Urchin-like ZnO microspheres synthesized by thermal decomposition of hydrozincite as a copper catalyst promoter for the Rochow reaction
文献类型：期刊论文
| 作者 | Chen, Min1,2; Wang, Yingli2; Song, Lianying2; Gunawan, Poernomo3; Zhong, Ziyi3; She, Xilin1; Su, Fabing2 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2012 |
| 卷号 | 2期号:10页码:4164-4168 |
| 关键词 | hollow zinc-oxide dimethyldichlorosilane synthesis photocatalytic activity facile synthesis mesoporous zno nanowire array thin-films methylchlorosilanes nanostructures performance |
| ISSN号 | 2046-2069 |
| 其他题名 | RSC Adv. |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | HOLLOW ZINC-OXIDE ; DIMETHYLDICHLOROSILANE SYNTHESIS ; PHOTOCATALYTIC ACTIVITY ; FACILE SYNTHESIS ; MESOPOROUS ZNO ; NANOWIRE ARRAY ; THIN-FILMS ; METHYLCHLOROSILANES ; NANOSTRUCTURES ; PERFORMANCE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000304327300022 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6516]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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