Hydrothermal-template synthesis and electrochemical properties of Co₃O₄/nitrogen-doped hemisphere-porous graphene composites with 3D heterogeneous structure.

ABSTRACT: Despite the high capacity of Co₃O₄ employed in lithium-ion battery anodes, the reduced conductivity and grievous volume change of Co₃O₄ during long cycling of insertion/extraction of lithium-ions remain a challenge. Herein, an optimized nanocomposite, Co₃O₄/nitrogen-doped hemisphere-porous graphene composite (Co₃O₄/N-HPGC), is synthesized by a facile hydrothermal-template approach with polystyrene (PS) microspheres as a template. The characterization results demonstrate that Co₃O₄ nanoparticles are densely anchored onto graphene layers, nitrogen elements are successfully introduced by carbamide and the nanocomposites maintain the hemispherical porous structure. As an anode material

SUBMITTER: Fan H 

PROVIDER: S-EPMC9057043 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature