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Organic-inorganic hybrid hollow nanospheres with microwindows on the shell
Liu, Jian1,2; Yang, Qihua1; Zhang, Lei1; Yang, Hengquan1; Gao, Jinsuo1,2; Li, Can1; Yang QH(杨启华); Li C(李灿); Yang QH(杨启华); Li C(李灿)
刊名CHEMISTRY OF MATERIALS
2008-07-08
DOI10.1021/cm800192f
20期:13页:4268-4275
收录类别SCI
文章类型Article
部门归属5
项目归属506,503
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Materials Science
关键词[WOS]PERIODIC MESOPOROUS ORGANOSILICAS ; SILICA NANOSPHERES ; BRIDGED POLYSILSESQUIOXANES ; TRIBLOCK COPOLYMERS ; CONTROLLED-RELEASE ; AQUEOUS-SOLUTIONS ; IN-SITU ; NANOPARTICLES ; SURFACTANT ; SOLIDS
英文摘要We demonstrate, for the first time, that organic-inorganic hybrid hollow nanospheres with controllable size (12-20 nm) and shell thickness (4-7 nm) can be successfully synthesized through the condensation of 1,2-bis(trimethoxysilyl)ethane (BTME) around an inorganic-electrolyte-stabilized F127 micelle under a mild buffer condition (NaH2PO4-Na2HPO4, pH similar to 7.0). The hollow spheres feature microwindows with pore size about 0.5-1.2 nm on the shell, which allow the guest molecules to diffuse into the hollow cavities. It was found that the concentration of the buffer solution in the synthesis was crucial to the formation of hollow nanosphere. At a low buffer concentration (20-100 mM), the surfactant exists as individual micelle. A core/shell nanocomposite was formed by the deposition of BTME at the corona of individual micelle, which leads to the formation of organic-inorganic hybrid nanoparticles with hollow interior after the extraction of the surfactant. The aggregation of individual micelles was observed at higher buffer concentration (>200 mM), which favors the formation of irregularly shaped particles with ordered mesostructure. This work presents a novel and facile strategy to fabricate hollow nanospheres with microwindows, which provides a versatile platform for practical applications of organic-inorganic hybrid materials in a broad range of fields such as catalysis, encapsulation, and drug delivery, etc.
语种英语
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WOS记录号WOS:000257279200018
引用统计
被引频次:104[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/100167
专题中国科学院大连化学物理研究所
通讯作者Yang QH(杨启华); Li C(李灿); Yang QH(杨启华); Li C(李灿)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Liu, Jian,Yang, Qihua,Zhang, Lei,et al. Organic-inorganic hybrid hollow nanospheres with microwindows on the shell[J]. CHEMISTRY OF MATERIALS,2008,20(13):4268-4275.
APA Liu, Jian.,Yang, Qihua.,Zhang, Lei.,Yang, Hengquan.,Gao, Jinsuo.,...&李灿.(2008).Organic-inorganic hybrid hollow nanospheres with microwindows on the shell.CHEMISTRY OF MATERIALS,20(13),4268-4275.
MLA Liu, Jian,et al."Organic-inorganic hybrid hollow nanospheres with microwindows on the shell".CHEMISTRY OF MATERIALS 20.13(2008):4268-4275.
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