Layered Minerals, Mesoporous Oxides, Nanostructures

RESEARCH TOPICS

Design, synthesis, characterisation and catalytic applications of nanostructured materials:

  • modified clays, hydrotalcite-derived mixed oxide catalysts, mesoporous oxides as supports for transition metal ions and organometallic compounds, heteropoly compounds
  • complex nanocomposites based on intercalated layered compounds

The reactions of interest address environmental catalysis issues, and include combustion of volatile organic compounds, and liquid phase reactions such as Baeyer-Villiger oxidations with H2O2 or oxygen, aerobic oxidation of alkanes, olefins and aromatics, hydrogenations of alkynes and ketones under mild conditions.

METHODS

  • Synthesis and modification of cationic and anionic clay-derived and nanoporous materials under various conditions.
  • XRD, surface area/porosity measurements, chemical analysis - ICP OES, TG/TDG/DTA, FTIR, UV-Vis, NMR, XPS, SEM/TEM.

    MAIN ACHIEVEMENTS

    • Design of novel catalysts for combustion of volatile organics based on composites of exfoliated clays and hydrotalcites prepared by inverse microemulsion.
    • Design and synthesis of efficient pillared interlayered clay (PILC)-based catalysts for removal of chlorinated volatile organics.
    • Design and synthesis of efficient hydrotalcite-derived catalysts for industrial scale combustion of volatile organic compounds.
    • Discovery of a catalytic reaction capable of probing the spatial distribution of Al in the framework of mesoporous aluminosilicates.
    • Determination of the nature of mixed Ti-Zr pillars in PILC catalysts.
    • Broadening of the spectrum of heteropolyanions suitable for insertion into the layered double hydroxides by using the electrochemically reduced anionic species.
    • Determination of factors governing the catalytic performance of Mg-Al hydrotalcite-like materials in Baeyer Villiger oxidation of cyclohexanone with H2O2.