Engineering order mesoporous CeCoOx catalyst via in-situ confined encapsulation strategy for VOCs catalytic combustion

doi:10.1016/j.mcat.2022.112149

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	Engineering order mesoporous CeCoOx catalyst via in-situ confined encapsulation strategy for VOCs catalytic combustion
	Wen, Meng 2,3; Dong, Fang 1,3; Tang, Zhicheng 3,4; Zhang, Jiyi 2
刊名	Molecular Catalysis
	2022-02-01
卷号	519
关键词	Calcination Catalyst activity Catalytic oxidation Cerium oxide Combustion Mesoporous materials Toluene Anchorings Calcination temperature Catalytic combustion Cecoox In-situ confined encapsulation strategy Lattice oxygen Mesoporous Ordered mesoporous Ordered mesoporous structures ]+ catalyst
ISSN号	2468-8231
DOI	10.1016/j.mcat.2022.112149
英文摘要	In this paper, a novel vacuum in-situ confined encapsulation strategy was proposed, in which Co-MOFs were embedded and anchored into ordered mesoporous CeO2 structure to obtain a precursor of Co-MOF@CeO2 composites. Accordingly, the Co-MOF@CeO2 precursor was transformed into ordered mesoporous CeCoOx oxides for catalytic combustion of toluene by precisely controlling their calcination temperature without destroying the ordered mesoporous structure. It is confirmed that order mesoCeCoOx-300 calcined at 300 °C had superior activity and good thermal stability for toluene catalytic oxidation, which were chiefly due to the content of Co3+, the effective anchoring of Co-MOFs in ordered mesoporous CeO2, more lattice oxygen, and weak acid sites. More importantly, we discovered that the active Co species would migrate and aggregate with the increase of calcination temperature, and affected greatly the interaction between Ce and Co. Besides, the increase of calcination temperature also resulted in an obvious decrease of the specific surface area and Co3+ species (TOFs) of the catalysts, which affected the catalytic combustion activity of toluene. © 2022 Elsevier B.V.
语种	英语
出版者	Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157902]
专题	石油化工学院
作者单位	1.Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian; 116023, China; 2.School of Petroleum and Chemical, Lanzhou University of Technology, Lanzhou; 730050, China; 3.State Key Laboratory for Oxo Synthesis and Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; 730000, China; 4.Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Yantai; 264006, China
推荐引用方式 GB/T 7714	Wen, Meng,Dong, Fang,Tang, Zhicheng,et al. Engineering order mesoporous CeCoOx catalyst via in-situ confined encapsulation strategy for VOCs catalytic combustion[J]. Molecular Catalysis,2022,519.
APA	Wen, Meng,Dong, Fang,Tang, Zhicheng,&Zhang, Jiyi.(2022).Engineering order mesoporous CeCoOx catalyst via in-situ confined encapsulation strategy for VOCs catalytic combustion.Molecular Catalysis,519.
MLA	Wen, Meng,et al."Engineering order mesoporous CeCoOx catalyst via in-situ confined encapsulation strategy for VOCs catalytic combustion".Molecular Catalysis 519(2022).