中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Preparation of ordered mesoporous crystalline alumina replicated by mesoporous carbon

文献类型:期刊论文

作者Liu, Qian; Wang, Aiqin; Xu, Jinming; Zhang, Yanhua; Wang, Xiaodong; Zhang, Tao
刊名microporous and mesoporous materials
出版日期2008-12-01
卷号116期号:1-3页码:461-468
关键词Ordered Crystallize Mesoporous alumina Template Synthesis
产权排序1;1
通讯作者张涛
英文摘要ordered mesoporous alumina with crystalline framework walls has been fabricated using a repeated nanocasting strategy. mesoporous silica and mesoporous carbon were successively employed as the exotemplates. constrained by the rigid carbon template structure, the alumina precursor in the channels of the carbon template could be well crystallized by elevating the temperature in an inert atmosphere, yielding gamma-al(2)o(3) with ordered mesoporous structure upon the carbon template removal. the resulting alumina sample displays a faithfully negative replication both in the pore arrangement and particle morphology of the carbon template, thus a positive replication of the original silica template. the mean pore sizes of the alumina replicas can be tuned from 4.8 nm to 6.2 nm through choosing mesoporous silicas with different pore sizes as the templates. the ordered structure maintained stable until 750 degrees c, above which it was significantly destroyed due to the overgrowth of the alumina nanocrystallites and the phase transformation-associated constraint. besides the hexagonally ordering, a 3d cubic ordered mesoporous alumina with gamma-alumina framework walls has also been prepared using cubic cmk-8 as the template. (c) 2008 elsevier inc. all rights reserved.
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]molecular-sieves ; template synthesis ; metal-oxides ; silica ; copolymer ; mesostructures ; mechanism ; triblock ; cmk-3 ; acid
收录类别SCI
原文出处true
语种英语
WOS记录号WOS:000261133600064
公开日期2010-11-30
源URL[http://159.226.238.44/handle/321008/100827]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Liu, Qian,Wang, Aiqin,Xu, Jinming,et al. Preparation of ordered mesoporous crystalline alumina replicated by mesoporous carbon[J]. microporous and mesoporous materials,2008,116(1-3):461-468.
APA Liu, Qian,Wang, Aiqin,Xu, Jinming,Zhang, Yanhua,Wang, Xiaodong,&Zhang, Tao.(2008).Preparation of ordered mesoporous crystalline alumina replicated by mesoporous carbon.microporous and mesoporous materials,116(1-3),461-468.
MLA Liu, Qian,et al."Preparation of ordered mesoporous crystalline alumina replicated by mesoporous carbon".microporous and mesoporous materials 116.1-3(2008):461-468.

入库方式: OAI收割

来源:大连化学物理研究所

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