Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes

Yang, Yu; Xi, Yunlong; Li, Junzhi; Wei, Guodong; Klyui, N.I.; Han, Wei

doi:10.1186/s11671-017-2159-9

Cited by 76 publications

(50 citation statements)

References 42 publications

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“…Compared with the specific capacitance of unitary PANI at the current density of 20 A g −1 , the enhancement of specific capacitance of GP2 is as high as 387%. It is noteworthy that such high capacity retention of GP2 is superior to some of recent research results , as shown in Table . These results suggest that the GP2 possesses a higher specific capacitance and an excellent rate performance.…”

Section: Resultscontrasting

confidence: 60%

Preparation of 4‐Methylaniline Reduced Graphene Oxide/Polyaniline Composite by One‐pot Method: The Effect of Aniline Amount on the Microstructure and Electrochemical Performance

et al. 2018

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In this study, reduced graphene oxide (GO)/polyaniline composites (GP) were successfully fabricated through a novel one-pot synthesis route with 4-methylaniline as a reductant for GO followed by in-situ polymerization of aniline. The results of X-ray diffraction and Raman spectroscopy revealed that GO was successfully reduced by 4-methylaniline. Meanwhile, the effect of aniline amount on the microstructure and electrochemical performance of the as-prepared GP was optimized by tuning the feed ratios of aniline to GO. The results demonstrated that the feed ratio of aniline to GO played a very significant role in constructing the nano-structure of GP, and furthermore determined their electrochemical performance. GP displayed a layer-like structure evenly covered by polyaniline (PANI) nanowires with the feed ratio of aniline to GO of 30/1 (m/m). Under this condition, the composite exhibited a maximum specific capacitance of 530.4 F g −1 at a current density of 0.5 A g −1 , remarkably higher than that of unitary PANI (367.9 F g −1 ), and showed an excellent rate performance (411.1 F g −1 at 20 A g −1 ) as well. Moreover, the composite delivered good cycling stability with less than 8% decrease in the specific capacitance after 2000 cycles at a scan rate of 100 mV s −1 , which was a great improvement over the unitary PANI (69.1%). POLYM. COMPOS., 2018.

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Section: Resultscontrasting

confidence: 60%

Preparation of 4‐Methylaniline Reduced Graphene Oxide/Polyaniline Composite by One‐pot Method: The Effect of Aniline Amount on the Microstructure and Electrochemical Performance

et al. 2018

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“…The synergistic effect between double layer capacitance and pseudocapacitance an obvious discharge pattern can be observed at the charge-discharge process, corresponding to starch and PANI [4]. The Cs values can be estimated using the below formula [52]. The Cs of the starch-PANI electrode evaluated by GCD curves were 66.5, 48 and 31.5 F/g at current densities of 2, 1 and 0.5 A/g respectively using GCD.…”

Section: Galvanostatic Charge-discharge (Gcd)mentioning

confidence: 99%

Electrochemical Performance of Starch-Polyaniline Nanocomposites Synthesized By Sonochemical Process Intensification

Pandi¹,

Sonawane²,

Gumfekar³

et al. 2019

Journal of Renewable Materials

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The present study deals with the intensified synthesis of starchpolyaniline (starch-PANI) nanocomposite using an ultrasound-assisted method. Starch is a key component in this nanocomposite, which acts as a backbone of the nucleation of PANI. The Electrochemical property of the nanocomposite arises due to the addition of PANI. This is one of green approach for the synthesis of bio nanocomposite using ultrasound. The crystallinity of the composite is evaluated using the Scherrer Formula. The starch-PANI nanocomposite was characterized by XRD, FT-IR, Raman, XPS and TEM. The composite nanoparticles show spherical morphology. The elemental composition of starch-PANI showed O 1s peak at 546 eV, N 1s peak at 416 eV, C 1s peak at 286 eV and S 1s peak at 176 eV. The electrochemical studies of the starch-PANI electrodes are evaluated by cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS). Starch-PANI electrode has shown the maximum specific capacitance of 499.5 F/g at 5 mV/s scan rate.

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“…In the past decades, the CPs are extensively explored for flexible supercapacitor application due to their reversible faradic redox nature, high charge density and lower cost as compared with the expensive metal oxides ,,,. Among all kinds of CPs, polyaniline,, polypyrrole, and poly(3,4‐ethylenedioxythio phene) have been widely studied as active electrode materials for flexible SCs due to their high flexibility, ease in fabrication and high pseudocapacitance. Unfortunately, the poor cycle stability of CPs greatly restricts its practical utilization .…”

Section: The Composite Materials Of Conductive Polymers Used As Fleximentioning

confidence: 99%

“…Approaches to the fabrication of composite electrodes combining CPs with carbon materials can offer an effective solution to overcome some of the drawbacks of the CPs based pseudocapacitors ,. A number of binary composite materials based on CPs combined with carbon nanotubes, graphene, and carbon cloth, have been demonstrated high stable supercapacitive performance, which is mainly attributed to the enhanced conductivity of the conducting polymer composites by carbon materials integration, and also because of accessibility of carbon nanostructures in various forms.…”

Section: The Composite Materials Of Conductive Polymers Used As Fleximentioning

confidence: 99%

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Conducting Polymer Nanostructures and their Derivatives for Flexible Supercapacitors

Cheng

Meng

Wei

2018

Israel Journal of Chemistry

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This review provides a brief summary of the recent research developments in the fabrication and application of conducting polymer nanostructures and their derivatives as electrodes for flexible supercapacitors (SCs). By controlling the nucleation and growth process of polymerization, conducting polymers (CPs) with different nanostructures can be prepared by employing chemical polymerization, electrochemical polymerization and photo-induced polymerization. These CPs (such as polyaniline and polypyrrole) with special nanostructures possess high capacitance, superior rate capability ascribed to large electrochemical surface, and optimal ion diffusion path in the ordered nanostructures.The composites of nano-structured conducting polymer and some conductive flexible substrates (such as carbon nanotube film and graphene film) are proved to be ideal electrode materials for high performance flexible SCs. Furthermore, high N-containing CPs are very prospective for preparing Ndoped carbon materials used as flexible electrodes for flexible SCs. With respect to the extra pseudo-capacitance induced by N atoms and superior stability derived from the conjugated graphitic structure of carbon materials, the obtained flexible SCs based on N-doped carbon materials could achieve high capacitance, high rate performance, and superior cycling stability. Figure 1. Specific power against specific energy, also called a ragone plot, for various electrical energy storage devices. Reproduced with permission from ref. 4.

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Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes

Cited by 76 publications

References 42 publications

Preparation of 4‐Methylaniline Reduced Graphene Oxide/Polyaniline Composite by One‐pot Method: The Effect of Aniline Amount on the Microstructure and Electrochemical Performance

Preparation of 4‐Methylaniline Reduced Graphene Oxide/Polyaniline Composite by One‐pot Method: The Effect of Aniline Amount on the Microstructure and Electrochemical Performance

Electrochemical Performance of Starch-Polyaniline Nanocomposites Synthesized By Sonochemical Process Intensification

Conducting Polymer Nanostructures and their Derivatives for Flexible Supercapacitors

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