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Sol-gel synthesis, characterization and catalytic activity of gamma-alumina with bimodal mesopore distribution

  • Vladimir Vinogradov
  • , Alexander Vinogradov
  • , Anton Kraev
  • , Alexander Agafonov
  • , Vadim Kessler

    Publication: Contribution to journalJournal articlepeer-review

    Abstract

    In this study, boehmite sols were used for preparation of mesoporous gamma-alumina with bimodal mesopore distribution. Superfine nanospheres of poly(methyl methacrylate) (PMMA) prepared by water based emulsion polymerization method were used as a template. Nitrogen sorption revealed that aluminas prepared using this approach demonstrated bimodal mesopore size distribution with maxima at 3.8 and 25.7 nm, respectively. Catalytic tests showed that bimodal mesopore distribution within gamma-Al2O3 prepared with PMMA nanospheres as a template provides improved catalytic activity in the methanol dehydration reaction.
    Original languageEnglish
    Pages (from-to)155-161
    Number of pages7
    JournalJournal of Sol-Gel Science and Technology
    Volume68
    Issue number2
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Sol-gel synthesis
    • Dimethyl ether
    • Template
    • Mesopore

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