Direct electrosynthesis of poly-o-phenylenediamine bulk materials for supercapacitor application

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Journal Article
Electrochimica Acta, 2013, 91 (28), pp. 144 - 151
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For the first time, poly-o-phenylenediamine (PoPD) bulk material was electrochemically synthesized using an electrochemical method. Sodium dodecyl sulfate (SDS) was added to o-phenylenediamine (oPD) solution and PoPD with different morphologies were obtained. The as-prepared materials were applied as the electrode materials in supercapacitors. The specific capacitance (SC) of the resultant PoPD was determined to be 106.4 F gâ1 in 1 mol Lâ1 KNO3 electrolyte from CV test. The electrochemical stability of PoPD electrode was investigated by charging and discharging the electrode for 1000 times in the potential range of â0.2 to 0.6 V versus SCE at the current density of 500 mA gâ1. The electrode exhibits a good cycling stability, retaining up to 82% of its initial specific capacitance at 1000th cycle. This novel technique enables PoPD non-film material for supercapacitor application.
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