Heterojunctions generated in SnO2-CuO nanocatalysts for improved catalytic property in the Rochow reaction
文献类型：期刊论文
| 作者 | Zou, Shanying1,2; Ji, Yongjun2; Wang, Guangna2; Zhu, Yongxia2; Liu, Hezhi2; Jia, Lihua1; Guo, Xiangfeng1; Zhong, Ziyi3; Su, Fabing2 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:78页码:63355-63362 |
| ISSN号 | 2046-2069 |
| 英文摘要 | We 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | TEMPERATURE CO OXIDATION ; DIMETHYLDICHLOROSILANE SYNTHESIS ; CUO MICROSPHERES ; CUO-CEO2 CATALYSTS ; PERFORMANCE ; PROMOTERS ; BED ; METHYLCHLOROSILANES ; REDUCTION ; MECHANISM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358734800026 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19417]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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