Surfactant induced self-assembly to prepare a vanadium nitride/N,S co-doped carbon high-capacitance anode material

The mechanism of the reaction of melamine (C₃H₆N₆) with ammonium metavanadate and the critical role of the surfactant in this reaction were investigated. The results indicate that the complex is obtained via the reaction of C₃H₆N₆ with VO₃- after the elimination of -NH₂, and the surfactant can modulate the microstructure. In addition, a vanadium nitride/N,S co-doped carbon material fabricated from the above complex exhibits a specific capacitance of 422.0 F g^-1 at 0.5 A g^-1. This method provides a new route for the synthesis of vanadium nitride/carbon materials.