Polypyrrole/carbon nanotube nanocomposite enhanced the electrochemical capacitance of flexible graphene film for supercapacitors

Lu, Xiangjun; Dou, Hui; Yuan, Changzhou; Yang, Sudong; Hao, Liang; Zhang, Fang; Shen, Laifa; Zhang, Luojiang; Zhang, Xiaogang

doi:10.1016/j.jpowsour.2011.08.112

Cited by 189 publications

(95 citation statements)

References 49 publications

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“…105,106 A graphene/PPy nanowire composite film with a porous nanostructure was prepared by multilayer depositon. 105 The supercapacitor based on this composite film displayed symmetric charge-discharge characteristics and a nearly ideal rectangular cyclic voltammogram in the scan rate range of 10-100 mV s À1 .…”

Section: Graphene/pani Compositesmentioning

confidence: 99%

“…In another case, water-dispersible CNT/PPy core-shell NFs were prepared by chemical polymerization of pyrrole in a dispersion of CNTs. 106 These were then used to fabricate a flexible film of graphene/CNT/PPy using flow-directed assembly of graphene sheets in a dispersion of the CNT/PPy composite. The specific capacitance of this three-component composite was measured to be 211 F g À1 at a CV scanning rate of 0.2 A g À1 with an excellent cycling stability (95% retention after 5000 cycles) because the strain of the PPy chains was released by the flexible graphene sheets.…”

Section: Graphene/pani Compositesmentioning

confidence: 99%

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Graphene/polymer composites for energy applications

Sun

Shi

2012

J Polym Sci B Polym Phys

238

120

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Graphene has wide potential applications in energyrelated systems, mainly because of its unique atom-thick twodimensional structure, high electrical or thermal conductivity, optical transparency, great mechanical strength, inherent flexibility, and huge specific surface area. For this purpose, graphene materials are frequently blended with polymers to form composites, especially when fabricating flexible devices. Graphene/polymer composites have been explored as electrodes of supercapacitors or lithium ion batteries, counter electrodes of dye-sensitized solar cells, transparent conducting electrodes and active layers of organic solar cells, catalytic electrodes, and polymer electrolyte membranes of fuel cells. In this review, we summarize the recent advances on the synthesis and applications of graphene/polymer composites for energy applications. The challenges and prospects in this field have also been discussed. V C 2012 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2013, 51, 231-253 KEYWORDS: composites; energy; fuel cell; graphene; lithium ion battery; redox polymers; solar cell; supercapacitor; synthesis INTRODUCTION Energy is one of the most important recent topics of concern to human society. To replace conventional fossil fuels, clean and renewable energies based on sunlight, wind, new chemicals, and biofuels are urgently demanded. Therefore, materials that can directly convert or store renewable energies are being extensively studied. Among them, graphene has recently attracted a great deal of attention because of its unique atom-thick two-dimensional (2D) structure 1,2 and excellent electrical, 2 thermal, 3 optical, and mechanical properties. 4,5 Graphene is a promising material for applications in various energy-related systems such as supercapacitors, 6-9 secondary batteries, 10-14 solar cells, 15-17 and fuel cells. [18][19][20] For this purpose, graphene materials are frequently blended with polymers to form functional composites. [21][22][23] The polymer component can improve the processability and/or flexibility of graphene materials, and also possibly provide them with new functions. To date, various graphene composites with insulating or conducting polymers (CPs) have been prepared through noncovalent 22 or covalent approaches. 24 They have also been applied as electrodes for supercapacitors and lithium ion batteries (LIBs), 25-29 counter electrodes of dye-sensitized solar cells (DSSCs), 15,30,31 and transparent conducting electrodes (TCEs) 32,33 or active layers of organic solar cells, 34 catalytic electrodes, and polymer electrolyte membranes of fuel cells. [35][36][37] This review focuses on summarizing the recent advances in the synthesis of graphene/polymer composites and their energy applications.

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Section: Graphene/pani Compositesmentioning

confidence: 99%

Section: Graphene/pani Compositesmentioning

confidence: 99%

Graphene/polymer composites for energy applications

Sun

Shi

2012

J Polym Sci B Polym Phys

238

120

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“…In this direction, various composites of PPY have been synthesized with various organic, inorganic metal oxides, SWCNT, MWCNT, nanoparticles by chemical or electrochemical route 8 . For instance PPY/ TiO 2 nanocomposite exhibit photocatalytic activity 9 , nanocomposite of polypyrrole with silicon has been reported to show Li storage properties 10 , PPY/CNT nanocomposite as electrode for supercapacitor 11 , nanocomposite of PPY with nanoparticle has been reported to show enhanced thermal stability, dielectric constant and ac-conductivity 12 etc. The aim of this paper is to synthesise a nanocomposite of polypyrrole with nanophotoadduct of photoactive transition metal complex viz.…”

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confidence: 99%

Studying the electrical, thermal, and photocatalytic activity of nanocomposite of polypyrrole with the photoadduct of K3[Fe(CN)6] and diethylenetriamine

2016

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The present work reports the synthesis of nanocomposite of polypyrrole with [Fe(CN) 6 ] and diethylenetriamine (dien) using Osram photo lamp. The successful synthesis of photoadduct was proved by Elemental analysis, UV-Vis and FTIR spectra. Nanocomposite of photoadduct with PPY was then prepared by oxidative chemical polymerization using FeCl 3 as oxidant. The successful synthesis of the nanocomposite was confirmed from FTIR, XRD and SEM. The nanocomposite showed significant increase in thermal stability, dielectric constant and ac-conductivity as compared to pure polypyrrole. The photocatalytic activity of the materials was also studied against the methyl orange (MO) dye under UV-Vis light and nanocomposite showed efficient photocatalytic activity (91 % degradation after 2 hrs) than pure PPY which showed only 24% degradation of dye after 2 hrs. Thus as synthesised nanocomposite can be effectively utilised for the removal of organic dyes.

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“…[107,134] Zhang et al distributed PPy/CNT composites between rGO sheets homogeneously by flow-assembly to prepare unique flexible films. [135] rGO/PPy/CNT hybrid films exhibit good flexibility. In such a layered structure, the coaxial PPy/CNT nanocables can not only enlarge the space between rGO sheets but also provide pseudo-capacitance to enhance the total capacitance of electrodes.…”

Section: Graphene/cnts/conductive Polymer For Flexible Pseudo-capacitorsmentioning

confidence: 99%

Flexible Supercapacitors – Development of Bendable Carbon Architectures

Niu

Liu

Sherrell

et al. 2013

ACS Symposium Series

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As energy storage devices, Supercapacitors (SCs), also known as electrochemical capacitors, possess high power densities, excellent reversibility and long cycle life. SCs could be applied to diverse fields including electric vehicles, pulse power applications and portable devices. Flexible SCs have attracted significant attention for powering recently developed portable, flexible and wearable electronics. During the past several years, a variety of bendable carbon-based electrode architechtures and flexible SC devices with different designs have been successfully prepared. In this review, we will describe recent developments in the preparation of such bendable carbon-based electrode architechtures and the subsequent design of flexible SC devices. Future development and prospects of flexible SCs are also discussed.

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Polypyrrole/carbon nanotube nanocomposite enhanced the electrochemical capacitance of flexible graphene film for supercapacitors

Cited by 189 publications

References 49 publications

Graphene/polymer composites for energy applications

Graphene/polymer composites for energy applications

Studying the electrical, thermal, and photocatalytic activity of nanocomposite of polypyrrole with the photoadduct of K3[Fe(CN)6] and diethylenetriamine

Flexible Supercapacitors – Development of Bendable Carbon Architectures

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