Abstract
Poly(3,4)-ethylenedioxythiophene/graphene oxide/iron oxide (PEDOT/GO/Fe2O3) ternary composite was synthesized using a simple one-step electropolymerization. The electrochemical studies showed that the specific capacitance of PEDOT/GO/Fe2O3 composite was three times higher (221 F g− 1) than the binary composite of PEDOT/GO which was 73 F g− 1 at 25 mV s− 1. The upsurge performance was believed to be contributed from anchoring particles of Fe2O3 on the wrinkly PEDOT/GO that acted as a spacer in order to maximize the utilization of the electroactive materials for electrochemical reaction. Furthermore, the PEDOT/GO/Fe2O3 composite was also able to attain a specific power of 8 Wh kg− 1 at a specific power of 493 W kg− 1 at 1 A g− 1 and exhibited excellent long-term stability performance even after 1000 cycles owing to the high mechanical strength provided by GO. These performances make PEDOT/GO/Fe2O3 composite as a promising electrode material for supercapacitor.
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We would like to acknowledge the Ministry of Education, Malaysia for the financial support through Fundamental Research Grant Scheme (01-02-13-1388FR).
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Azman, N.H.N., Mamat, M.S., Lim, H.N. et al. High-performance symmetrical supercapacitor based on poly(3,4)-ethylenedioxythiophene/graphene oxide/iron oxide ternary composite. J Mater Sci: Mater Electron 29, 6916–6923 (2018). https://doi.org/10.1007/s10854-018-8678-z
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DOI: https://doi.org/10.1007/s10854-018-8678-z