Thermal desorption of oxygen from near-stoichiometric cationic vanadium oxide clusters

- Thermal desorption of O2 from VnOm+ was observed by temperature-programmed-desorption.
- Activation energy of oxygen desorption was estimated with the Arrhenius equation.
- With respect to the number of V atoms, even-odd alternation of Ea was observed.
- Even-odd alternation was interpreted in terms of oxidation states of vanadium atoms.