Open AccessThe architecture of Mg(II) centres in MAPO‐36 solid acid catalysts
Author(s) -
Sankar Gopinathan,
Gleeson David,
Catlow C. Richard A.,
Thomas John Meurig,
Smith Andrew D.
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/s0909049501000139
Subject(s) - calcination , x ray absorption spectroscopy , catalysis , solid acid , solid state , magnesium , chemistry , nuclear chemistry , inorganic chemistry , ion , materials science , absorption spectroscopy , organic chemistry , physics , quantum mechanics
The local structure around Mg 2+ ions of a Magnesium substituted aluminophosphate, with the ATS structure (MgAPO‐36, Mg/P=0.08), in the as‐prepared and calcined state has been investigated by Mg K‐edge XAS spectroscopy. High quality XAS data were collected using the solid‐state fluorescence detector. Mg 2+ is found to replace tetrahedrally co‐ordinated Al 3+ in the as‐prepared state and remained intact even after calcination, thus yielding a highly active, solid acid catalyst.