Analyzing Oxidation States of Metals: A Comparative Study of ED-RIXS and EXAFS Techniques

Spectrometric techniques based on X-ray absorption and scattering, such as EDIXS (Energy Dispersive Resonant Inelastic X-Ray Scattering) and EXAFS (Extended X-Ray Absorption Fine Structure), are powerful tools for determining the chemical and oxidation states of vanadium in various systems. These techniques can provide information on the local structure, coordination number, bond length and electronic configuration of vanadium atoms. Some examples of the use of these techniques are: the identification of V₃S₄, NiS and FeS as the main impurities in petroleum cokes for anodes used in aluminum production [2]; the investigation of the structure of vanadium oxide catalysts supported on silica and alumina [3]; the study of the semiconducting properties of vanadium phosphate glasses [4]; etc.