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Open AccessArticle

A Facile Method to Prepare Silver Doped Graphene Combined with Polyaniline for High Performances of Filter Paper Based Flexible Electrode

1
School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
2
School of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an 710072, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1434; https://doi.org/10.3390/nano9101434
Received: 15 September 2019 / Revised: 30 September 2019 / Accepted: 3 October 2019 / Published: 10 October 2019
A flexible filter paper based composite electrode was prepared via the convenient one-step synthesis of silver doped graphene for the first time, followed by in-situ polymerization of aniline monomers. Using L-ascorbic acid for simultaneous reduction of grapheme oxide and silver nitrate, we provided a new and green method to prepare graphene hybrid sheets without toxicity. It was found that the as-fabricated hybrid electrode formed a three-dimensional porous architecture, which not only increased the specific surface area of composite, but also facilitated the ion diffusion of the electrolyte. In addition, according to the tests of electrochemical performances, the flexible hybrid electrode subsequently exhibited exceptional specific capacitance of 437.3 F/g, energy density of 1133.5 W·h/kg and power density of 88.8 kW/kg, respectively. Meanwhile, the as-prepared hybrid demonstrated a good cycling stability with only 10.99% specific capacitance deterioration after 5000 times of cycling. This preparation technology presented here shows great potential for the development and application of wearable and portable energy storage devices, particularly for flexible supercapacitors. Moreover, this study puts forward a general, simple and low-cost route of fabricating a novel flexible electrode on a large scale, eventually for environmental protection. View Full-Text
Keywords: supercapacitor; grapheme; silver; polyaniline; filter paper supercapacitor; grapheme; silver; polyaniline; filter paper
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Jiao, S.; Li, T.; Xiong, C.; Tang, C.; Li, H.; Zhao, T.; Dang, A. A Facile Method to Prepare Silver Doped Graphene Combined with Polyaniline for High Performances of Filter Paper Based Flexible Electrode. Nanomaterials 2019, 9, 1434.

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