DICP OpenIR
Subject Area物理化学
An acid-free route for the facile synthesis of iron-functionalized mesoporous silicas: Transformation between hollow nanospheres and cage-like mesostructures
Xin, Hongchuan1,2; Zhao, Jiao1; Li, Xiaobo1; Tang, Jianting1; Yang, Qihua1; Yang QH(杨启华)
KeywordAcid-free Iron Mesoporous Hollow Nanospheres Fdu-12
Source PublicationMICROPOROUS AND MESOPOROUS MATERIALS
2014-05-15
DOI10.1016/j.micromeso.2014.01.019
Volume190Issue:1Pages:54-62
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordRESONANCE RAMAN-SPECTROSCOPY ; BUFFER SOLUTION ; HETEROGENEOUS CATALYSTS ; ASYMMETRIC CATALYSIS ; SELECTIVE OXIDATION ; TEMPLATING APPROACH ; NEUTRAL CONDITIONS ; DRUG-DELIVERY ; NITROUS-OXIDE ; ACTIVE-SITES
AbstractIron-substituted silicas with hollow nanospherical morphology and cage-like mesostructure have been synthesized using triblock copolymer F127 as surfactant and tetramethoxysilane (TMOS) as silica source with no necessary addition of mineral acids. Iron-functionalized hollow nanospheres were obtained using Fe(acac)(3) as iron source. When Fe(NO3)(3) was employed as iron source, iron-containing cage-like FDU-12 mesostructure and hollow nanospheres were formed with Fe/Si molar ratio lower than 0.008 and higher than 0.015, respectively. The formation of hollow spheres at high Fe/Si ratio can be regarded as gradually dissociation of nanocages from Fe-FDU-12. The structure of the iron centers was determined by spectroscopic methods (UV-vis and UV-Raman measurements) and by elemental analyses. The facile structural evolution between cage-like and nanospherical structures may be helpful for further understanding the formation mechanism of mesoporous silicas. (C) 2014 Elsevier Inc. All rights reserved.
Language英语
WOS IDWOS:000335102500008
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/144218
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang QH(杨启华)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Xin, Hongchuan,Zhao, Jiao,Li, Xiaobo,et al. An acid-free route for the facile synthesis of iron-functionalized mesoporous silicas: Transformation between hollow nanospheres and cage-like mesostructures[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2014,190(1):54-62.
APA Xin, Hongchuan,Zhao, Jiao,Li, Xiaobo,Tang, Jianting,Yang, Qihua,&杨启华.(2014).An acid-free route for the facile synthesis of iron-functionalized mesoporous silicas: Transformation between hollow nanospheres and cage-like mesostructures.MICROPOROUS AND MESOPOROUS MATERIALS,190(1),54-62.
MLA Xin, Hongchuan,et al."An acid-free route for the facile synthesis of iron-functionalized mesoporous silicas: Transformation between hollow nanospheres and cage-like mesostructures".MICROPOROUS AND MESOPOROUS MATERIALS 190.1(2014):54-62.
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