| 초록 |
Yeast-derived carbon (YC) has advantages of the hollow microspherical structure, enriched heteroatoms, good conductivity and environmental friendliness. Moreover, polyaniline is one of promising pseudocapacitive materials as supercapacitor electrodes. In this work, YC has been synthesized by a hydrothermal method followed by the heat treatment, and then used as the conductive substrate to grow polyaniline through in situ polymerization route. The as-prepared YC/polyaniline composites displayed the unique hollow microspherical morphology, uniform polyaniline coating and physicochemical stability. Electrochemical performance of as-prepared hybrids have been analysized using three-electrode system and two-electrode device in 1 M H2SO4 electrolyte. Consequently, the YC/polyaniline electrodes delivered a high specific capacitance, rate capability and stable cycling stability. |
