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Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (13): 1241-1244. Previous Articles    

Reports

缓冲体系中高热和水热稳定性的MCM-48介孔分子筛的合成

孔令东1，刘苏2，颜学武1，贺鹤勇1，李全芝*1   

  1. (1复旦大学化学系和上海市分子催化及创新材料实验室 上海 200433)
    (2复旦大学环境科学与工程系 上海 200433)
  • 投稿日期:2004-09-28 修回日期:2005-03-08 发布日期:2010-12-10
  • 通讯作者: 李全芝

Synthesis of Highly Thermally and Hydrothermally Stable MCM-48 in Buffer Solution

KONG Ling-Dong1, LIU Su2, YAN Xue-Wu1, HE He-Yong1, LI Quan-Zhi*1   

  1. (1 Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433)
    (2 Department of Environmental Science and Engineering, Fudan University, Shanghai 200433)
  • Received:2004-09-28 Revised:2005-03-08 Published:2010-12-10
  • Contact: LI Quan-Zhi

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Mesoporous MCM-48 with high thermal and hydrothermal stability has been successfully synthesized in buffer solution by mixed cationic-nonionic surfactant templating pathway. The synthesized material was characterized by XRD, N2 adsorption-desorption isotherms, 29Si and 31P MAS NMR. The characteristic results showed that the MCM-48 material possessed high specific surface areas and well-ordered channel systems. The MCM-48 sample treated with 100% steam at 600 ℃ for 8～10 h or calcined in air at 900 ℃ for 15 h could still retain its cubic structure, indicating that the sample has high thermal and hydrothermal stability.

Key words: buffering system, MCM-48, mixed surfactant, mesoporous material