Antimony-121 Mossbauer Spectroscopy Study of Vanadium Antimonate Prepared by Mechanical Milling

摘要

Vanadium antimonate of composition VSbO4, and which has been used industrially as an oxidation catalyst for many years, has been made by mechanical milling methods. The material has a significantly smaller particle size, ca. 23nm, compared with vanadium antimonate prepared by conventional calcination methods. Antimony-121 M?ssbauer spectroscopy shows that, despite the high surface area, the antimony in vanadium antimonate prepared by milling methods is predominantly present as Sb5+.