Temperature-induced diffusion of probe vanadium(IV) ions into the matrix of titanium dioxide as investigated by ESR techniques

Heat treatments of multicomponent oxides are known to induce an interdiffusion of the cations. In the case of V 2 O 5 /TiO 2 (rutile) mixed compounds, vanadium(IV) ions can be included as dopants inside the TiO 2 matrix. This reaction leads formally to a V x Ti 1-x O 2 solid solution