CAS OpenIR
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 PublicationJOURNAL OF CATALYSIS
ISSN0021-9517
Volume374Pages:284-296
AbstractIn 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.
KeywordCu2O nanocrystal Exposed facet ZnO/Cu2O heterostructure Rochow reaction Catalytic activity
DOI10.1016/j.jcat.2019.02.029
Language英语
WOS KeywordINITIO MOLECULAR-DYNAMICS ; METAL-CATALYZED SYNTHESIS ; CUO MICROSPHERES ; ROCHOW REACTION ; COPPER-CATALYSTS ; METHYL-CHLORIDE ; PHASE ; PERFORMANCE ; MECHANISM ; METHYLCHLOROSILANES
Funding ProjectNational 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 AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China, China ; State Key Laboratory of Multiphase Complex Systems, China
WOS IDWOS:000483423600030
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30783
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Jing; Ji, Yongjun; Gong, Xue-Qing; Su, Fabing
Affiliation1.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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