Synthesis and characterization of new copper-chromium layered double hydroxides pillared with polyoxovanadates

Journal Article · Fri Nov 01 00:00:00 EST 1996 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1006/jssc.1996.0343· OSTI ID:478814

Depege, C; Bigey, L; Forano, C ^[1]

---

1. Universite Blaise Pascal, Aubiere (France); and others

In this study, the authors have focused on the intercalation by ion-exchange of some polyoxovanadate anions from aqueous solution (decavanadate V{sub 10}O{sub 28{sup 6-}}, tetravanadate V{sub 4}O{sub 12}{sup 4-}, and pyrovanadate V{sub 2}O{sub 7}{sup 4-}) into the layers of a copper chromium hydrotalcite-like compound, PXRD, FTIR, TGA, and EXAFS studies have provided information about the specific oxovanadate ions in the interlayers and their orientation. Thermal treatment of these LDHs was also examined. A grafting process of pyrovanadate anions onto the hydroxylated sheets has been demonstrated at room temperature.

• OSTI ID: 478814
• Journal Information: Journal of Solid State Chemistry, Vol. 126, Issue 2; Other Information: PBD: 1 Nov 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
VANADIUM OXIDES
STRUCTURAL CHEMICAL ANALYSIS
COPPER HYDROXIDES
CHROMIUM HYDROXIDES
CHEMICAL PREPARATION
THERMAL GRAVIMETRIC ANALYSIS
X-RAY SPECTROSCOPY
X-RAY DIFFRACTION
ABSORPTION SPECTROSCOPY