Počet záznamů: 1

Direct synthesis of carbon-templating mesoporous ZSM-5 using microwave heating

  1. 1.
    0349507 - UFCH-W 2011 RIV US eng J - Článek v odborném periodiku
    Koo, J.-B. - Jiang, N. - Saravanamurugan, S. - Voláková, Martina - Musilová, Zuzana - Čejka, Jiří - Park, S.-E.
    Direct synthesis of carbon-templating mesoporous ZSM-5 using microwave heating.
    Journal of Catalysis. Roč. 276, č. 2 (2010), s. 327-334 ISSN 0021-9517
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: mesoporous ZSM-5 * template * microwave irradiation * carbon
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 5.415, rok: 2010

    Carbon-templated mesoporous ZSM-5 zeolites were synthesized directly avoiding a drying process. Carbon nanoparticles were simply mixed into synthesis precursor of ZSM-5 and hydrothermally treated by microwave irradiation. The amount of mesopores formed inside the ZSM-5 single crystals was controllable by adjusting the amount of carbon used. For comparison, mesoporous ZSM-5 zeolites have also been synthesized under hydrothermal conditions. The influence of microwave irradiation on mesoporous ZSM-5 materials was thoroughly investigated by using nitrogen adsorption/desorption studies and 27Al MAS NMR. The nature of acid sites both in the micropores (internal) and on the surface of mesopores (external) was investigated by in situ FTIR spectroscopy using pyridine (Py) and 2′,6′-di-tert-butylpyridine (DTBPy) as a probe molecules.
    Trvalý link: http://hdl.handle.net/11104/0189724