A Simple and General Method for the Synthesis of Multicomponent Na2V6O16·3H2O Single-Crystal Nanobelts

Abstract

Multicomponent Na₂V₆O₁₆·3H₂O (barnesite) single-crystalline nanobelts were synthesized by a direct reaction−crystallization growth of bulk V₂O₅ and NaF powders under hydrothermal treatment without using any templates or catalysts. This new strategy could be extended to prepare other one-dimensional multicomponent nanomaterials including ammonium, alkali-metal or alkali-earth metal vanadium oxide bronzes and other transition metal oxyfluorides. This is an efficient and mild solution method with clear advantages over the traditional high-temperature approach for the large-scale production of 1D multicomponent nanomaterials. The applicability of this approach toward the preparation of other inorganic systems, such as tungstates and molybdates, will be explored.