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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)
Source PublicationCHEMISTRY OF MATERIALS
2008-07-08
DOI10.1021/cm800192f
Volume20Issue:13Pages:4268-4275
Indexed BySCI
SubtypeArticle
Department5
Funding Project506,503
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Materials Science
WOS KeywordPERIODIC MESOPOROUS ORGANOSILICAS ; SILICA NANOSPHERES ; BRIDGED POLYSILSESQUIOXANES ; TRIBLOCK COPOLYMERS ; CONTROLLED-RELEASE ; AQUEOUS-SOLUTIONS ; IN-SITU ; NANOPARTICLES ; SURFACTANT ; SOLIDS
AbstractWe 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.
Language英语
URL查看原文
WOS IDWOS:000257279200018
Citation statistics
Cited Times:105[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/100167
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang QH(杨启华); Li C(李灿); Yang QH(杨启华); Li C(李灿)
Affiliation1.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
Recommended Citation
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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