Open AccessXAS structural and electronic investigation of a new type of catalyst: {AlGaPON}
Author(s) -
Delsarte S.,
Serin V.,
Flank A.M.,
Villian F.,
Grange P.
Publication year - 1999
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/s0909049598015842
Subject(s) - x ray absorption spectroscopy , catalysis , electronic structure , type (biology) , materials science , chemistry , nanotechnology , computational chemistry , physics , absorption spectroscopy , optics , geology , organic chemistry , paleontology
Substitution of oxygen by nitrogen in galloaluminophosphate oxides leads to compounds, with properties and applications improved as compared to the oxide. The structural and electronic changes induced by the anionic substitution of oxygen by nitrogen on those amorphous compounds have been studied by XAS. The investigation of the EXAFS and XANES data have allowed us to highlight some structural changes; in particular the existence of mixed tetrahedra XOxNy (x being P, Al or Ga) have been demonstrated. Such a study is helpful in understanding the variations in the surface acido-basic properties of these compounds