One-step hydrothermal preparation of (NH4)2V3O8/carbon composites and conversion to porous V2O5 nanoparticles as supercapacitor electrode with excellent pseudocapacitive capability

A facile one-step hydrothermal route was successfully developed to synthesize (NH4)2V3O8/carbon core-shell composites using NH4VO3 and glucose as the starting materials for the first time, and then (NH4)2V3O8/carbon composites were converted to porous V2O5 nanoparticles. The electrochemical properties of porous V2O5 nanoparticles are greatly improved using organic electrolyte.