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

0349507 - ÚFCH JH 2011 RIV US eng J - Journal Article
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. E-ISSN 1090-2694
Institutional research plan: CEZ:AV0Z40400503
Keywords : mesoporous ZSM-5 * template * microwave irradiation * carbon
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 5.415, year: 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.
Permanent Link: http://hdl.handle.net/11104/0189724