Abstract
V2 − yTi y O5 − δ · nH2O (0 < y < 1.33, layered structure) and Ti1 − yV y O2 + δ · nH2O (0 < y < 0.25, anatase structure) solid solutions are synthesized by a sol-gel process. ESR spectra are used to assess the state of tetravalent vanadium in the solid solutions before and after calcination at 350°C and after intercalation with K+. Six types of ESR signals arising from paramagnetic ions in different environments are identified. Computer simulation is used to evaluate the ESR parameters of the materials studied.
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