Formation of vanadium-containing nanostructures on the surface of protonated forms of layered perovskite-like titanates K2La2Ti3O10 and NaLaTiO4

Reactions of layered perovskite-like oxides K2La2Ti3O10, NaLaTiO4 and corresponding protonated oxides H2La2Ti3O10, HLaTiO4 with vanadyl sulfate aqueous solution have been studied. It was revealed that the exchange reaction of interlayer alkali cations in K2La2Ti3O10 and NaLaTiO4 by with vanadyl cations, which was reported in the literature previously, does not proceed. The formation of the corresponding protonated forms and vanadium-containing particles is found to occur instead. In the case of protonated forms H2La2Ti3O10, HLaTiO4 vanadium-containing nanostructures are formed on the surface.