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One-pot hydrothermal growth of raspberry-like CeO2 on CuO microsphere as copper-based catalyst for Rochow reaction
Jin, Zheying1,2; Li, Jing2; Shi, Laishun1; Ji, Yongjun2; Zhong, Ziyi3; Su, Fabing2
2015-12-30
发表期刊APPLIED SURFACE SCIENCE
ISSN0169-4332
卷号359期号:DEC页码:120-129
摘要In this work, we prepared a novel structure comprising of raspberry-like CeO2 deposited on CuO microspheres (Ce-CuO) for Rochow reaction. The synthesis was carried out via a facile one-pot hydrothermal reaction without using any template, in which, the basic copper carbonate microspheres were first formed via self-assembly of basic copper carbonate nanorods, followed with deposition of cerium hydroxide. After calcination, they were transformed into Ce-CuO but still maintained the hierarchical structure, and meanwhile, mesoporous structure was formed (for simplicity, we will only state them as metal oxide in the following context). The samples were characterized by X-ray diffraction (XRD), temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), and scanning electron microscopy (SEM) techniques. When used as a Cu-based catalyst, Ce-CuO exhibited superior catalytic property to the single CuO, CeO2 and their physically mixture in the Rochow reaction with dimethyldichlorosilane (M2) selectivity increased from ca. 65 to 83.7%. The higher M2 selectivity of Ce-CuO is mainly due to its larger surface area and the synergistic effect between CuO and CeO2. This work demonstrates that catalytic performance of the Cu-based can be improved by adding Ce rare-earth element and by carefully controlling their structures. Crown Copyright (C) 2015 Published by Elsevier B.V. All rights reserved.
关键词Hydrothermal Synthesis Cerium-copper Catalysts Composites Rochow Reaction
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.apsusc.2015.10.084
收录类别SCI
语种英语
关键词[WOS]GAS-PHASE OXIDATION ; PREFERENTIAL OXIDATION ; CARBON-MONOXIDE ; NANOPARTICLES ; CERIA ; CO ; NANOSPHERES ; TEMPERATURE ; REDUCTION ; STABILITY
WOS研究方向Chemistry ; Materials Science ; Physics
WOS类目Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
项目资助者National Natural Science Foundation of China(51272252 ; 21206172 ; 21506224)
WOS记录号WOS:000366220600018
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20177
专题多相复杂系统国家重点实验室
作者单位1.Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, 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
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Jin, Zheying,Li, Jing,Shi, Laishun,et al. One-pot hydrothermal growth of raspberry-like CeO2 on CuO microsphere as copper-based catalyst for Rochow reaction[J]. APPLIED SURFACE SCIENCE,2015,359(DEC):120-129.
APA Jin, Zheying,Li, Jing,Shi, Laishun,Ji, Yongjun,Zhong, Ziyi,&Su, Fabing.(2015).One-pot hydrothermal growth of raspberry-like CeO2 on CuO microsphere as copper-based catalyst for Rochow reaction.APPLIED SURFACE SCIENCE,359(DEC),120-129.
MLA Jin, Zheying,et al."One-pot hydrothermal growth of raspberry-like CeO2 on CuO microsphere as copper-based catalyst for Rochow reaction".APPLIED SURFACE SCIENCE 359.DEC(2015):120-129.
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