In situ self-assembly encapsulation of CoFeOx nanoparticles in ordered mesoporous TiZrOx channels for enhanced catalytic combustion of o-dichlorobenzene

doi:10.1016/j.fuel.2021.122496

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	In situ self-assembly encapsulation of CoFeOx nanoparticles in ordered mesoporous TiZrOx channels for enhanced catalytic combustion of o-dichlorobenzene
	Wu, Shilin 1,2; Zhao, Haijun 2; Ling, Weitong 2; Tang, Zhicheng 2; Zhang, Jiyi 1
刊名	Fuel
	2022-03-01
卷号	311
关键词	Catalysis Catalyst activity Catalyst poisoning Combustion Mesoporous materials Metal nanoparticles Metals Oxygen Titanium compounds Zirconium compounds Anchorings Catalytic combustion Cofe-ZIF67 In-situ self-assembly Lattice oxygen O-dichlorobenzene Ordered mesoporous Ordered mesoporous TiZrOx X-channel ]+ catalyst
ISSN号	0016-2361
DOI	10.1016/j.fuel.2021.122496
英文摘要	Anchoring MOFs in ordered mesoporous channels is a novel scheme to improve the stability and dispersion of metal oxide nanoparticles. In this paper, highly dispersed CoFeOx nanoparticles in ordered mesoporous TiZrOx channels were prepared by in situ self-assembly confinement method and applied to the catalytic combustion of o-dichlorobenzene (o-DCB). By analyzing the BET, SEM, TEM, XRD, and FTIR results, we found that the CoFeOx nanoparticles of CoFeOx@TiZrOx catalyst prepared by vacuum in situ self-assembly method were smaller and distributed in ordered mesoporous channels due to the confinement effect of TiZrOx compared with CoFeOx@TiZrOx-c catalyst. In addition, doping Fe in Co3O4 could improve the redox property, O mobility and acid site of the CoFeOx@TiZrOx catalyst, to improve the activity and stability of the catalyst. In short, the CoFeOx@TiZrOx catalyst not only had excellent catalytic performance for o-DCB destruction (T90 = 381 °C), but also had outstanding stability to resistant Cl poisoning deactivation, which mainly attributed to abundant Co3+, Fe2+, lattice oxygen species, and strong acid sites. The MvK reaction mechanism of the CoFeOx@TiZrOx catalyst based on surface lattice oxygen was proposed by characterization analysis. © 2021 Elsevier Ltd
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000763206500002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157997]
专题	石油化工学院
作者单位	1.School of Petroleum and Chemical, Lanzhou University of Technology, Lanzhou; 730050, China; 2.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
推荐引用方式 GB/T 7714	Wu, Shilin,Zhao, Haijun,Ling, Weitong,et al. In situ self-assembly encapsulation of CoFeOx nanoparticles in ordered mesoporous TiZrOx channels for enhanced catalytic combustion of o-dichlorobenzene[J]. Fuel,2022,311.
APA	Wu, Shilin,Zhao, Haijun,Ling, Weitong,Tang, Zhicheng,&Zhang, Jiyi.(2022).In situ self-assembly encapsulation of CoFeOx nanoparticles in ordered mesoporous TiZrOx channels for enhanced catalytic combustion of o-dichlorobenzene.Fuel,311.
MLA	Wu, Shilin,et al."In situ self-assembly encapsulation of CoFeOx nanoparticles in ordered mesoporous TiZrOx channels for enhanced catalytic combustion of o-dichlorobenzene".Fuel 311(2022).