@inproceedings{b4b995ae607f4c509a42baead45456e9,
title = "Acidic properties of metal substituted aluminophosphates studied by adsorption calorimetry and IR spectroscopy",
abstract = "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)]",
author = "J.J. Janchen and M.J. Haanepen and M.P.J. Peeters and {Wolput, van}, J.H.M.C. and J.P. Wolthuizen and {Hooff, van}, J.H.C.",
year = "1994",
doi = "10.1016/S0167-2991(08)64135-X",
language = "English",
isbn = "0-444-81847-2",
series = "Studies in Surface Science and Catalysis",
publisher = "Elsevier",
pages = "373--380",
editor = "J. Weitkamp and H.G. Karge and H. Pfeifer and W. Holderich",
booktitle = "Zeolites and Related Microporous Materials: State of the Art 1994, Proceedings of the 10th International Zeolite Conference",
address = "Netherlands",
note = "conference; IZC: International Zeolite Conference ; 10 (Garmisch-Partenkirchen) : 1994.07.17-22; 1994-07-17; 1994-07-22 ; Conference date: 17-07-1994 Through 22-07-1994",
}