ChemInform Abstract: Effect of Milling of V2O5 on the Local Environment of Vanadium as Studied by Solid-State 51V NMR and Complementary Methods.

✍ Scribed by A. A. Shubin; O. B. Lapina; E. Bosch; J. Spengler; H. Knoezinger

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 30
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199927021

✦ Synopsis

Effect of Milling of V 2 O 5 on the Local Environment of Vanadium as Studied by Solid-State 51 V NMR and Complementary Methods. -Milling of V 2 O 5 in a ball mill increases the surface area from 7 to a maximum of 32 m 2 /g. Simultaneously, XRD line broadening suggests a reduction of the microcrystallites. A color change during milling indicates oxygen loss and Raman spectroscopy provides evidence for the formation of shear structures such as V 6 O 13 . Most of the vanadium atoms in milled V 2 O 5 are in the V 5+ state, the concentrations of V 4+ and V 3+ are small (increase with milling time).