Conducting polymer‐based flexible supercapacitor

Shown, Indrajit; Ganguly, Abhijit; Chen, Li‐Chyong; Chen, Kuei‐Hsien

doi:10.1002/ese3.50

Cited by 538 publications

(251 citation statements)

References 216 publications

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“…2e and Fig. 9 The observed low ohmic drop (Fig. Hence, the areal specific capacitance of this electrode is calculated to be as high as 1250 mF cm -2 ( Fig.…”

Section: Supercapacitor Applicationsmentioning

confidence: 83%

“…10 During polymerization, PANI exists in four different oxidation states namely the leucoemeraldine base (fully reduced state), emeraldine salt (protonated conducting state), emeraldine base (de-protonated state) and pernigraniline base (nonconducting form). 9 However, electrochemical technique is more preferred way over chemical counterpart as the rate of polymerization and its structural growth can be controlled poteentiodynamically. Polymerization of aniline can be achieved by both chemical as well as electrochemical techniques.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical synthesis of polyaniline cross-linked NiMoO₄ nanofibre dendrites for energy storage devices

Ramkumar

Minakshi

2016

New J. Chem.

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Electrochemical synthesis of polyaniline deposited on a graphite electrode using ptoluenesulfonic acid has been carried out via potentiodynamic method. The feasibility to store energy in polyaniline has been demonstrated in 1 M Na 2 SO 4 electrolyte using cyclic voltammetry and charge-discharge analyses. The obtained low capacitance (247 mF cm -2 ) for polyaniline limits its practical application. Thereon, as an alternative approach, aniline is polymerized in the presence of novel non-ionic surfactant (Quillaja Saponin) and found a marginal increase in capacitance to 342 mF cm -2 . Adsorption of surfactant on aniline resulted in a profound effect on electrochemical behaviour. To further enhance the capacitance, innovatively, polyaniline is cross-linked with nickel molybdate (NiMoO 4 ) using chitosan as biopolymer. The cross-linked NiMoO 4 showed an improved areal specific capacitance of 1250 mF cm -2 and 85% of its initial capacitance is retained after 2000 cycles. The morphology of the cross-linked NiMoO 4 deduced through field emission scanning and transmission electron microscopes showed the formation of nanofibre like dendrite having porous network. The intra molecular interactions that facilitate the electron transfer path with more active sites for nucleation are attributed to higher capacitance. X-ray photoelectron spectroscopy measurements ascertain the presence of NiMoO 4 in the aniline composite after electropolymerization process. Overall, the role of surfactant exhibited the surface functionality whereas biopolymer tuned the redox reactions of NiMoO 4 electrode.An effective cross-linking strategy for grafting polyaniline with a nanomaterial such as nickel molybdate provides long term cyclability in the fabricated energy storage device.

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“…2e and Fig. 9 The observed low ohmic drop (Fig. Hence, the areal specific capacitance of this electrode is calculated to be as high as 1250 mF cm -2 ( Fig.…”

Section: Supercapacitor Applicationsmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Electrochemical synthesis of polyaniline cross-linked NiMoO₄ nanofibre dendrites for energy storage devices

Ramkumar

Minakshi

2016

New J. Chem.

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“…[28] In addition, the conductive polymers possess the properties of high electrical conductivity, excellent mechanical flexibility, easy solution processability, low cost and good compatibility, which exhibit obvious advantages. [28] In addition, the conductive polymers possess the properties of high electrical conductivity, excellent mechanical flexibility, easy solution processability, low cost and good compatibility, which exhibit obvious advantages.…”

Section: Introductionmentioning

confidence: 99%

Twisted yarns for fiber-shaped supercapacitors based on wetspun PEDOT:PSS fibers from aqueous coagulation

et al. 2016

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+ These authors contributed equally to this work. Abstract Recently, fiber-shaped yarn supercapacitors (YSCs) have attracted extensively attention due to their merits of small volume, high flexibility and potential to be woven in the textiles for future wearable electronics. PEDOT: PSS possesses properties of high-redox capacitance, high conductivity and high intrinsic flexibility, so PEDOT: PSS yarn electrodes are quite promising in the field of YSCs. However, to the best of our knowledge, twisted yarns based on wetspun PEDOT: PSS fibers for fiber-shaped YSCs have not been reported. Herein, we develop a new coagulation bath with CaCl 2 in aqueous solution for preparing meter-long PEDOT: PSS fibers. The PEDOT: PSS fibers with good mechanical properties can be easily woven, sewed, knotted and braided as the YSCs electrode. The PEDOT: PSS fiber-based YSCs show a high areal capacitance of 119 mF cm -2 and areal energy density of 4.13 µWh cm -2 .

