Enhanced Electrochemical Performance of Highly Porous Supercapacitor Electrodes Based on Solution Processed Polyaniline Thin Films

Cho, Sunghun; Shin, Kyung‐Jae; Jang, Jyongsik

doi:10.1021/am402702y

Cited by 148 publications

(122 citation statements)

References 45 publications

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“…1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 4 The conducting polymers (CPs), prepared by typical oxidative polymerization method, 1-3 has attracted great attention in vast fields of energy storage/conversion, 4-8 electronic, [9][10][11] and biological [12][13][14][15][16] applications due to their fascinating properties such as unique redox behavior, tunable electrical conductivity, inherent biocompatibility, and high flexibility. [4][5][6][7][8][9][10][11][12][13][14][15][16] Despite a large number of advantages, however, inferior properties of CPs (e.g., low electrochemical stability, weak mechanical strength, etc.) often hinder their practical usage.…”

Section: Briefsmentioning

confidence: 99%

Fabrication of Various Conducting Polymers Using Graphene Oxide as a Chemical Oxidant

et al. 2015

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Recently, using graphene oxide (GO) for "carbocatalysis" has great attraction as a novel application of graphene-based nanomaterials and expected to opens a host of possibilities for chemical synthesis because of the abundance of natural carbon sources, as well as the low density, extensive chemical functionalization, hydrophilicity, low cost, and ease of preparation.Here, we demonstrate that the GO can play a role as a chemical oxidant for various CPs (polythiophene, polyaniline, and polypyrrole), and diverse graphene-CP composites (graphenepolythiophene, graphene-polyaniline, and graphene-polypyrrole) can simply and rapidly be synthesized by using the GO as both graphene precursor and chemical oxidant. The UV-vis analysis confirms that the GO has successfully polymerized the CPs and been transformed to reduced graphene oxide (RGO). The SEM and TEM analyses show that the CPs have successfully been coated on the few-layered graphene sheets. Raman analysis and series of FT-IR analyses have been conducted to survey what functional group in the GO polymerized the monomers, and they reveal that hydroxyl and epoxy groups in the GO polymerized the monomers. Finally, plausible polymerization mechanisms have specifically and deeply proposed based on the IR result, classical radical polymerization mechanisms of the CPs, and widely adopted thermal reduction mechanism of the GO.The conducting polymers (CPs), prepared by typical oxidative polymerization method, 1-3 has attracted great attention in vast fields of energy storage/conversion, 4-8 electronic, 9-11 and biological 12-16 applications due to their fascinating properties such as unique redox behavior, tunable electrical conductivity, inherent biocompatibility, and high flexibility. 4-16 Despite a large number of advantages, however, inferior properties of CPs (e.g., low electrochemical stability, weak mechanical strength, etc.) often hinder their practical usage. 12,17,18 The need to overcome this limitation has led to the growing interest in hybridization of CPs with other additives. 12,17,18 For example, many kinds of nanostructured carbon materials (e.g., carbon nanotube, mesoporous carbon, etc.) have been incorporated with CPs to produce composites with desirable properties (e.g., enhanced thermal stability, increased electrochemical stability, or improved mechanical strength). [17][18][19][20][21][22] In particular, of the various nanostructured carbon additives, graphene has recently drawn significant attention because of its exceptional electrical, thermal, electrochemical, and mechanical properties. 17,18,23 With the burgeoning interest in the graphene additives, indeed, combination of graphene and CP has extensively been studied and the produced graphene-CP composites have shown the superior properties compared with other carbon-CP composites through the remarkable properties of graphene and synergistic effects between CP and graphene. [24][25][26][27][28] Majorly, the graphene-CP composites have been fabricated by following two methods; (i) mixing of preform...

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Section: Briefsmentioning

confidence: 99%

Fabrication of Various Conducting Polymers Using Graphene Oxide as a Chemical Oxidant

et al. 2015

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“…Cho et al also studied the electrochemical performance of PANI thin films. They have also measured the cyclic stability up to 500 cycles [38]. The $-$ interaction and intermolecular interaction among the PANI and CNH resist the changing of regular network structure in the PACN composites and help to improve the cyclic stability of PACN composites.…”

Section: Cycle-life Stability Testmentioning

confidence: 99%

Polyaniline integrated carbon nanohorn: A superior electrode materials for advanced energy storage

Maiti¹,

Khatua²

2014

Express Polym. Lett.

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Abstract. Fiber-like polyaniline (PANI)/carbon nanohorn (CNH) composites (PACN composites) were prepared as electrode materials for supercapacitor by simple method that involves in-situ polymerization of aniline in the presence of CNH in acidic (HCl) medium with noteworthy electrochemical performances. Thus, the prepared PACN composites show high specific capacitance value of ! 834 F/g at 5 mV/s scan rate compared to ! 231 F/g for pure PANI and CNH (! 145 F/g) at same scan rate of 5 mV/s. CNHs are homogeneously dispersed throughout the matrix and coated successfully. Thus, it provides more active sites for nucleation and electron transfer path. In addition, the composites show high electrical conductivity in the order of ! 6.7·10 -2 S·cm -1 which indicates the formation of continuous interconnected conducting network path in the PACN composites. Morphological study of the PACN composites was carried out by high resolution transmission electron microscopy (HRTEM) and field emission scanning electron microscopy (FESEM).

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“…Despite this remarkable performance, the relative high cost of ruthenium for the prep-aration of ruthenium-based electrode materials limits their widespread applications. In this regard, conducting polymers, such as polyaniline and polypyrrole, have attracted great of attention as alternative materials to conventional activated carbons because of their high theoretical capacitances, high electrical conductivity, low cost, and environmental friendliness [9][10][11][12]. Although conducting polymers provide high theoretical capacitance values, conducting polymer-based electrodes suffer from poor cyclic stability due to mechanical degradation during the doping/dedoping process over long periods of time [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Characteristics of Polyoxometalate/Polypyrrole/Carbon Cloth Electrode Synthesized by Electrochemical Deposition Method

Yoon¹,

Choi²

2016

Applied Chemistry for Engineering

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In this report, polyoxometalte (POM)-doped polypyrrole (Ppy) was deposited on surface of three-dimensional carbon cloth (CC) using an electrodeposition method and its pseudocapacitive behavior was investigated using cyclic voltammetry and galvanostatic charge-discharge. The POM-Ppy coating was thin and conformal which can be controlled by electrodeposition time. As-prepared POM-Ppy/CC was characterized using scanning electron microscope and energy-dispersive X-ray spectroscopy. The unique 3D nanocomposite structure of POM-Ppy/CC was capable of delivering excellent charge storage performances: a high areal capacitance (561 mF/cm 2 ), a high rate capability (85%), and a good cycling performance (97% retention).

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Enhanced Electrochemical Performance of Highly Porous Supercapacitor Electrodes Based on Solution Processed Polyaniline Thin Films

Cited by 148 publications

References 45 publications

Fabrication of Various Conducting Polymers Using Graphene Oxide as a Chemical Oxidant

Fabrication of Various Conducting Polymers Using Graphene Oxide as a Chemical Oxidant

Polyaniline integrated carbon nanohorn: A superior electrode materials for advanced energy storage

Electrochemical Characteristics of Polyoxometalate/Polypyrrole/Carbon Cloth Electrode Synthesized by Electrochemical Deposition Method

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