Adsorption studies on ordered mesoporous materials (MCM-41)

J.J. Jänchen, M.C.M. Busio, M. Hintze, H. Stach, J.H.C. Hooff, van

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

17 Citations (Scopus)


Ordered mesoporous materials, MCM-41, with varying Si/Al ratios have been synthesised and characterised by adsorption, XRD, NMR, and FTIR measurements. 27Al MAS NMR shows four-fold co-ordination of Al incorporated into the structure. The combined study by microcalorimetry and FTIR, using acetonitrile as probe shows a few strong Lewis sites and only weak Brønsted acidity. The physisorption properties were analysed by N2, n-hexane, benzene, acetonitrile, methanol and water adsorption using microcalorimetry and isotherm measurements. MCM-41 shows adsorption behaviour of a well-defined mesoporous molecular sieve. The heat of adsorption of a non-polar molecule is mainly determined by the pore diameter of the porous material. A characteristic feature of all applied adsorptives is capillary condensation. Whereas isotherms of water are completely irreversible and acetonitrile shows a small hysteresis, isotherms of the non-polar benzene, n-hexane, and nitrogen are completely reversible.
Original languageEnglish
Title of host publicationProgress in zeolite and microporous materials : proceedings of the 11th International Zeolite Conference, Seoul, Korea, August 12-17, 1996
EditorsH. Chon
Place of PublicationAmsterdam
ISBN (Print)0-444-82344-1
Publication statusPublished - 1996
Event11th International Zeolite conference - Seoul, Korea, Democratic People's Republic of
Duration: 12 Aug 199617 Aug 1996
Conference number: 11

Publication series

NameStudies in Surface Science and Catalysis
ISSN (Print)0167-2991


Conference11th International Zeolite conference
Abbreviated titleIZC
Country/TerritoryKorea, Democratic People's Republic of
Other11th International Zeolite conference, Seoul, Korea, 12-17-August 1996


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