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Novel leaflike Cu-O-Sn nanosheets as highly efficient catalysts for the Rochow reaction
Zou, Shanying1,2; Ji, Yongjun1; Li, Jing1; Zhang, Yu1; Jin, Zheying1; Jia, Lihua2; Guo, Xiangfeng2; Zhong, Ziyi3,4; Su, Fabing1
2016-05-01
发表期刊JOURNAL OF CATALYSIS
ISSN0021-9517
卷号337期号:MAY页码:1-13
摘要In this work, we report the preparation of novel leaflike Cu-O-Sn nanosheet catalysts for the Rochow reaction. The catalysts were synthesized via a facile hydrothermal approach using CuSO4 center dot 3H(2)O and SnCl4 center dot 5H(2)O as the precursors, but without the use of any template. When used for the Rochow reaction to synthesize dimethyldichlorosilane (M2), the as-prepared 0.1 wt.% Cu-O-Sn nanosheet exhibited a much higher M2 selectivity (93.3%), Si conversion (68.4%), and stability than the catalysts of CuO or SnO2 alone, the Cu-O-Sn catalysts with different compositions, and the commercial catalysts. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, atomic force microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and temperature-programmed reduction analyses. Surface segregation of Sn was observed, and the quantities of chemisorbed oxygen species and cation vacancies were well correlated with the activity of the catalysts. It is concluded that small crystal size, high chemisorbed oxygen species concentration, more cation vacancies, and strong interaction between Cu and Sn are responsible for the excellent catalytic performance of 0.1 wt.% Cu-O-Sn catalyst. (C) 2016 Elsevier Inc. All rights reserved.
关键词Composite Oxide Cu-based Catalysts Hydrothermal Method Nanosheet Rochow Reaction
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jcat.2016.01.009
收录类别SCI
语种英语
关键词[WOS]DIMETHYLDICHLOROSILANE SYNTHESIS ; METHYL-CHLORIDE ; NO REDUCTION ; MIXED OXIDES ; METHYLCHLOROSILANES ; COPPER ; PERFORMANCE ; MECHANISM ; SILICON ; CO
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Physical ; Engineering, Chemical
项目资助者National Natural Science Foundation of China(21506224 ; 51272252)
WOS记录号WOS:000374920400001
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21050
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.Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Heilongjiang Pr, Peoples R China
3.ASTAR, Inst Chem & Engn Sci, 1 Pesek Rd, Singapore 627833, Singapore
4.Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore
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Zou, Shanying,Ji, Yongjun,Li, Jing,et al. Novel leaflike Cu-O-Sn nanosheets as highly efficient catalysts for the Rochow reaction[J]. JOURNAL OF CATALYSIS,2016,337(MAY):1-13.
APA Zou, Shanying.,Ji, Yongjun.,Li, Jing.,Zhang, Yu.,Jin, Zheying.,...&Su, Fabing.(2016).Novel leaflike Cu-O-Sn nanosheets as highly efficient catalysts for the Rochow reaction.JOURNAL OF CATALYSIS,337(MAY),1-13.
MLA Zou, Shanying,et al."Novel leaflike Cu-O-Sn nanosheets as highly efficient catalysts for the Rochow reaction".JOURNAL OF CATALYSIS 337.MAY(2016):1-13.
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