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Study on Direct Synthesis of Energy Efficient Multifunctional Polyaniline–Graphene Oxide Nanocomposite and Its Application in Aqueous Symmetric Supercapacitor Devices

1
National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
2
Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan
3
TU Braunschweig Institute of Energy and Process System Engineering, 38106 Braunschweig, Germany
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(1), 118; https://doi.org/10.3390/nano10010118
Received: 12 December 2019 / Revised: 31 December 2019 / Accepted: 3 January 2020 / Published: 8 January 2020
(This article belongs to the Special Issue Multifunctional Graphene-Based Nanocomposites)
The synthesis of promising nanocomposite materials can always be tricky and depends a lot on the method of synthesis itself. Developing such synthesis routes, which are not only simple but also can effectively catch up the synergy of the compositing material, is definitely a worthy contribution towards nanomaterial science. Carbon-based materials, such as graphene oxide, and conjugative polymers, such as conductive polyaniline, are considered materials of the 21st century. This study involves a simple one pot synthesis route for obtaining a nanocomposite of polyaniline and graphene oxide with synergistic effects. The study was carried out in a systematic way by gradually changing the composition of the ingredients in the reaction bath until the formation of nanocomposite took place at some particular reaction parameters. These nanocomposites were then utilized for the fabrication of electrodes for aqueous symmetric supercapacitor devices utilizing gold or copper as current collectors. The device manifested a good capacitance value of 264 F/g at 1 A/g, magnificent rate performance, and capacitance retention of 84.09% at a high current density (10 A/g) when gold sheet electrodes were used as the current collectors. It also showed a capacitance retention of 79.83% and columbic efficiency of 99.83% after 2000 cycles. View Full-Text
Keywords: PANI–GO nanocomposite; aqueous symmetric supercapacitor devices; specific capacitance PANI–GO nanocomposite; aqueous symmetric supercapacitor devices; specific capacitance
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Gul, H.; Shah, A.-U.-H.A.; Krewer, U.; Bilal, S. Study on Direct Synthesis of Energy Efficient Multifunctional Polyaniline–Graphene Oxide Nanocomposite and Its Application in Aqueous Symmetric Supercapacitor Devices. Nanomaterials 2020, 10, 118.

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