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一种合成大孔径SBA-15介孔分子筛的新方法
引用本文:王树国,黄优优,李金林. 一种合成大孔径SBA-15介孔分子筛的新方法[J]. 中南民族大学学报(自然科学版), 2010, 29(4)
作者姓名:王树国  黄优优  李金林
作者单位:中南民族大学化学与材料科学学院催化材料科学湖北省暨国家民委-教育部共建重点实验室;
摘    要:通过加入无机盐硝酸铵辅助合成大孔径介孔分子筛SBA-15,用小角X-射线粉末衍射(SAXS)、透射电子显微镜(TEM)、N_2吸附脱附等手段对分子筛进行了表征.结果表明:合成的大孔径分子筛SBA-15具有高度有序的介孔结构,孔径约12 nm,比表面积894 m~2·g~(-1),孔容为2.6 cm~3·g~(-1);不加硝酸铵则不能得到具有高有序度的介孔材料.

关 键 词:介孔分子筛  介孔分子筛SBA-15  硝酸铵  孔径

A Novel Method for Synthesis of Large-Pore Mesoporous Molecular Sieve SBA-15
Wang Shuguo,Huang Youyou,Li Jinlin. A Novel Method for Synthesis of Large-Pore Mesoporous Molecular Sieve SBA-15[J]. Journal of South-Central Univ for, 2010, 29(4)
Authors:Wang Shuguo  Huang Youyou  Li Jinlin
Affiliation:Wang Shuguo,Huang Youyou,Li Jinlin (Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education,Hubei Province,College of Chemistry and Material Science,South-Central University for Nationalities,Wuhan 430074,China)
Abstract:Large-pore mesoporous molecular sieve SBA-15 was synthesized by adding inorganic salt ammonium nitrate salt. Small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM) and N_2 adsorption-desorption were used to characterize the samples. The results show that the synthesized molecular sieve SBA-15 has remained ordered mesoporous structure with pore diameter of up to 12 nm. Without the addition of ammonium nitrate, mesoporous material with ordered mesoporous structure was not obtained.
Keywords:mesoporous molecular sieve  SBA-15  ammonium nitrate  pore diameter  
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