CJCU

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (3): 613.

• Articles • Previous Articles     Next Articles

High Temperature Synthesis of Hydrothermally Stable Micro-mesoporous Silica and Al-Doped Mesoporous Silica via Rigid Template

NAN Hai-Ming1,2, QI Juan-Juan1, CAI Qiang1*, SUN Qian-Yao2*, XU Chun-Ming2, LI Heng-De1   

  1. 1.  Key Laboratory of Advanced Materials,  Department of Materials Science and Engineering, Tsinghua University,  Beijing 100084,    China;
    2.  State Key Laboratory of Heavy Oil Processing,  Faculty of Chemical Science and Engineering, China University of Petroleum,  Beijing 102249,  China
  • Received:2010-10-18 Revised:2010-12-12 Online:2011-03-10 Published:2011-02-23
  • Contact: CAI Qiang;SUN Qian-Yao E-mail:caiqiang@mail.tsinghua.edu.cn;qysun@cup.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20676149)和中国石油大学(北京)重质油加工国家重点实验室开放基金资助.

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Abstract: Abstract: High temperature condition is helpful to obtain hydrothermally stable mesoporous silica. In this paper, we synthesized micro-mesoporous silica (designated as TCM-1) and Al-doped mesoporous silica (Al-TCM-1) under high temperature. The self-assembly of α-linolenic acid, which transformed to a rigid mesophase template via inter-micelle polymerization, were successfully leveraged to fabricate hydrothermally stable mesoporous silicas that retained a BET surface area of 678 m2g-1 after hydrothermal treatment in boiling water for 5 days. The 29 Si MAS NMR spectras of as calcined TCM-1 indicates Q4 silicons (Qn= Si(OSi)n(OH)4-n) are dominating, which can explain the high hydrothermal stability of the material.

Key words: Key words: α-linolenic acid, Hydrothermal stable, Inter-molecular polymerization, Micro-mesoporous materials

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