The very first results of isobutane dehydrogenation over metal-supported mixed metallophosphate oxynitrides (AlMPON)-P-III (M-III = Ga, Cr) are presented. Catalytic tests show that the substitution of oxygen by nitrogen in the anionic network involves the appearance of new and more active sites. The substitution of a part of aluminium by gallium in oxynitride compounds increases significantly the activity while chromium does not modify to a great extent the conversion of isobutane. (C) 1997 Elsevier Science Limited.
Gueguen, E ; Delsarte, Stéphanie ; Peltier, V ; Conanec, R. ; Marchand, R. ; et. al. Isobutane dehydrogenation on various platinum supported mixed metallophosphate oxynitride catalysts MM ' PON (M = Al, M ' = Ga,Cr).International Symposium on Nitrides (JENI 10) (RENNES(France), May 29-31, 1996). In: Journal of the European Ceramic Society, Vol. 17, no. 15-16, p. 2007-2010 (1997)