Abstract
A wide range of vanadium oxides have been obtained via the hydrothermal treatment of aqueous V(V) solutions. They exhibit a large variety of nanostructures ranging from molecular clusters to 1D and 2D layered compounds. Nanotubes are obtained via a self-rolling process while amazing morphologies such as nano-spheres, nano-flowers and even nano-urchins are formed via the self-assembling of nano-particles. This paper provides some correlation between the molecular structure of precursors in the solution and the nanostructure of the solid phases obtained by hydrothermal treatment.
Highlights
The properties of solid state materials mainly depend on their structure and morphology
In this paper we would like to draw some relationships between the structure of molecular precursors in aqueous solutions and the nanostructure of vanadium oxides obtained after hydrothermal treatment
Nanostructured vanadium oxides have been widely studied during the past decade
Summary
The properties of solid state materials mainly depend on their structure and morphology. The structure and properties of these nanostructured vanadium oxides have been widely described but the chemical mechanisms leading to their formation from aqueous solutions remain largely unknown. In this paper we would like to draw some relationships between the structure of molecular precursors in aqueous solutions and the nanostructure of vanadium oxides obtained after hydrothermal treatment. This would show how the aqueous chemistry of V(V). The aqueous chemistry of V(V) has been extensively studied and a large variety of molecular species have been described [16] At room temperature, they mainly depend on vanadium concentration and pH (Figure). Hydrolysis and condensation, occur when vanadium salt is dissolved in water
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