The chemical states and coordination geometries of Ga species in Ga/H[Si,Al]-beta (prepared by impregnation) and [Si,Ga]-beta (prepared by hydrothermal synthesis) before and after in situ redox treatments were determined by Ga Kedge X-ray absorption spectroscopy, and confirmed by density functional theory calculation. ? 2001 Elsevier Science B.V. All rights reserved.
Relation:
Microporous and Mesoporous Materials Volume 47, Issue 2-3, October 2001, Pages 147-156