Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO2 Reforming of CH4 in a Fluidized-Bed Reactor

doi:10.1002/aic.16393

	Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO2 Reforming of CH4 in a Fluidized-Bed Reactor
	Li, Jun 1; Li, Jianwei 1; Zhu, Qingshan 1,2; Peng, Wencai 3; Li, Hongzhong 1
刊名	AICHE JOURNAL
	2019
卷号	65 期号:1 页码:120-131
关键词	hierarchical particles Co-MgO CO2 reforming fluidized-bed
ISSN号	0001-1541
DOI	10.1002/aic.16393
英文摘要	This work reports facile fabrication of fluidizable hierarchical Co-MgO particles with high dispersion of Co nanoparticles (NPs) and high surface oxygen vacancies for matching with the fluidized-bed reactor. The hierarchical Co-MgO catalyst exhibits higher activity and thermal stability for CH4-CO2 reforming than the conventional impregnation Co/MgO catalyst. The enhanced prevention of Co NPs sintering of the hierarchical Co-MgO catalyst is attributed to the multilayer structure and the exposed MgO (111) face, which creates high surface oxygen vacancies, induces high Co dispersion to restrain Co NPs sintering, and supplies high resistance to graphite carbon deposition. A formation mechanism for the hierarchical MgO structure is also proposed. This formation of incomplete rhombohedron MgO particles with an exposed octahedral MgO (111) face is attributed to the electrostatic interaction of OH-. The proposed approach to improving catalytic activity by creation of hierarchical MgO particles can be expanded to other metal oxide catalysts. (c) 2018 American Institute of Chemical Engineers AIChE J, 65: 120-131, 2019
资助项目	National Natural Science Foundation of China[21736010] ; National Natural Science Foundation of China[U1462128] ; National Natural Science Foundation of China[91334108] ; State Key Development Program for Basic Research of China[2015CB251402]
WOS关键词	CARBON-DIOXIDE ; SYNTHESIS GAS ; SYNGAS PRODUCTION ; AEROGEL CATALYST ; ACTIVE METAL ; METHANE ; PERFORMANCE ; TRANSITION ; NANOTUBES ; RU
WOS研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000454632100012
资助机构	National Natural Science Foundation of China ; State Key Development Program for Basic Research of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/27710]
专题	中国科学院过程工程研究所
通讯作者	Zhu, Qingshan; Peng, Wencai
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 3.Shihezi Univ, Sch Chem & Chem Engn, Shihezi 832000, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Li, Jun,Li, Jianwei,Zhu, Qingshan,et al. Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO2 Reforming of CH4 in a Fluidized-Bed Reactor[J]. AICHE JOURNAL,2019,65(1):120-131.
APA	Li, Jun,Li, Jianwei,Zhu, Qingshan,Peng, Wencai,&Li, Hongzhong.(2019).Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO2 Reforming of CH4 in a Fluidized-Bed Reactor.AICHE JOURNAL,65(1),120-131.
MLA	Li, Jun,et al."Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO2 Reforming of CH4 in a Fluidized-Bed Reactor".AICHE JOURNAL 65.1(2019):120-131.