Engineering the core-shell structure CoMnOx@OTS cubic catalyst with excellent water resistance for low-temperature catalytic combustion of VOCs | |
Wang, Jie1,2,3; Dong, Fang1,2; Yang, Dan1,2,3; Han, Weiliang1,2; Han, Weigao1,2; Tang, Zhicheng1,2; Niu, Lei3![]() | |
2024-06-21 | |
在线发表时间 | 2024-06 |
发表期刊 | ENVIRONMENTAL SCIENCE-NANO
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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). |
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