Effect of Nafion on the preparation and capacitance performance of polyaniline

Huang, Youguo; Zhong, Xia; HUANG, Han-Xing; Li, Qingyu; Wang, Zhihong; Feng, Qipeng; Wang, Hongqiang

doi:10.1016/j.ijhydene.2014.06.013

Cited by 13 publications

(12 citation statements)

References 23 publications

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“…The PANI/Nafion and PEDOT/Nafion composites was reported to have conductivities several orders of magnitude higher with values than this study at 0.010 S cm −1 and 3 S cm −1 , respectively (Hsu, 1991;Simotwo and Kalra, 2016;Hofmann et al, 2020). The lower than reported conductivity measurements found in this study may suggest that the interfacial layers were not conductive but instead merely acts as a pseudocapacitive layer (Kim et al, 2010;Huang et al, 2014).…”

Section: Sheet Resistance and Conductivity Of The Fabricated Eapcontrasting

confidence: 73%

Template-Assisted Self-Assembly of Conductive Polymer Electrodes for Ionic Electroactive Polymers

Huet²,

Naguib

2020

Front. Bioeng. Biotechnol.

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Ionic electroactive polymers (ionic EAPs) can greatly aid in biomedical applications where micro-sized actuators are required for delicate procedures. Since these types of actuators generally require platinum or gold metallic electrodes, they tend to be expensive and susceptible to delamination. Previous research has solved this problem by replacing the metallic electrodes with conductive polymers (CP) and forming an interpenetrating polymer network (IPN) between the conductive polymer (CP) and the solid polymer electrolyte (SPE). Since these actuators contain toxic ionic liquids, they are unsuitable for biological applications. In this study, we present a novel and facile method of fabricating a biocompatible and ionic liquid-free actuator that uses semi-IPN to hold the CP and Nafion-based SPE layers together. Surface activated fabrication treatment (SAFT) is applied to the precursor-Nafion membrane in order to convert the sulfonyl fluoride groups on the surface to sulfonate. Through template-assisted self-assembly, the CP electrodes from either polyaniline (PANI) or poly(3,4-ethylenedioxythiophene) (PEDOT) interlock with the surface treated precursor-Nafion membrane so that no delamination can occur. The electrodes growth pattern, interfacial layer's thickness, and shape can be controlled by adjusting the SAFT concentration and duration.

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Section: Sheet Resistance and Conductivity Of The Fabricated Eapcontrasting

confidence: 73%

Template-Assisted Self-Assembly of Conductive Polymer Electrodes for Ionic Electroactive Polymers

Huet²,

Naguib

2020

Front. Bioeng. Biotechnol.

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“…The earliest PANI/Nafion composites were prepared by Orata et al., [21] and the composites showed good electrochemical performance in acidic solution. The specific capacitance of Nafion‐doped PANI is 385.3 F/g at 0.1 A/g, which is higher than that of undoped PANI (235.8 F/g at 0.1 A/g) [19] . Song et al.…”

Section: Introductionmentioning

confidence: 98%

“…Among large anions, Nafion is a frequently-used doping agent and polymer electrolyte, where Nafion-doped PANI has been shown to exhibit high specific capacitance and good stability. [19,20] The earliest PANI/Nafion composites were prepared by Orata et al, [21] and the composites showed good electrochemical performance in acidic solution. The specific capacitance of Nafion-doped PANI is 385.3 F/g at 0.1 A/g, which is higher than that of undoped PANI (235.8 F/g at 0.1 A/g).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Specific Capacitance and Stability of Polyaniline by Nafion Doping

Xia

et al. 2022

ChemElectroChem

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Polyaniline (PANI) is a promising electrode material for supercapacitors, but its reported specific capacitance is much lower than its theoretical capacitance. This is because the PANI molecular chains are tightly packed, and the electrolyte is left with a difficult path to penetrate into the interior regions of PANI. Large anions can be doped into PANI and expand the distance between adjacent PANI molecular chains, thereby increasing the utilization of PANI. In this work, Nafion-doped PANI was synthesized by in situ chemical polymerization in aniline monomer and Nafion solution and the Nafion content was tuned to improve the overall performance. The specific capacitance of Nafion-doped PANI with an optimized Nafion content (4.76 wt %) reached 603.9 and 378.4 F/g at 1 and 50 mV/s), which are both higher than that of PANI (580.0 and 347.7 F/g at 1 and 50 mV/s). The capacitance retention of Nafion (16.67 wt %)-doped PANI was 64.89 % after 1000 cycles, which is better than that of PANI alone (20.25 %). This work provides a facile approach to increasing the utilization of PANI as an electrode material for supercapacitors.[a] X.

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“…Nafion was used for the electrodeposition of PPy and was doped into PPy 27 . Our research group applied Nafion as a dopant to improve the electrochemical properties of PANI 28 . As far as we know, there are few reports about the comparison between Nafion and common surfactants (e.g., sodium dodecyl benzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS)) [29][30][31][32] used for preparing PANI so far.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Polyaniline Doped with Different Sulfonic Acids for Supercapacitor

LIN¹,

ZHONG²,

HUANG³

et al. 2016

Acta Physico-Chimica Sinica

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Polyaniline (PANI) nanomaterials doped with three different sulfonic acid surfactants (perfluorinated sulfonic acid ion exchange resin (Nafion), sodium dodecyl sulfate (SDS), and sodium dodecyl benzene sulfonate (SDBS)) were prepared using an emulsion polymerization method with manganese dioxide (MnO2) as the oxidant. The structure and morphology of the products were studied by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). Symmetric redox supercapacitor was assembled with doped PANI as the active electrode material. The electrochemical performances of the materials were evaluated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge tests. These results suggest that the introduction of surfactant is beneficial for the formation of a fiber structure and increases the dispersion of PANI. A PANI-Nafion network with distributed porosity and average diameters of 30-40 nm is obtained. The specific capacitances of PANI-Nafion, PANI-SDS, and PANI-SDBS electrodes at 0.1 A•g -1 are 385.3, 359.7, and 401.6 F•g -1 , respectively. Among these electrodes PANI-Nafion delivers the best cycle performance, maintaining 70.7% of its initial capacitance after 1000 cycles.

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Effect of Nafion on the preparation and capacitance performance of polyaniline

Cited by 13 publications

References 23 publications

Template-Assisted Self-Assembly of Conductive Polymer Electrodes for Ionic Electroactive Polymers

Template-Assisted Self-Assembly of Conductive Polymer Electrodes for Ionic Electroactive Polymers

Enhanced Specific Capacitance and Stability of Polyaniline by Nafion Doping

Preparation and Application of Polyaniline Doped with Different Sulfonic Acids for Supercapacitor

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