Acidic properties of metal substituted aluminophosphates studied by adsorption calorimetry and IR spectroscopy

J.J. Janchen, M.J. Haanepen, M.P.J. Peeters, J.H.M.C. Wolput, van, J.P. Wolthuizen, J.H.C. Hooff, van

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

15 Citaten (Scopus)

Samenvatting

The heats of adsorption of MeCN on metal substituted AlPO4-5 and AlPO4-11 compared to the pure AlPO's indicate the formation of strong acidic sites. Besides these strong sites some weaker acidic centers, probably P-OH groups were found. Accordingly, IR measurements on the loaded MeAPO's show some weakly Broensted bonded MeCN in combination with a strong Lewis complex. The Lewis bonded MeCN in the MeAPO's originate from coordinative interaction of the lone pair with the bivalent framework metal ions such as Mg2+, Mn2+, Co2+ or Zn2+. [on SciFinder (R)]
Originele taal-2Engels
TitelZeolites and Related Microporous Materials: State of the Art 1994, Proceedings of the 10th International Zeolite Conference
RedacteurenJ. Weitkamp, H.G. Karge, H. Pfeifer, W. Holderich
Plaats van productieAmsterdam
UitgeverijElsevier
Pagina's373-380
ISBN van geprinte versie0-444-81847-2
DOI's
StatusGepubliceerd - 1994
Evenementconference; IZC: International Zeolite Conference ; 10 (Garmisch-Partenkirchen) : 1994.07.17-22; 1994-07-17; 1994-07-22 -
Duur: 17 jul 199422 jul 1994

Publicatie series

NaamStudies in Surface Science and Catalysis
Volume84
ISSN van geprinte versie0167-2991

Congres

Congresconference; IZC: International Zeolite Conference ; 10 (Garmisch-Partenkirchen) : 1994.07.17-22; 1994-07-17; 1994-07-22
Periode17/07/9422/07/94
AnderIZC: International Zeolite Conference ; 10 (Garmisch-Partenkirchen) : 1994.07.17-22

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