Synthesis of 3D reduced graphene oxide/unzipped carbon nanotubes/polyaniline composite for high-performance supercapacitors

Huang, Yanping; Zhou, Junjian; Gao, Na; Yin, Zhixiong; Zhou, Haihui; Yang, Xueying; Kuang, Yafei

doi:10.1016/j.electacta.2018.03.071

Cited by 50 publications

(17 citation statements)

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“…It is a surprise that a network of functionalized graphene nanosheets and CNT (fG/CNT) was synthesized by chemical oxidation of KMnO 4 simultaneously with CNT showing after low temperature treatment specific energy of 11.7 Wh/kg. This value of energy density is higher than that for devices using faradaic materials, i.e., MnO 2 [ 51 , 53 ], Fe 3 O 4 catalyst [ 60 ], PANI [ 38 ], PDA [ 33 ], and it is significantly higher than that for two other SCs with EDLC electrodes [ 51 , 61 ]. Moreover, specific capacitance of 202 F/g at 0.5 A/g that was not too high was reported for these single fG/CNT electrodes in three-electrode configuration and the widest voltage window was not used for the electrochemical test.…”

Section: Specific Energy and Power Of Supercapacitors With Electrodes Based On G/rgo-cnt And Their Cycling Stabilitymentioning

confidence: 97%

“…By this method the total surface of freestanding rGO-CNT paper [ 43 ] and fibre electrode [ 42 ] was covered by PANI that resulted in the capacitance of 138 F/g at 0.2 A/g and 193 F/cm 3 at 1 A/cm 3 , respectively (see Table S4 in Supplementary Materials for details). Higher specific capacitance of 359 F/g at 1 A/g was obtained by Huang et al for electrodes prepared by mixing hydrazine-reduced GO, CNT and aniline to obtain a composite with 80 wt.% PANI [ 38 ] and with larger intercalation compared with PANI coating just mentioned above. Then slight surface redox including response from PANI can be observed in CV curves but the corresponding peaks are symmetrical and do not shift with the increasing scan rate (see Figure 14 a).…”

Section: Modified G/rgo-cnt Electrodes With Faradaic Contributionmentioning

confidence: 99%

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Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour

Okhay

Tkach

2021

Nanomaterials

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Thanks to the advanced technologies for energy generation such as solar cells and thermo- or piezo-generators the amount of electricity transformed from light, heat or mechanical pressure sources can be significantly enhanced. However, there is still a demand for effective storage devices to conserve electrical energy which addresses the wide range of large stationary applications from electric vehicles to small portable devices. Among the large variety of energy-storage systems available today, electrochemical energy sources and, in particular, supercapacitors (SC), are rather promising in terms of cost, scaling, power management, life cycle and safety. Therefore, this review surveys recent achievements in the development of SC based on composites of such carbon-derived materials as graphene (G) and reduced graphene oxide (rGO) with carbon nanotubes (CNT). Various factors influencing the specific capacitance are discussed, while specific energy and power as well as cycling stability of SC with G/rGO-CNT composite electrode materials are overviewed.

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Section: Specific Energy and Power Of Supercapacitors With Electrodes Based On G/rgo-cnt And Their Cycling Stabilitymentioning

confidence: 97%

Section: Modified G/rgo-cnt Electrodes With Faradaic Contributionmentioning

confidence: 99%

Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour

Okhay

Tkach

2021

Nanomaterials

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“…It not only increases the interaction force with rGO molecules, but also forms amide bond with the functional groups in rGO, thus reducing the layer spacing and porosity, which is inevitable in graphene-based organic composites. 29,42,43 In this paper, the electrochemical performances of the prepared electrodes were rstly investigated in a conventional three-electrode system by using an alkaline medium (2 M KOH) as the electrolyte. As illustrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors

Kang

Zhang

et al. 2020

RSC Adv.

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“…In recent years, PANI/CNT composites have attracted considerable attention in the field of energy storage [69,70,71,72,73,74,75,76,77,78]. The synthesis mechanism of CNT and PANI composites is based on electrostatic interaction and π-π stacking between the aromatic structure and the graphite surface.…”

Section: Properties and Applications Of Carbon/polyaniline Hybridsmentioning

confidence: 99%

Review on Carbon/Polyaniline Hybrids: Design and Synthesis for Supercapacitor

et al. 2019

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Polyaniline has been widely used in high-performance pseudocapacitors, due to its low cost, easy synthesis, and high theoretical specific capacitance. However, the poor mechanical properties of polyaniline restrict its further development. Compared with polyaniline, functionalized carbon materials have excellent physical and chemical properties, such as porous structures, excellent specific surface area, good conductivity, and accessibility to active sites. However, it should not be neglected that the specific capacity of carbon materials is usually unsatisfactory. There is an effective strategy to combine carbon materials with polyaniline by a hybridization approach to achieve a positive synergistic effect. After that, the energy storage performance of carbon/polyaniline hybridization material has been significantly improved, making it a promising and important electrode material for supercapacitors. To date, significant progress has been made in the synthesis of various carbon/polyaniline binary composite electrode materials. In this review, the corresponding properties and applications of polyaniline and carbon hybrid materials in the energy storage field are briefly reviewed. According to the classification of different types of functionalized carbon materials, this article focuses on the recent progress in carbon/polyaniline hybrid materials, and further analyzes their corresponding properties to provide guidance for the design, synthesis, and component optimization for high-performance supercapacitors.

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Synthesis of 3D reduced graphene oxide/unzipped carbon nanotubes/polyaniline composite for high-performance supercapacitors

Cited by 50 publications

References 50 publications

Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour

Graphene/Reduced Graphene Oxide-Carbon Nanotubes Composite Electrodes: From Capacitive to Battery-Type Behaviour

Diaminopyrene modified reduced graphene oxide as a novel electrode material for excellent performance supercapacitors

Review on Carbon/Polyaniline Hybrids: Design and Synthesis for Supercapacitor

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