Synthesis of V2O5 micro-architectures via in situ generation of single-crystalline nanoparticles

Rose-like crystalline particles of ammonium vanadium sulfate hydroxide (NH4V3(OH)6(SO4)2) were synthesized by a solvothermal route using dimethyl sulfoxide (DMSO)–water as the solvent. Following a thermal decomposition process, rose-like V2O5 micro-architectures were fabricated via the in situ generated single-crystalline nanoparticles. When used as the cathode material in lithium-ion batteries, the rose-like V2O5 micro-architecture exhibited high initial discharge capacity. Sphere-like precursor was also prepared via selecting suitable carboxylic acid. This facile synthesis method would be used to prepare various vanadium oxides with different morphologies as well as other compounds.

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