Engineering oxygen vacancies and localized amorphous regions m CuO-ZnO separately boost catalytic reactivity and selectivity
文献类型：期刊论文
| 作者 | Ji, Yongjun1; Chen, Xiaoli1; Liu, Shaomian2; Xing, Liwen3; Jiang, Xingyu4; Zhang, Bin5; Li, Huifang2; Chen, Wenxing6; Zhong, Ziyi7,8; Wang, Ligen9 |
| 刊名 | NANO RESEARCH
 |
| 出版日期 | 2022-10-07 |
| 页码 | 7 |
| 关键词 | oxygen vacancy localized amorphous region CuO-ZnO catalyst reactivity selectivity |
| ISSN号 | 1998-0124 |
| DOI | 10.1007/s12274-022-4940-3 |
| 英文摘要 | Generating different types of defects in heterogeneous catalysts for synergetic promotion of the reactivity and selectivity in catalytic reactions is highly challenging due to the lack of effective theoretical guidance. Herein, we demonstrate a facile strategy to introduce two types of defects into the CuO-ZnO model catalyst, namely oxygen vacancies (OVs) induced by H-2 partial reduction and localized amorphous regions (LARs) generated via the ball milling process. Using industrially important Rochow-Muller reaction as a representative, we found OVs predominantly improved the target product selectivity of dimethyldichlorosilane, while LARs significantly increased the conversion of reactant Si. The CuO-ZnO catalyst with optimized OVs and LARs contents achieved the best catalytic property. Theoretical calculation further revealed that LARs promote the generation of the Cu3Si active phase, and OVs impact the electronic structure of the Cu3Si active phase. This work provides a new understanding of the roles of different catalyst defects and a feasible way of engineering the catalyst structure for better catalytic performances. |
| WOS关键词 | DEFECT ; OXIDATION ; METHYLCHLOROSILANES ; REDUCTION ; MECHANISM ; KINETICS |
| 资助项目 | National Natural Science Foundation of China[21878301] ; National Natural Science Foundation of China[21978299] ; Open Research Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2021-D-08] ; GRINM Group ; Research Foundation for Advanced Talents of Beijing Technology and Business University[19008020159] ; Beijing Technology and Business University[19008022056] ; Research Foundation for Youth Scholars of Beijing Technology and Business University[QNJJ2022-22] ; Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion (MATEC) ; Guangdong Technion-Israel Institute of Technology ; Guangdong Key Discipline Fund (2022) |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000864984500009 |
| 出版者 | TSINGHUA UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China ; Open Research Fund of State Key Laboratory of Multiphase Complex Systems ; GRINM Group ; Research Foundation for Advanced Talents of Beijing Technology and Business University ; Beijing Technology and Business University ; Research Foundation for Youth Scholars of Beijing Technology and Business University ; Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion (MATEC) ; Guangdong Technion-Israel Institute of Technology ; Guangdong Key Discipline Fund (2022) |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/55002]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Ji, Yongjun; Xing, Liwen; Wang, Ligen; Su, Fabing |
| 作者单位 | 1.Beijing Technol & Business Univ, Sch Light Ind, Beijing 100048, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Beijing Technol & Business Univ, Coll Chem & Mat Engn, Beijing 100048, Peoples R China 4.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China 5.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China 6.Beijing Inst Technol, Sch Mat Sci & Engn, Energy & Catalysis Ctr, Beijing 100081, Peoples R China 7.Guangdong Technion Israel Inst Technol GTIIT, Dept Chem Engn, Shantou 515063, Peoples R China 8.GTIIT, Guangdong Prov Key Lab Mat & Technol Energy Conve, Guangzhou 515063, Guangdong, Peoples R China 9.Gripm Adv Mat Co Ltd, Beijing 101407, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Yongjun,Chen, Xiaoli,Liu, Shaomian,et al. Engineering oxygen vacancies and localized amorphous regions m CuO-ZnO separately boost catalytic reactivity and selectivity[J]. NANO RESEARCH,2022:7. |
| APA | Ji, Yongjun.,Chen, Xiaoli.,Liu, Shaomian.,Xing, Liwen.,Jiang, Xingyu.,...&Su, Fabing.(2022).Engineering oxygen vacancies and localized amorphous regions m CuO-ZnO separately boost catalytic reactivity and selectivity.NANO RESEARCH,7. |
| MLA | Ji, Yongjun,et al."Engineering oxygen vacancies and localized amorphous regions m CuO-ZnO separately boost catalytic reactivity and selectivity".NANO RESEARCH (2022):7. |
入库方式： OAI收割
来源：过程工程研究所
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