Co 9 S 8 nanoparticles anchored on nitrogen and sulfur dual-doped carbon nanosheets as highly efficient bifunctional electrocatalyst for oxygen evolution and reduction reactions

nanoparticles and the N,S-doped carbon nanosheets. Considering the simplicity, low cost and scalability of the approach, the strategy presented here can be extendable to the preparation of other nanoparticles/carbon hybrid nanosheets, which may potentially be applied in the fields of high-performance supercapacitors, lithium-ion batteries, catalysts, sensors, adsorbents and so on.