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题名:
Template-free synthesis of Cu@Cu2O core-shell microspheres and their application as copper-based catalysts for dimethyldichlorosilane synthesis
作者: Zhang, Zailei1; Che, Hongwei1; Wang, Yingli1; Gao, Jiajian1; Ping, Yuan1; Zhong, Ziyi2; Su, Fabing1
刊名: CHEMICAL ENGINEERING JOURNAL
出版日期: 2012-11-15
卷号: 211, 期号:0, 页码:421-431
关键词: Copper ; Cuprous oxide ; Core-shell microspheres ; Dimethyldichlorosilane synthesis
收录类别: SCI
WOS记录号: WOS:000313762000051
DOI: 10.1016/j.cej.2012.09.095
通讯作者: Wang, YL
文章类型: Article
英文摘要: We report the synthesis of Cu@Cu2O core-shell microspheres via a facile template-free solvothermal method. The resulting products were characterized by X-ray diffraction, scanning electron microscopy with energy-dispersive spectroscopy, transmission electron microscopy, temperature-programmed reduction, and thermogravimetric analysis. It is found that, Cu2O microspheres were firstly formed through the reduction of copper acetate by glutamic acid, and then, the reduction started inside the microspheres due to the higher surface energies of inner Cu2O particles, resulting in the formation of Cu@Cu2O core-shell structure. The content of Cu core in the composite microspheres increased with the reaction time and temperature. The as-prepared Cu@Cu2O core-shell microspheres exhibited a better catalytic performance for dimethyldichlorosilane synthesis than pure Cu2O and Cu, and even superior to the physically mixed Cu and Cu2O microspheres possibly because of the synergistic catalytic effect. These Cu@Cu2O core-shell microspheres will have potential application in organosilicon industry as copper-based catalysts. (C) 2012 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]: Engineering
关键词[WOS]: FACILE SOLVOTHERMAL SYNTHESIS ; LITHIUM-STORAGE PROPERTIES ; HOLLOW MICROSPHERES ; REDUCTION REACTION ; CU2O MICROSPHERES ; CARBON NANOTUBES ; ROCHOW REACTION ; METAL ; CUO ; NANOPARTICLES
语种: 英语
ISSN号: 1385-8947
Citation statistics:
内容类型: 期刊论文
版本: 出版稿
URI标识: http://ir.ipe.ac.cn/handle/122111/2701
Appears in Collections:多相复杂系统国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.ASTAR, Inst Chem Engn & Sci, Singapore 627833, Singapore

Recommended Citation:
Zhang, Zailei,Che, Hongwei,Wang, Yingli,et al. Template-free synthesis of Cu@Cu2O core-shell microspheres and their application as copper-based catalysts for dimethyldichlorosilane synthesis[J]. CHEMICAL ENGINEERING JOURNAL,2012,211(0):421-431.
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