Nanosci, Dept Chem Phys,iCHeM, Hefei 230026, Anhui, Peoples R China 3.Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ouyang, Runhai,Hu, Sulei,Li, Wei-Xue. First-principles kinetics study of carbon monoxide promoted Ostwald ripening of Au particles on FeO/Pt(111)[J]. JOURNAL OF ENERGY CHEMISTRY,2019,30:108-113.
APA	Ouyang, Runhai,Hu, Sulei,&Li, Wei-Xue.(2019).First-principles kinetics study of carbon monoxide promoted Ostwald ripening of Au particles on FeO/Pt(111).JOURNAL OF ENERGY CHEMISTRY,30,108-113.
MLA	Ouyang, Runhai,et al."First-principles kinetics study of carbon monoxide promoted Ostwald ripening of Au particles on FeO/Pt(111)".JOURNAL OF ENERGY CHEMISTRY 30(2019):108-113.