Synthesis of ultra-long single crystalline CuV2O6 nanobelts

Ultra-long single crystalline CuV2O6 nanobelts have been successfully synthesized via a facile homogeneous reaction between peroxovanadic acid and cupric acetate. The reaction parameters, such as reaction time, and with or without H2O2, have profound influences on the crystal structures and morphologies of the resulting products. The time-dependent experiments reveal that the formation of ultra-long CuV2O6 nanobelts is related to the disassembly of urchin-like Cu3(OH)2V2O7·2H2O nanostructures composed of radially aligned nanobelts, and the growth of CuV2O6 along the direction of [010]. Without the addition of H2O2 aqueous solution, wide and short CuV2O6 nanobelts coexist with some irregular particles and microrods in the products.