Synthesis and capacitive properties of V(S2)2 nanobelts on graphene sheets

V(S-2)(2) nanobelts deposited on graphene sheets were synthesized via a simple method using thioacetamide, ammonium metavanadate, and graphene oxide. The properties of the obtained composites were investigated using powder Xray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The results revealed that graphene oxide not only acted as a raw material but also played the role of a support during V(S-2)(2) crystal growth. Meanwhile, the graphene oxide was simultaneously reduced to graphene during the deposition of the V(S-2)(2) nanobelts. Electrochemical data showed that the obtained V(S-2)(2)/graphene had better capacitive properties and lower resistance than those of V(S-2)(2) alone.