Open AccessEffect of Si(IV) substitution on the stability of microporous ZnAPSO‐44 solid acid catalysts: a combined XAS/XRD study
Author(s) -
Sankar Gopinathan,
Muncaster Gavin,
Gleeson David,
Catlow C. Richard A.,
Thomas John Meurig,
Mosselmans J. Fred W.,
Harvey Ian,
Dent Andrew J.
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049501000127
Subject(s) - microporous material , calcination , x ray absorption spectroscopy , catalysis , thermal stability , materials science , chemical engineering , molecule , solid solution , inorganic chemistry , chemistry , crystallography , organic chemistry , absorption spectroscopy , metallurgy , physics , quantum mechanics , engineering , composite material
The combined XAS/XRD technique has been used to investigate the stability of the microporous structure during calcination process for a series of ZnAPSO‐44 materials. Incorporation of large amounts of Zn is found to produce materials that are unstable upon removal of the structure directing organic template molecule. However, simultaneous incorporation of Si is found to increase the thermal stability of the materials, yielding catalysts that are well suited for acid catalysed reactions.