Gold catalysts for selective aerobic oxidation of the lignan hydroxymatairesinol to oxomatairesinol: Catalyst deactivation and regeneration

Olga A. Simakova, Elena V. Murzina, Anne-Riikka Leino, Päivi Mäki-Arvela, Stefan Willför, Dmitry Yu Murzin*

*Korresponderande författare för detta arbete

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    6 Citeringar (Scopus)

    Sammanfattning

    The lignan oxomatairesinol was synthesized from the biomass-derived lignan hydroxymatairesinol via selective aerobic oxidation over a heterogeneous gold catalyst. The catalyst was prepared by direct ion-exchange and characterized by XRD, TEM and ICP-OES methods. The reaction was carried out at 70 °C and atmospheric pressure in a semi-batch reactor. To reveal the origin of catalyst deactivation, spent catalysts were studied by TEM, XRD, nitrogen physisorption, ICP-OES, TPO, and DSCTGA techniques. Several regeneration procedures were applied-extraction by several solvents and calcinations in the oxidizing atmosphere. The former one was found to be the most effective way for the catalyst regeneration.

    OriginalspråkEngelska
    Sidor (från-till)1011-1019
    Antal sidor9
    TidskriftCatalysis Letters
    Volym142
    DOI
    StatusPublicerad - 2012
    MoE-publikationstypA1 Tidskriftsartikel-refererad

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