▎ 摘　　要

Graphene/polyaniline hybrid hollow microspheres are prepared via combining layer-by-layer assembly technique with in situ chemical oxidative polymerization after etching the templates for high-performance supercapacitor application. The hollow structure is characterized by transmission electron microscopy indicating that the inner diameter of the hollow microspheres is about 2.0 A mu m. The electrochemical tests show that the specific capacitance of the graphene/polyaniline hybrid hollow microsphere electrode materials can reach about 633 F g(-1) in a 1.0 M H2SO4 electrolyte. It is higher than that of polyaniline hollow microspheres (389 F g(-1)), pure polyaniline particles (152 F g(-1)), and graphene/sodium alginate hollow microspheres (16 F g(-1)). The high specific capacitance might be attributed to the unique hollow structure and the synergistic effect of the hybrid shell. Their unique structure provides an enhanced surface-to-volume ratio and reduced transport lengths for both mass and charge transport. Furthermore, graphene/polyaniline hybrid hollow microsphere electrode materials display good cycle stability with 92 % of its original specific capacitance after 1,000 cycles by continuous cyclic voltammetric scans at 80 mV s(-1).