Hybrid of NiCo2S4 and nitrogen and sulphur-functionalized multiple graphene aerogel for application in supercapacitors and oxygen reduction with significant electrochemical synergy

The paper reported the construction of NiCo2S4/nitrogen and sulphur-functionalized multiple graphene aerogel (NiCo2S4/N,S-MGA). The introduction of nitrogen and sulphur-functionalized multiple graphene aerogel not only increase the structural stability of NiCo2S4, but also improves the electron transfer and the electrolyte transport. Since the hybridization of NiCo2S4 with nitrogen and sulphur-functionalized multiple graphene aerogel achieves a significantly electrochemical synergy, the hybrid electrode exhibits excellent electrochemical performance and may be widely applied in various high-capacitance supercapacitors.