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题名: CONTROLLED GROWTH OF COPPER NANOPARTICLES AND NANORODS IN THE CHANNELS OF SBA-15 BY SUPERCRITICAL FLUID DEPOSITION
作者: Yin, Jian-Zhong1;  Xu, Qin-Qin1;  Wang, Ai-Qin2
关键词: Co-solvent ;  Copper ;  Nanocomposites ;  Nanorods ;  Supercritical fluid deposition
刊名: CHEMICAL ENGINEERING COMMUNICATIONS
发表日期: 2010
DOI: 10.1080/00986440903249676
卷: 197, 期:4, 页:627-632
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: Copper nanoparticles and nanorods were prepared in the one-dimensional channels of SBA-15 supported by a modified supercritical fluid deposition (SCFD) method. In this approach, cheap and widely available copper nitrate, which is insoluble in supercritical CO2 (scCO2), was used as the copper source and ethanol as the co-solvent, thus avoiding the employment of expensive and less available scCO2-soluble precursors. The deposition was carried out at the pressure of 21-25MPa and temperature of 50 degrees C, followed by calcinations at 500 degrees C and H2 reduction at 500 degrees C. The results showed that highly dispersed Cu nanoparticles or nanorods were obtained controllably just by varying the deposition time, as characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). On the other hand, when Cu(acac)2 was used as the precursor and without any co-solvent, only nanoparticles were formed in the channels of SBA-15 no matter how long the deposition time.
关键词[WOS]: MESOPOROUS SILICA ;  CARBON-DIOXIDE ;  METAL NANOWIRES ;  SEED OIL ;  EXTRACTION ;  NANOTUBES ;  LIQUIDS ;  ROUTE ;  CO2
语种: 英语
WOS记录号: WOS:000272591400014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142021
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China

Recommended Citation:
Yin, Jian-Zhong,Xu, Qin-Qin,Wang, Ai-Qin. CONTROLLED GROWTH OF COPPER NANOPARTICLES AND NANORODS IN THE CHANNELS OF SBA-15 BY SUPERCRITICAL FLUID DEPOSITION[J]. CHEMICAL ENGINEERING COMMUNICATIONS,2010,197(4):627-632.
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