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Porous (CuO)(x)ZnO hollow spheres as efficient Rochow reaction catalysts
Zhang, Zailei1; Ji, Yongjun1; Li, Jing1; Zhu, Yongxia1; Zhong, Ziyi2; Su, Fabing1
2016
发表期刊CRYSTENGCOMM
ISSN1466-8033
卷号18期号:16页码:2808-2819
摘要Nowadays, how to achieve both high dimethyldichlorosilane selectivity and silicon conversion in the Rochow reaction still remains a major challenge in the organosilane industry, in which silicon and chloromethane are converted into methylchlorosilanes on Cu-based catalysts mixed with ZnO promoter. Therefore, this calls for the development of outstanding catalysts with both high activity and selectivity for the Rochow reaction and also for a deep fundamental understanding of the catalytic mechanism. In this work, we designed and synthesized a series of copper oxide-zinc oxide catalysts ((CuO)(x)ZnO (0 <= x <= 49)) with a distinct porous hollow spherical structure for the reaction. These porous hollow spherical catalysts composed of CuO and ZnO nanoparticles were prepared through co-adsorption of Cu2+ and Zn2+ in the interior and outer surfaces of the hydrothermally synthesized carbonaceous spheres, followed by a new hydrothermal treatment and calcination in air. The catalytic properties of the (CuO)(x)ZnO hollow spheres for dimethyldichlorosilane synthesis via the Rochow reaction was investigated, and a deeper understanding of the catalytic mechanism was obtained. As compared to pure CuO hollow spheres, the prepared (CuO)(19)ZnO hollow spheres exhibited much higher dimethyldichlorosilane selectivity and silicon conversion, which are clearly related to the synergistic electronic effect between Cu and ZnO and to the distinct catalyst structures which allow intimate contact of the reactant molecules with the active component and the efficient transport of the molecules. This work opens a new way for the fabrication of efficient and integrated Cu-based catalysts for the Rochow reaction.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ce00173d
收录类别SCI
语种英语
关键词[WOS]COPPER-BASED CATALYSTS ; LITHIUM-ION BATTERIES ; DIMETHYLDICHLOROSILANE SYNTHESIS ; CUO MICROSPHERES ; SOLVOTHERMAL SYNTHESIS ; METAL NANOPARTICLES ; REDUCTION REACTION ; NANOWIRE ARRAYS ; ZINC-OXIDE ; ZNO
WOS研究方向Chemistry ; Crystallography
WOS类目Chemistry, Multidisciplinary ; Crystallography
项目资助者National Natural Science Foundation of China(51402299 ; Chinese Academy of Sciences ; ICES ; 51272252)
WOS记录号WOS:000374888800003
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21045
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore
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Zhang, Zailei,Ji, Yongjun,Li, Jing,et al. Porous (CuO)(x)ZnO hollow spheres as efficient Rochow reaction catalysts[J]. CRYSTENGCOMM,2016,18(16):2808-2819.
APA Zhang, Zailei,Ji, Yongjun,Li, Jing,Zhu, Yongxia,Zhong, Ziyi,&Su, Fabing.(2016).Porous (CuO)(x)ZnO hollow spheres as efficient Rochow reaction catalysts.CRYSTENGCOMM,18(16),2808-2819.
MLA Zhang, Zailei,et al."Porous (CuO)(x)ZnO hollow spheres as efficient Rochow reaction catalysts".CRYSTENGCOMM 18.16(2016):2808-2819.
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