Engineering the core-shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs

doi:10.1039/d4en00292j

IR > 新能源学院

	Engineering the core-shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs
	Wang, Jie 1,2,3; Dong, Fang 1,2; Yang, Dan 1,2,3; Han, Weiliang 1,2; Han, Weigao 1,2; Tang, Zhicheng 1,2; Niu, Lei3
	2024-06-21
在线发表时间	2024-06
发表期刊	ENVIRONMENTAL SCIENCE-NANO
ISSN	2051-8153
摘要	The design of core-shell structure catalysts with excellent activity, stability and water resistance is one of the effective strategies to realize their application in catalytic combustion of VOCs. Since octadecyltrichlorosilane (OTS) is an excellent hydrophobic coating, it was used to prepare superhydrophobic surfaces by forming hydrophobic monolayers on the surface of CoMnOx nanostructured templates. The CoMnOx@OTS core-shell structures were successfully constructed by overcoating OTS on the surface of CoMnOx-MOF nanocubes and evaluated for the catalytic combustion of toluene. The thickness of the CoMnOx@OTS cubic crystal was adjusted by controlling the content of OTS (2 wt%, 4 wt% and 10 wt%). Due to the synergistic effect between CoMnOx and OTS, CoMnOx@OTS-1 exhibited superior catalytic activity, stability and water resistance. The catalytic activity of CoMnOx@OTS-1 was consistently maintained at about 90% in the presence of 5 vol% H2O. The content of the OTS hydrophobic layer at 2 wt% reached the optimum water resistance. This is mainly attributed to the role and contribution of the hydrophobic functional group -OH from the OTS surface, which can greatly prevent the adsorption of water molecules on the active site. This work reveals new ideas for the preparation of core-shell structured cubic crystals using hydrophobic layer-coated bimetallic oxides, as well as a deeper understanding of the catalytic oxidation of toluene.
DOI	10.1039/d4en00292j
收录类别	SCIE
语种	英语
资助项目	National Natural Science Foundation of China [52070182]; Joint Fund of the Yulin University; Dalian National Laboratory for Clean Energy (YLU-DNL Fund) [202206]; Province Natural Science Foundation of GanSu [23JRRA638, 23JRRA622]; Talents of Innovation and Entrepreneurship Project of Lanzhou, China [2022-RC-26]; Lanzhou Science and Technology Plan Project [2023-3-35]; West Light Foundation of the Chinese Academy of Sciences; Western Light - Key Laboratory Project of Western Cross disciplinary Team, CAS [xbzg-zdsys-202318]
WOS研究方向	Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
WOS类目	Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology
WOS记录号	WOS:001262887600001
出版者	ROYAL SOC CHEMISTRY
原始文献类型	Article;Early Access
EISSN	2051-8161
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/170854
专题	新能源学院
通讯作者	Tang, Zhicheng; Niu, Lei
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China; 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou 730000, Peoples R China; 3.Lanzhou Univ Technol, Sch Petr & Chem, Lanzhou 730050, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Wang, Jie,Dong, Fang,Yang, Dan,et al. Engineering the core-shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs[J]. ENVIRONMENTAL SCIENCE-NANO,2024.
APA	Wang, Jie.,Dong, Fang.,Yang, Dan.,Han, Weiliang.,Han, Weigao.,...&Niu, Lei.(2024).Engineering the core-shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs.ENVIRONMENTAL SCIENCE-NANO.
MLA	Wang, Jie,et al."Engineering the core-shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs".ENVIRONMENTAL SCIENCE-NANO (2024).