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“…[50][51][52] They are of key significance for hybrid electric automobile batteries or for home energy storage in solar panels. Their electrodes are the most important components and determine the performance of supercapacitors to a great extent.…”

Section: Conducting-polymer-based Materials For Supercapacitorsmentioning

confidence: 99%

Conducting‐Polymer‐Based Materials for Electrochemical Energy Conversion and Storage

Wang

Kong

et al. 2017

Advanced Materials

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and poly(3,4-ethylenedioxythiophene) (PEDOT). The highly conjugated polymer chains can be reversibly assigned electrochemical properties by a doping/dedoping process. [9][10][11] By regulating and controlling the level of doping, their conductivities can be tuned in a wide range, from 10 −10 to 10 4 S cm, spanning the entire range from insulators to semiconductors, to conductors. [12,13] Additionally, these conducting polymers retain the advantages of traditional polymers, such as low cost, convenient preparation, good affinity to many other materials, and high flexibility and durability. Recently, great efforts have been made to exploit the applications of conducting polymers as electrocatalysts for fuel cells and as electrode materials for supercapacitors. Considering the rapidly booming efforts undertaken in this cutting-edge research area, it is necessary to highlight the new discoveries and achievements in the past several years. Here, we introduce the latest advances in conducting-polymer-based materials for fuel cells and supercapacitors, and focus on the strategies employed to improve their electrocatalytic and electrochemical performance. Conducting-Polymer-Based Catalysts for Fuel CellsFuel cells are promising green energy-conversion devices that convert chemical energy of various fuels directly into electric energy under electrochemical redox reactions. This technology provides intriguing applications in portable energy sources [14,15] and has attracted increasing attention in recent years. [16][17][18][19] Such energy-conversion systems require highly efficient electrocatalysts to trigger the oxygen reduction reaction (ORR) that occurs at the fuel cell's cathode. Platinum/ carbon (Pt/C) composite is demonstrated to be the most efficient catalyst used for fuel cells. [20][21][22] However, high price, scarcity, poor utilization efficiency, and easy carbon monoxide poisoning greatly limit its commercial applications. [23] Therefore, development of low-cost, stable, and efficient electrocatalysts for ORR is a major challenge in the field of fuel cells. [24][25][26][27][28] Owing to their highly tunable conductivity, good electrocatalytic activity, and satisfactory electrochemical stability, conducting polymers are considered to be promising electrocatalyst materials for the ORR. [29] Initially, conducting-polymer-based electrodes were fabricated through direct casting of neutral To alleviate the current energy crisis and environmental pollution, sustainable and ecofriendly energy conversion and storage systems are urgently needed. Due to their high conductivity, promising catalytic activity, and excellent electrochemical properties, conducting polymers have been attracting intense attention for use in electrochemical energy conversion and storage. Here, the latest advances regarding the utilization of conducting polymers for fuel cells and supercapacitors are introduced. The strategies employed to improve the electrocatalytic and electrochemical performances of conducting-polymerbased materials are prese...

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Conducting polymer‐based flexible supercapacitor

Cited by 538 publications

References 216 publications

Electrochemical synthesis of polyaniline cross-linked NiMoO₄ nanofibre dendrites for energy storage devices

Electrochemical synthesis of polyaniline cross-linked NiMoO₄ nanofibre dendrites for energy storage devices

Twisted yarns for fiber-shaped supercapacitors based on wetspun PEDOT:PSS fibers from aqueous coagulation

Conducting‐Polymer‐Based Materials for Electrochemical Energy Conversion and Storage

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Conducting polymer‐based flexible supercapacitor

Cited by 538 publications

References 216 publications

Electrochemical synthesis of polyaniline cross-linked NiMoO4 nanofibre dendrites for energy storage devices

Electrochemical synthesis of polyaniline cross-linked NiMoO4 nanofibre dendrites for energy storage devices

Twisted yarns for fiber-shaped supercapacitors based on wetspun PEDOT:PSS fibers from aqueous coagulation

Conducting‐Polymer‐Based Materials for Electrochemical Energy Conversion and Storage

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Electrochemical synthesis of polyaniline cross-linked NiMoO₄ nanofibre dendrites for energy storage devices

Electrochemical synthesis of polyaniline cross-linked NiMoO₄ nanofibre dendrites for energy storage devices