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题名:
Morphology-dependent catalytic properties of nanocupric oxides in the Rochow reaction
作者: Zhang, Yu1,2; Ji, Yongjun1; Li, Jing1,2; Liu, Hezhi1; Hu, Xiao3; Zhong, Ziyi3; Su, Fabing1
刊名: NANO RESEARCH
出版日期: 2018-02-01
卷号: 11, 期号:2, 页码:804-819
关键词: copper oxide ; shape-controlled synthesis ; the Rochow reaction ; the Cu3Si alloy phase ; structure-property relationship
收录类别: SCI
WOS记录号: WOS:000419959500020
DOI: 10.1007/s12274-017-1689-x
文章类型: Article
英文摘要: Four kinds of CuO catalysts with well-controlled leaf-like (L-CuO), flower-like (F-CuO), sea-urchin-like (U-CuO), and oatmeal-like (O-CuO) morphologies were synthesized by a facile precipitation method assisted by various chelating ligands. High-resolution transmission electron microscopy and fast Fourier transform infrared spectroscopy indicated that the dominant crystal facets of L-CuO, F-CuO, U-CuO, and O-CuO were {001}, {(1) over bar 10}, {001}, and {110}, as well as {001} and {(1) over bar 10}, respectively. When tested for the Rochow reaction, it was found that their catalytic performances were dependent on their structures. Among the four CuO catalysts, L-CuO exhibited the best catalytic property, along with the strongest adsorption ability for oxygen and highest reducibility, which are mainly because of its largely exposed {001} facet and large specific surface area. In addition, the amount of the Cu3Si alloy phase, which is the most important reaction intermediate that generated in the reacted region of the Si surface, was measured for the different catalysts. Based on the findings, a detailed reaction mechanism was proposed. This work demonstrates that shape-controlled synthesis of oxide catalysts could be an effective strategy to design and develop efficient catalysts.
WOS标题词: Science & Technology ; Physical Sciences ; Technology
类目[WOS]: Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]: Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]: CONTROLLABLE SYNTHESIS ; CUO NANOSTRUCTURES ; CO OXIDATION ; METHYLCHLOROSILANES ; NANOCRYSTALS ; MECHANISM ; PERFORMANCE ; KINETICS ; FACILE ; OXYGEN
项目资助者: National Natural Science Foundation of China(21506224)
语种: 英语
ISSN号: 1998-0124
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ipe.ac.cn/handle/122111/23587
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, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nanyang Technol Univ, NEWRI, 1 Cleantech Loop,CleanTech One, Singapore 637141, Singapore

Recommended Citation:
Zhang, Yu,Ji, Yongjun,Li, Jing,et al. Morphology-dependent catalytic properties of nanocupric oxides in the Rochow reaction[J]. NANO RESEARCH,2018,11(2):804-819.
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