Synthesis of Polystyrene Beads for Hard-Templating of Three-Dimensionally Ordered Macroporosity and Hierarchical Texture of Adsorbents and Catalysts

Ekaterina V. Parkhomchuk, Victoria S. Semeykina, Ksenia A. Sashkina, Alexey G. Okunev, Anton I. Lysikov, Valentin N. Parmon

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Methods of polystyrene beads producing with properties appropriate for catalyst and adsorbent synthesis have been investigated. Hierarchical silicalite-1 and Fe-silicalite-1 with zeolitic MFI structure, as well as three-dimensionally ordered titania, silica, alumina and zirconia have been prepared by hard-templating method using polystyrene beads. The materials were characterized by X-ray diffraction, scanning and transmission electron microscopies, low-temperature nitrogen adsorption technique and mercury porosimetry. Developed meso- and macroporous structure of the templated materials facilitated the supply of macromolecular reactants to the material surface and reduced the negative effect of byproduct deposition, resulting in favored advantages of the materials in a wide range of processes: hydroconversion of heavy oil, wet hydrogen peroxide oxidation of organic substrates in water, photocatalysis and gas chromatographic analysis. The obtained results of the material applications showed their potential attractiveness as catalysts and adsorbents.

Original languageEnglish
Pages (from-to)178-189
Number of pages12
JournalTopics in Catalysis
Volume60
Issue number1-2
DOIs
Publication statusPublished - Feb 2017

Keywords

  • 3DOM oxides
  • Alumina
  • Hierarchical zeolite
  • Polystyrene beads
  • Silica
  • Titania
  • POROSITY
  • HEAVY OIL
  • GAMMA-ALUMINA
  • AQUEOUS-PHASE POLYMERIZATION
  • SILICA
  • METAL-OXIDES
  • TITANIA

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