Journal of Industrial and Engineering Chemistry, Vol.45, 223-228, January, 2017
Fallen-leaf-derived microporous pyropolymers for supercapacitors
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In this study, microporous pyropolymers (GL-AMPs), a carbon-based material, were fabricated from ginkgo leaves by simple pyrolysis with KOH, followed by acid treatment. The GL-AMPs were mainly composed of aromatic hexagonal carbon layers, which were not well stacked, and contained many redox-active heteroatoms such as oxygen and nitrogen. In addition, the GL-AMPs had a high specific surface area of ~1348.4 m2 g-1 with numerous ultramicropores (<0.7 nm). These unique material characteristics led to a significantly high specific capacitance of ~731 Fg-1, high rate capabilities, and stable cycling performance over 1000 cycles in a redox-mediated aqueous electrolyte.
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