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Urchin-like ZnO microspheres synthesized by thermal decomposition of hydrozincite as a copper catalyst promoter for the Rochow reaction
Alternative TitleRSC Adv.
Chen, Min1,2; Wang, Yingli2; Song, Lianying2; Gunawan, Poernomo3; Zhong, Ziyi3; She, Xilin1; Su, Fabing2
2012
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume2Issue:10Pages:4164-4168
AbstractUrchin-like ZnO microspheres were successfully prepared by thermal decomposition of hydrozincite synthesized via homogeneous precipitation of zinc nitrate and urea in the presence of a nonionic surfactant polyethylene glycol. The synthesis conditions, such as reaction temperature and time, precursor concentration, and the amount of surfactant added, as well as the catalytic properties of urchin-like ZnO microspheres as promoters for a commercial copper catalyst in dimethyldichlorosilane synthesis were investigated. In addition, the formation mechanism of urchin-like microspheres from hydrozincite to ZnO was proposed. The ZnO samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and N-2 adsorption. It was found that zinc nitrate concentration and the amount of surfactant are the key factors that lead to the formation of urchin-like ZnO microspheres. These ZnO samples had BET surface areas of 16-30 m(2) g(-1) and an average diameter of 3-8 mu m. Compared with commercial Zn microspheres and ZnO nanoparticles, urchin-like ZnO microspheres showed a better performance in dimethyldichlorosilane synthesis via the Rochow reaction due to their larger surface area, which created more interfacial contacts with the copper catalyst and active Cu3Si species. The work is helpful for developing novel catalyst promoters and understanding the role of the promoter in the Rochow reaction.; Urchin-like ZnO microspheres were successfully prepared by thermal decomposition of hydrozincite synthesized via homogeneous precipitation of zinc nitrate and urea in the presence of a nonionic surfactant polyethylene glycol. The synthesis conditions, such as reaction temperature and time, precursor concentration, and the amount of surfactant added, as well as the catalytic properties of urchin-like ZnO microspheres as promoters for a commercial copper catalyst in dimethyldichlorosilane synthesis were investigated. In addition, the formation mechanism of urchin-like microspheres from hydrozincite to ZnO was proposed. The ZnO samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and N-2 adsorption. It was found that zinc nitrate concentration and the amount of surfactant are the key factors that lead to the formation of urchin-like ZnO microspheres. These ZnO samples had BET surface areas of 16-30 m(2) g(-1) and an average diameter of 3-8 mu m. Compared with commercial Zn microspheres and ZnO nanoparticles, urchin-like ZnO microspheres showed a better performance in dimethyldichlorosilane synthesis via the Rochow reaction due to their larger surface area, which created more interfacial contacts with the copper catalyst and active Cu3Si species. The work is helpful for developing novel catalyst promoters and understanding the role of the promoter in the Rochow reaction.
KeywordHollow Zinc-oxide Dimethyldichlorosilane Synthesis Photocatalytic Activity Facile Synthesis Mesoporous Zno Nanowire Array Thin-films Methylchlorosilanes Nanostructures Performance
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c2ra01022d
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHOLLOW ZINC-OXIDE ; DIMETHYLDICHLOROSILANE SYNTHESIS ; PHOTOCATALYTIC ACTIVITY ; FACILE SYNTHESIS ; MESOPOROUS ZNO ; NANOWIRE ARRAY ; THIN-FILMS ; METHYLCHLOROSILANES ; NANOSTRUCTURES ; PERFORMANCE
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000304327300022
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6516
Collection研究所(批量导入)
Affiliation1.Qingdao Univ, Coll Chem & Environm Engn, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.ASTAR, Inst Chem Engn & Sci, Singapore 627833, Singapore
Recommended Citation
GB/T 7714
Chen, Min,Wang, Yingli,Song, Lianying,et al. Urchin-like ZnO microspheres synthesized by thermal decomposition of hydrozincite as a copper catalyst promoter for the Rochow reaction[J]. RSC ADVANCES,2012,2(10):4164-4168.
APA Chen, Min.,Wang, Yingli.,Song, Lianying.,Gunawan, Poernomo.,Zhong, Ziyi.,...&Su, Fabing.(2012).Urchin-like ZnO microspheres synthesized by thermal decomposition of hydrozincite as a copper catalyst promoter for the Rochow reaction.RSC ADVANCES,2(10),4164-4168.
MLA Chen, Min,et al."Urchin-like ZnO microspheres synthesized by thermal decomposition of hydrozincite as a copper catalyst promoter for the Rochow reaction".RSC ADVANCES 2.10(2012):4164-4168.
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