Synthesis of SBA-15 type mesoporous organosilicas with diethylenebenzene in the framework and post-synthetic framework modification
文献类型：期刊论文
| 作者 | Li, Congming; Yang, He; Shi, Xin; Liu, Ran; Yang, Qihua |
| 刊名 | microporous and mesoporous materials
 |
| 出版日期 | 2007-01-05 |
| 卷号 | 98期号:1-3页码:220-226 |
| 关键词 | 1 mesoporous organosilica chemical modification sulfonation esterification 4-bis(trimethoxysitylethyl)benzene |
| 产权排序 | 1;1 |
| 通讯作者 | 杨启华 |
| 英文摘要 | the sba-15 type periodic mesoporous organosilicas (pmos) containing different fraction of 1,4-diethylenebenzene groups in the framework were synthesized by co-condensation of 1,4-bis(trimethoxysilylethyl)benzene with tetramethoxysilane under acidic conditions using triblock copolymer pluronic p123 as structural directing agent. the results of x-ray diffraction pattern (xrd), nitrogen sorption isotherm, and transmission electron microscopy (tem) show that all materials have well-ordered mesoporous structure with uniform pore size distributions. the acidic sites were incorporated in the mesoporous framework by post-synthetic framework modification of 1,4-diethylenebenzene by sulfonation. the framework composition of the mesoporous organosilicas before and after modification was fully characterized by uv raman spectroscopy, and c-13 cp-mas and si-29 mas nmr. from elemental analysis, it can be estimated that about 40% of the organic group within the mesoporous framework is available for further chemical reaction. the pmos with aryl sulfonaic acid groups in the framework are efficient solid acids for the esterification of ethanol with aliphatic acid. with the alkyl chain of the aliphatic acid increasing, the activity of the material is enhanced by more amounts of 1,4-diethylenebenzene incorporated in the mesoporous framework. the post-synthetic modification is a facile approach for the generation of new functional groups in the mesoporous framewrok of pmos. (c) 2006 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-scale periodicity ; copolymer-assisted synthesis ; co-condensation ; benzene-silica ; organic groups ; walls ; morphology ; pores ; chimo |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000243695000029 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98463]  |
| 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 | Li, Congming,Yang, He,Shi, Xin,et al. Synthesis of SBA-15 type mesoporous organosilicas with diethylenebenzene in the framework and post-synthetic framework modification[J]. microporous and mesoporous materials,2007,98(1-3):220-226. |
| APA | Li, Congming,Yang, He,Shi, Xin,Liu, Ran,&Yang, Qihua.(2007).Synthesis of SBA-15 type mesoporous organosilicas with diethylenebenzene in the framework and post-synthetic framework modification.microporous and mesoporous materials,98(1-3),220-226. |
| MLA | Li, Congming,et al."Synthesis of SBA-15 type mesoporous organosilicas with diethylenebenzene in the framework and post-synthetic framework modification".microporous and mesoporous materials 98.1-3(2007):220-226. |
入库方式： OAI收割
来源：大连化学物理研究所
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