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Heterojunctions generated in SnO2-CuO nanocatalysts for improved catalytic property in the Rochow reaction
Zou, Shanying1,2; Ji, Yongjun2; Wang, Guangna2; Zhu, Yongxia2; Liu, Hezhi2; Jia, Lihua1; Guo, Xiangfeng1; Zhong, Ziyi3; Su, Fabing2
2015
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume5Issue:78Pages:63355-63362
AbstractWe report the improved catalytic performance of SnO2-CuO hybrid nanocatalysts synthesized by rationally designing and controlling the local heterojunction structure. The SnO2 nanoparticle (NP) decorated CuO nanorods (NRs) (SnO2-CuO) with a mace-like structure and with various CuO : SnO2 ratios were prepared via depositing pre-synthesized SnO2 NPs on CuO NRs in the presence of polyvinylpyrrolidone molecules. The CuO NRs were obtained by a facile hydrothermal reaction using Cu(NO3)(2)center dot 3H(2)O as the precursor. The samples were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, and temperature-programmed reduction analyses. The results indicated that in the SnO2-CuO hybrid nanostructures, the heterojunctions were well generated as the SnO2 NPs were well dispersed on the CuO NRs. Their catalytic performances were then explored via the Rochow reaction, in which solid silicon (Si) reacts with gaseous methyl chloride (MeCl) to produce dimethyldichlorosilane (M2). Compared to separate CuO and SnO2 as well as their physical mixture, the SnO2-CuO hybrids exhibit significantly enhanced M2 selectivity and Si conversion because of the enhanced synergistic interaction between SnO2 and CuO due to the generated heterojunctions. This work demonstrates that the performance of heterogeneous catalysts can be improved by carefully designing and controlling their structures even when their composition remains unchanged.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra10996e
Indexed BySCI
Language英语
WOS KeywordTEMPERATURE CO OXIDATION ; DIMETHYLDICHLOROSILANE SYNTHESIS ; CUO MICROSPHERES ; CUO-CEO2 CATALYSTS ; PERFORMANCE ; PROMOTERS ; BED ; METHYLCHLOROSILANES ; REDUCTION ; MECHANISM
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000358734800026
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19417
Collection多相复杂系统国家重点实验室
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.Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
Recommended Citation
GB/T 7714
Zou, Shanying,Ji, Yongjun,Wang, Guangna,et al. Heterojunctions generated in SnO2-CuO nanocatalysts for improved catalytic property in the Rochow reaction[J]. RSC ADVANCES,2015,5(78):63355-63362.
APA Zou, Shanying.,Ji, Yongjun.,Wang, Guangna.,Zhu, Yongxia.,Liu, Hezhi.,...&Su, Fabing.(2015).Heterojunctions generated in SnO2-CuO nanocatalysts for improved catalytic property in the Rochow reaction.RSC ADVANCES,5(78),63355-63362.
MLA Zou, Shanying,et al."Heterojunctions generated in SnO2-CuO nanocatalysts for improved catalytic property in the Rochow reaction".RSC ADVANCES 5.78(2015):63355-63362.
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