Avoiding mass transfert limitations in carbon supported catalysis by using carbon xerogels as supports

Nathalie Job, Benoît Heinrichs, Angélique Léonard, Jean-François Colomer, José Marien, Jean-Paul Pirard

    Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

    Résumé

    Porous carbon materials with tailored pore texture can be prepared by evaporative drying and pyrolysis of resorcinol-formaldehyde aqueous gels. The pore size is easily controlled by the pH of the precursor solution. These materials, called "carbon xerogels", can be used as catalyst supports, like activated carbons. Since the texture of these materials is adjustable, it is possible to avoid diffusional limitations that are often encountered when a microporous activated carbon is used as support by choosing a support with the appropriate pore size. The meso- or macropore size of carbon xerogels can be enlarged so as to simplify the reactant diffusion, which leads to better catalytic performances.
    langue originaleAnglais
    Pages (de - à)571-575
    Nombre de pages5
    journalChemistry of Sustainable Development
    Volume6
    Numéro de publication4
    Etat de la publicationPublié - 2006

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