Synthesis of Si-based mesoporous materials with different structural regularity

Lifang Chen, Jesus López, Jin An Wang, Luis E. Noreña, Guoxian Yu, Fahai Cao, Yueqing Song, Xiaolong Zhou

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Two types of mesoporous Si-MCM-41 materials were synthesized via a cationic surfactant template method using different Si-precursors. The materials obtained were characterized by FTIR, XRD, BET, TEM and 29Si MAS-NMR techniques. When fumed silica was used as Si precursor, a Si-MCM-41-I solid with wormhole-like pore topologies was obtained. However, when tetraethylorthosilicate (TEOS) was used as Si precursor, a mesoporous Si-MCM-41-II solid with hexagonal arranges and a long-range ordered structure could be obtained. These two kinds of mesoporous materials had a uniform pore size distribution with an average pore diameter within 2.3-2.8 nm. Rather weak Lewis acid sites were formed on both the Si-MCM-41 samples prepared by the two methods.

    Original languageEnglish
    Title of host publicationAdvances in New Catalytic Materials
    Pages38-44
    Number of pages7
    DOIs
    StatePublished - 1 Dec 2010
    Event2nd International Symposium on New Catalytic Materials, NCM-2 - Cancun, Mexico
    Duration: 16 Aug 200920 Aug 2009

    Publication series

    NameAdvanced Materials Research
    Volume132
    ISSN (Print)1022-6680

    Conference

    Conference2nd International Symposium on New Catalytic Materials, NCM-2
    CountryMexico
    CityCancun
    Period16/08/0920/08/09

      Fingerprint

    Keywords

    • Fumed silica
    • Si-MCM-41
    • Structure ordering
    • Surface acidity
    • TEOS
    • Textural property

    Cite this

    Chen, L., López, J., Wang, J. A., Noreña, L. E., Yu, G., Cao, F., Song, Y., & Zhou, X. (2010). Synthesis of Si-based mesoporous materials with different structural regularity. In Advances in New Catalytic Materials (pp. 38-44). (Advanced Materials Research; Vol. 132). https://doi.org/10.4028/www.scientific.net/AMR.132.38