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| ZnO supported on Cu2O{100} enhances charge transfer in dimethyldichlorosilane synthesis | |
| Li, Jing1; Ni, Zibin2; Ji, Yongjun1,5; Zhu, Yongxia1; Liu, Hezhi1; Zhang, Yu1; Gong, Xue-Qing2; Zhong, Ziyi3; Su, Fabing1,4,5 | |
| 2019-06-01 | |
| Source Publication | JOURNAL OF CATALYSIS
 |
| ISSN | 0021-9517 |
| Volume | 374Pages:284-296 |
| Abstract | In this work, three types of ZnO/Cu2O heterostructures were synthesized by depositing ZnO nanoparticles on the supports of Cu2O cubes, Cu2O octahedrons and Cu2O dodecahedrons with different exposed facets. These catalysts were used for the Rochow reaction, which is an important industrial process for the synthesis of organosilicon polymers. It was demonstrated that Cu2O cubes-supported ZnO catalyst is the most active toward dimethyldichlorosilane formation, while Cu2O dodecahedrons-supported ZnO catalyst is the least active. Both experimental results and density functional theory calculations show that, in the three cases, the charge transfer efficiency between the ZnO nanoparticle and the Cu2O{1 0 0} plane is the highest, which enhances the dissociative adsorption of methylchloride at Cu2O{1 0 0}, the subsequent reduction of Cu+ into Cu-0 and the final formation of the Cu3Si active phases. This work reveals essential information about how the Rochow reaction proceeds on the ZnO/Cu2O catalyst and demonstrates a practical strategy to rationally design highly efficient catalytic system in heterogeneous catalysis. (C) 2019 Elsevier Inc. All rights reserved. |
| Keyword | Cu2O nanocrystal Exposed facet ZnO/Cu2O heterostructure Rochow reaction Catalytic activity |
| DOI | 10.1016/j.jcat.2019.02.029 |
| Language | 英语 |
| WOS Keyword | INITIO MOLECULAR-DYNAMICS ; METAL-CATALYZED SYNTHESIS ; CUO MICROSPHERES ; ROCHOW REACTION ; COPPER-CATALYSTS ; METHYL-CHLORIDE ; PHASE ; PERFORMANCE ; MECHANISM ; METHYLCHLOROSILANES |
| Funding Project | National Natural Science Foundation of China, China[21878301] ; National Natural Science Foundation of China, China[21573067] ; National Natural Science Foundation of China, China[21825301] ; State Key Laboratory of Multiphase Complex Systems, China[MPCS-2017-A-01] |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Physical ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China, China ; State Key Laboratory of Multiphase Complex Systems, China |
| WOS ID | WOS:000483423600030 |
| Publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/30783 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Li, Jing; Ji, Yongjun; Gong, Xue-Qing; Su, Fabing |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.East China Univ Sci & Technol, Sch Chem & Mol Engn, Ctr Computat Chem, Key Lab Adv Mat,Res Inst Ind Catalysis, Shanghai 200237, Peoples R China 3.GTIIT, Coll Engn, 241 Daxue Rd, Shantou 515063, Peoples R China 4.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China 5.Langfang Econ & Tech Dev Zone, Zhongke Langfang Inst Proc Engn, Fenghua Rd 1, Langfang 065001, Hebei, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Jing,Ni, Zibin,Ji, Yongjun,et al. ZnO supported on Cu2O{100} enhances charge transfer in dimethyldichlorosilane synthesis[J]. JOURNAL OF CATALYSIS,2019,374:284-296. |
| APA | Li, Jing.,Ni, Zibin.,Ji, Yongjun.,Zhu, Yongxia.,Liu, Hezhi.,...&Su, Fabing.(2019).ZnO supported on Cu2O{100} enhances charge transfer in dimethyldichlorosilane synthesis.JOURNAL OF CATALYSIS,374,284-296. |
| MLA | Li, Jing,et al."ZnO supported on Cu2O{100} enhances charge transfer in dimethyldichlorosilane synthesis".JOURNAL OF CATALYSIS 374(2019):284-296. |
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