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Synthesis of CuO/SBA-15 nanocomposite in ternary system of CO2, inorganic salt and co-solvent
Qiao, Guo-Yue1; Xu, Qin-Qin1; Yin, Jian-Zhong1; Wang, Ai-Qin2; Xu, Gang1
关键词Supercritical Co2 Cuo Mesoporous Silica Controllable Synthesis Co-solvent
刊名JOURNAL OF SUPERCRITICAL FLUIDS
2017-10-01
DOI10.1016/j.supflu.2017.05.004
128页:18-25
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]SUPERCRITICAL CARBON-DIOXIDE ; DISPERSED SILVER NANOPARTICLES ; DOUBLE SOLVENT TECHNIQUE ; FLUID DEPOSITION ; MESOPOROUS SILICA ; CATALYTIC PERFORMANCE ; OXIDE ; COPPER ; NANOSTRUCTURES ; COMPOSITES
英文摘要Highly dispersed CuO nanoparticles were successfully synthesized within mesoporous silica in supercritical CO2 using inorganic Cu precursors. Co-solvent and deposition time were found to have significant influence on the metal loading and the morphology of the nanophase. The agglomerates of nanoparticle outside the SBA-15 channels were obtained, whose size were about 20-80 nm, when ethanol, 1,3 propylene glycol and n-butyl alcohol were used as co-solvent, although the inorganic precursor has large solubility in them. When ethylene glycol was used as co-solvents, large amounts of continuous nanowires were found inside the SBA-15 channels. However, when the mixture of ethylene glycol and water were used as co-solvent, short nanorods or even nanoparticles were found instead. It indicates that the role of the co-solvent may have many aspects, such as enhancement of the precursor dissolution, change of the interaction between the precursor and the substrates and so on. In addition, it was found that a larger amount of co-solvent had negative effect on the metal loading, mainly due to the phase separation of the ternary system of supercritical CO2, co-solvent and inorganic precursors.
语种英语
WOS记录号WOS:000408287400003
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149877
专题中国科学院大连化学物理研究所
作者单位1.Daliarz Univ Technol, Sch Chem Machinery, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Qiao, Guo-Yue,Xu, Qin-Qin,Yin, Jian-Zhong,et al. Synthesis of CuO/SBA-15 nanocomposite in ternary system of CO2, inorganic salt and co-solvent[J]. JOURNAL OF SUPERCRITICAL FLUIDS,2017,128:18-25.
APA Qiao, Guo-Yue,Xu, Qin-Qin,Yin, Jian-Zhong,Wang, Ai-Qin,&Xu, Gang.(2017).Synthesis of CuO/SBA-15 nanocomposite in ternary system of CO2, inorganic salt and co-solvent.JOURNAL OF SUPERCRITICAL FLUIDS,128,18-25.
MLA Qiao, Guo-Yue,et al."Synthesis of CuO/SBA-15 nanocomposite in ternary system of CO2, inorganic salt and co-solvent".JOURNAL OF SUPERCRITICAL FLUIDS 128(2017):18-25.
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