| 正己烷辅助合成小孔径大孔容介孔泡沫氧化硅材料 |
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| 引用本文： | 张海东.正己烷辅助合成小孔径大孔容介孔泡沫氧化硅材料[J].材料导报,2009,23(22). |
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| 作者姓名： | 张海东 |
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| 作者单位： | 重庆工商大学废油资源化技术与装备教育部工程中心催化研究所,重庆,400067 |
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| 基金项目： | 重庆市教育委员会科学技术研究项目，重庆市科委自然科学基金计划资助项目 |
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| 摘 要： | 在正己烷-三嵌段共聚物(EO_(20)-PO_(70)-EO_(20),P123)体系中合成了小孔径大孔容介孔泡沫(MCF)氧化硅材料.采用高分辨扫描电镜、透射电镜、N_2吸附-脱附和小角XRD,对其孔道结构、型貌、比表面积、孔容等进行了表征.对合成条件的研究表明,在静置条件下水解TEOS合成的样品,其比表面积、孔径、孔容都比在搅拌下水解合成的样品明显增加,其中孔容可增加68%,达到2.32cm~3/g.
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| 关 键 词： | 介孔材料 泡沫 正己烷 氧化硅 |
n-hexane Assisted Synthesis of Mesostructure Cellular Foam Silica Material with Little Pore Size and Big Pore Volume |
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| ZHANG Haidong.n-hexane Assisted Synthesis of Mesostructure Cellular Foam Silica Material with Little Pore Size and Big Pore Volume[J].Materials Review,2009,23(22). |
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| Authors: | ZHANG Haidong |
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| Abstract: | Mesostructure cellar foam(MCF) materials with little pore size and big pore volume are prepared in an n-hexane-P123 system. High resolution SEM, TEM, N_2 adsorption-desorption, small angle XRD are employed to study the samples prepared under stirring or static conditions. The hydrolysis of TEOS under static condition results in a remarkable increases of specific area, pore size and pore volume. Particularly, the increment of pore volume reaches 68% and then an MCF material with pore volume up to 2.32cm~3/g has been successfully synthesized. |
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| Keywords: | mesoporous materials foam n-hexane silica |
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