Structured cobalt-manganese oxides on SiC nano-whisker modified SiC foams for catalytic combustion of toluene

doi:10.1016/j.cherd.2021.11.034

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	Structured cobalt-manganese oxides on SiC nano-whisker modified SiC foams for catalytic combustion of toluene
	Guan, Yanan 1,2; Zhou, Yangtao 2; Wang, Shaogang 2; Zou, Run 2; Zhang, Jinsong 2; Fan, Xiaolei 3; Jiao, Yilai 2
刊名	CHEMICAL ENGINEERING RESEARCH & DESIGN
	2022
卷号	177 页码:659-669
关键词	Structured catalyst Porous SiC foam SiC nano-whiskers Cobalt-manganese oxides Catalytic combustion
ISSN号	0263-8762
DOI	10.1016/j.cherd.2021.11.034
通讯作者	Fan, Xiaolei(Xiaolei.fan@manchester.ac.uk) ; Jiao, Yilai(yljiao@imr.ac.cn)
英文摘要	This work presents a two-step method for preparing structured Cobalt-Manganese Oxides nano-sheet (CMO) on SiC nano-whisker (SNW) modified SiC foam support (i.e. CMO@SNW@SiC) and its application to catalytic combustion of toluene. Firstly, SiC nano-whiskers were synthesized on the surface of SiC foam via carbothermal reduction to increase the specific surface area of the resulting structured support (SNW@SiC). Then, CMO were grown on SNW@SiC by hydrothermal synthesis. SNW@SiC provide more surface area, and the nano-sized SiO2/SiCxOy layer on the surface of the SNW promotes the redox reaction of the reactants on the surface, thereby ensuring the directional growth of CMO on SNW@SiC. Compared to the bare SiC foam, CMO loading was increased 67.5% on SNW@SiC. Analysis methods such as H-2-TPR, O-2-TPD and XPS prove that the redox ability of the CMO on SNW is similar to that of the powder CMO. Toluene catalytic combustion was used as a probe reaction to evaluate catalytic activity. The results show that the CMO@SNW@SiC catalyst could lower the light-off temperature compared to the CMO supported on SiC foam catalyst, which was equivalent to the bulk catalyst (CMO-24h). At the same time, in comparison with the bulk CMO catalyst, the CMO@SNW@SiC catalyst possessed a higher geometric exter-nal surface area, which promoted complete conversion of toluene at lower temperatures. In addition, the stability test shows that the CMO@SNW@SiC catalyst also had very good thermal stability and hydrothermal stability as well. The work provided not only the highly performed catalytic oxidation catalyst, but also presented a generic strategy for improving the design of structured catalysts.& nbsp;(c) 2021 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[22078348] ; Key Project on Intergovernmental International Science, Technology and Innovation (STI) Cooperation/STI Cooperation with Hong Kong, Macaoand Taiwan of China's National Key RD Programme[2019YFE0123200] ; European Union[872102]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000784294300005
资助机构	National Natural Science Foundation of China ; Key Project on Intergovernmental International Science, Technology and Innovation (STI) Cooperation/STI Cooperation with Hong Kong, Macaoand Taiwan of China's National Key RD Programme ; European Union
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172701]
专题	金属研究所_中国科学院金属研究所
通讯作者	Fan, Xiaolei; Jiao, Yilai
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Manchester, Sch Engn, Dept Chem Engn & Analyt Sci, Manchester M13 9PL, England
推荐引用方式 GB/T 7714	Guan, Yanan,Zhou, Yangtao,Wang, Shaogang,et al. Structured cobalt-manganese oxides on SiC nano-whisker modified SiC foams for catalytic combustion of toluene[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2022,177:659-669.
APA	Guan, Yanan.,Zhou, Yangtao.,Wang, Shaogang.,Zou, Run.,Zhang, Jinsong.,...&Jiao, Yilai.(2022).Structured cobalt-manganese oxides on SiC nano-whisker modified SiC foams for catalytic combustion of toluene.CHEMICAL ENGINEERING RESEARCH & DESIGN,177,659-669.
MLA	Guan, Yanan,et al."Structured cobalt-manganese oxides on SiC nano-whisker modified SiC foams for catalytic combustion of toluene".CHEMICAL ENGINEERING RESEARCH & DESIGN 177(2022):659-669.