title: Incorporation of Mn, Co and Zn cations into large-pore aluminophosphate molecular sieves MeAPO-50.
abstract: Large-pore metal modified aluminophosphate molecular sieves MeAPO-50 (Me=Co,Zn,Mn) were synthesised by hydrothermal crystallisation using di-n-propylamine as structure directing agent. EXAFS and XRD analysis show that cobalt(II), manganese(II) and zinc(II) are incorporated into the non-phosphorus tetrahedral framework sites of MeAPO-50 on the threefold-axis site, and on a site in a general position in the unit cell. Results of both methods on distribution of the metal over the two sites are compared.
authors.affiliation: Nova Gorica Polytechnic, Slovenia. iztok.arcon@ses-ng.si
authors.forename: I
authors.initials: I
authors.lastname: Arcon
authors.forename: N N
authors.initials: NN
authors.lastname: Tusar
authors.forename: A
authors.initials: A
authors.lastname: Ristić
authors.forename: V
authors.initials: V
authors.lastname: Kaucic
authors.forename: A
authors.initials: A
authors.lastname: Kodre
authors.forename: M
authors.initials: M
authors.lastname: Helliwell