In this work, we present a simple and facile method for the nitrogen (N)- and sulfur (S)- doped porous three-dimensional (3D) spongelike carbon materials via direct pyrolysis of N and S containing polymer N,N′-methylene-bis-acrylamide cross-linked poly­(acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonic acid) at varying temperatures under inert atmosphere. The obtained nitrogen- and sulfur-doped porous carbons (NSPCs) possess 3D hierarchical porous structure and contain a significantly high amount of N and S species. The concurrent incorporation of N and S successfully modified the surface properties of carbon materials and lead to enhanced capacitive performance. The presented NSPC exhibits specific capacitance of 230 F g–1 at a current density of 1 A g–1 and showed excellent cycling stability, depicting a promising material for energy storage devices.

An experimental and computational study of nanocomposite anodes comprising Co3O4 nanoparticles decorated on nitrogen and sulphur co-doped carbon spheres for appliction in LIBs.

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