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Controllably oxidized copper flakes as multicomponent copper-based catalysts for the Rochow reaction
Alternative TitleRSC Adv.
Liu, Shaomian1,2; Wang, Yingli2; Zhu, Yongxia2; Wang, Guangna2; Zhang, Zailei2; Che, Hongwei3; Jia, Lihua1; Su, Fabing2
2014
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume4Issue:15Pages:7826-7833
AbstractThe metallic Cu flakes prepared by milling metallic Cu powder were controllably oxidized in air at different temperatures to obtain the Cu-based catalysts containing multicomponents of Cu, Cu2O, and CuO. These catalysts are explored in the Rochow reaction using silicon powder and methyl chloride (MeCl) as reactants to produce dimethyldichlorosilane (M2), which is the most important organosilane monomer in the industry. The samples were characterized by X-ray diffraction, temperature-programmed reduction, thermogravimetric analysis, oxidimetry analysis, particle size analysis, transmission electron microscopy, and scanning electron microscopy. Compared to the metallic Cu powder and Cu flakes, the controllably oxidized Cu flakes containing Cu, Cu2O, and CuO species show much higher M2 selectivity and silicon conversion in the Rochow reaction. The enhanced catalytic performance may stem from the larger interfacial contact among the gas MeCl, solid Si particles, and solid Cu-based catalyst flakes, as well as the synergistic effect among the different Cu species. The work would be helpful to the development of novel Cu-based catalysts for organosilane synthesis.; The metallic Cu flakes prepared by milling metallic Cu powder were controllably oxidized in air at different temperatures to obtain the Cu-based catalysts containing multicomponents of Cu, Cu2O, and CuO. These catalysts are explored in the Rochow reaction using silicon powder and methyl chloride (MeCl) as reactants to produce dimethyldichlorosilane (M2), which is the most important organosilane monomer in the industry. The samples were characterized by X-ray diffraction, temperature-programmed reduction, thermogravimetric analysis, oxidimetry analysis, particle size analysis, transmission electron microscopy, and scanning electron microscopy. Compared to the metallic Cu powder and Cu flakes, the controllably oxidized Cu flakes containing Cu, Cu2O, and CuO species show much higher M2 selectivity and silicon conversion in the Rochow reaction. The enhanced catalytic performance may stem from the larger interfacial contact among the gas MeCl, solid Si particles, and solid Cu-based catalyst flakes, as well as the synergistic effect among the different Cu species. The work would be helpful to the development of novel Cu-based catalysts for organosilane synthesis.
KeywordDimethyldichlorosilane Synthesis Cuo Microspheres Solvothermal Synthesis Methylchlorosilanes Nanoflakes Oxidation Powder Methyl Microparticles Nanoparticles
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c3ra46970k
URL查看原文
Indexed BySCI
Language英语
WOS KeywordDIMETHYLDICHLOROSILANE SYNTHESIS ; CUO MICROSPHERES ; SOLVOTHERMAL SYNTHESIS ; METHYLCHLOROSILANES ; NANOFLAKES ; OXIDATION ; POWDER ; METHYL ; MICROPARTICLES ; NANOPARTICLES
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000330241000068
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8063
Collection研究所(批量导入)
Affiliation1.Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Heilongjiang Pr, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Hebei Univ Engn, Coll Equipment Mfg, Handan 056038, Hebei Province, Peoples R China
Recommended Citation
GB/T 7714
Liu, Shaomian,Wang, Yingli,Zhu, Yongxia,et al. Controllably oxidized copper flakes as multicomponent copper-based catalysts for the Rochow reaction[J]. RSC ADVANCES,2014,4(15):7826-7833.
APA Liu, Shaomian.,Wang, Yingli.,Zhu, Yongxia.,Wang, Guangna.,Zhang, Zailei.,...&Su, Fabing.(2014).Controllably oxidized copper flakes as multicomponent copper-based catalysts for the Rochow reaction.RSC ADVANCES,4(15),7826-7833.
MLA Liu, Shaomian,et al."Controllably oxidized copper flakes as multicomponent copper-based catalysts for the Rochow reaction".RSC ADVANCES 4.15(2014):7826-7833.
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