室温离子液体辅助制备中孔 γ-Al2O3

doi:10.3724/SP.J.1077.2011.00134

无机材料学报 ›› 2011, Vol. 26 ›› Issue (2): 134-138.DOI: 10.3724/SP.J.1077.2011.00134 CSTR: 32189.14.SP.J.1077.2011.00134

室温离子液体辅助制备中孔 γ-Al₂O₃

刘志, 邓丽萍, 宋岩, 刘兴海

辽宁师范大学化学化工学院功能材料化学研究所,大连116029

收稿日期:2010-05-07 修回日期:2010-08-02 出版日期:2011-02-20 网络出版日期:2011-01-21
作者简介:刘志(1976-), 男, 博士. E-mail:zhiliu@dicp.ac.cn
基金资助:
辽宁省教育厅科研基金(2008368);辽宁省博士启动基金(20091047)

Synthesisof Mesoporous γ-alumina Assisted by Room Temperature Ionic Liquid

LIU Zhi, DENG Li-Ping, SONG Yan, LIU Xing-Hai

Institute of Chemistry for Functionalized Materials, Faculty ofChemistry and Chemical Engneering, Liaoning Normal University, Dalian 116029, China

Received:2010-05-07 Revised:2010-08-02 Published:2011-02-20 Online:2011-01-21
Supported by:
Foundation of Liaoning Province Educational Committee (2008368) ; Doctoral Program Foundation of Liaoning Province (20091047)

摘要/Abstract

摘要： 液相反应条件下,以薄姆石溶胶为铝源, 室温离子液体1-甲基-3-丁基咪唑四氟硼酸盐([BMIM][BF₄])存在下制备了晶态结构中孔 γ-Al₂O₃. 采用N₂物理吸附,X射线衍射, 透射电子显微镜,²⁷Al魔角固体核磁共振对所制备的样品进行了结构表征.结果表明通过调节[BMIM][BF₄]的用量,得到了孔道结构呈脚手架状、比表面积较大、平均孔径在12nm左右、孔容在1.0cm³/g以上,孔径分布较宽的介孔氧化铝; [BMIM][BF₄]加入能够明显改善氧化铝的孔道结构.

关键词: 室温离子液体, 中孔材料, 氧化铝, 合成

Abstract: Boehmite Sols were used as aluminum precursorsfor preparing mesoporous alumina with crystalline framework walls in thepresence of 1-butyl-3-methyl imidazolium tetrafluoroborate ([BMIM][BF₄]). T hestructureof theγ-Al₂O₃wasexamined by N₂ physicaladsorption, X-ray powder diffraction (XRD), transmission electron microscope (TEM), and solidstate ²⁷Al MAS NMR spectra. The results show that aluminawith the three-dimensional interconnected scaffold-like channels displays very richporosities with large mesopores, and the addition of [BMIM][BF₄]could improve the pore properties of alumina significantly.

Key words: room temperature ionic liquid, mesoporous material, alumina, synthesis

中图分类号:

TB321

刘志, 邓丽萍, 宋岩, 刘兴海. 室温离子液体辅助制备中孔 γ-Al₂O₃[J]. 无机材料学报, 2011, 26(2): 134-138.

LIU Zhi, DENG Li-Ping, SONG Yan, LIU Xing-Hai. Synthesisof Mesoporous γ-alumina Assisted by Room Temperature Ionic Liquid[J]. Journal of Inorganic Materials, 2011, 26(2): 134-138.

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室温离子液体辅助制备中孔 γ-Al₂O₃

Synthesisof Mesoporous γ-alumina Assisted by Room Temperature Ionic Liquid

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