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学科主题物理化学
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)
关键词Acid-free Iron Mesoporous Hollow Nanospheres Fdu-12
刊名MICROPOROUS AND MESOPOROUS MATERIALS
2014-05-15
DOI10.1016/j.micromeso.2014.01.019
190期:1页:54-62
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]RESONANCE RAMAN-SPECTROSCOPY ; BUFFER SOLUTION ; HETEROGENEOUS CATALYSTS ; ASYMMETRIC CATALYSIS ; SELECTIVE OXIDATION ; TEMPLATING APPROACH ; NEUTRAL CONDITIONS ; DRUG-DELIVERY ; NITROUS-OXIDE ; ACTIVE-SITES
英文摘要Iron-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.
语种英语
WOS记录号WOS:000335102500008
引用统计
被引频次:8[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/321008/144218
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)
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, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China
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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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