Fabrication of polypyrrole (PPy)/carbon nanotube (CNT) composite electrode on ceramic fabric for supercapacitor applications

Lee, Hyuck; Kim, Hyeongkeun; Cho, Mi Suk; Choi, Jae‐Boong; Lee, Youngkwan

doi:10.1016/j.electacta.2011.06.113

Cited by 179 publications

(92 citation statements)

References 27 publications

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“…Owing to the random aggregation of CNTs commonly observed in typical solution processing, charges have to cross many boundaries in random CNT networks with low transfer efficiency, resulting in poor electrochemical performance of the CNTs [58][59][60][61][62][63][64][65][66]. Aligned carbon nanotubes, called as carbon nanotube arrays, have excellent electrical conductivity and provide an outstanding charge transfer rate [63].…”

Section: Cnt Arraysmentioning

confidence: 99%

Recent advances in flexible supercapacitors based on carbon nanotubes and graphene

Zhang

2017

Sci. China Mater.

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Section: Cnt Arraysmentioning

confidence: 99%

Recent advances in flexible supercapacitors based on carbon nanotubes and graphene

Zhang

2017

Sci. China Mater.

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“…The main drawback associated with these materials is the poor stability during cycling, owing to structural swelling and mechanical brittleness during doping/de-doping process. [134] CNT can well mitigate the above issue serving as a perfect backbone for a homogenous distribution of polymers. CNTs also improve the charge transfer that enables a high charge/discharge rate.…”

Section: D Cnt Hybrid Electrodesmentioning

confidence: 98%

Carbon Nanomaterials in Different Dimensions for Electrochemical Energy Storage

2016

Advanced Energy Materials

252

109

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In spite of an ongoing advancement, current popular EES systems including Li-ion batteries (LIBs), supercapacitors (SCs), and redox flow cells (RFCs) are limited by severe performance challenges of electrode materials in terms of low energy and power density as well as short durability. To mitigate the issues, carbon nanomaterials could be introduced to these EES systems, taking advantage of their unique geometry, excellent conductivity, large surface area, and intrinsic flexibility. Numerous carbon nanomaterial based EES systems, where carbon nanomaterials are adopted as either conducting additive or active electrode, have been developed and demonstrated appealing energy and power features. With the capability to enhance the structural and electrochemical properties of electrodes, carbon nanomaterials and their derivatives offer a wide range of possibilities to design advanced EES devices that can meet our growing energy and power demands in the future.A number of reviews have been published in the past few years on the application of carbon nanomaterials in EES. [5][6][7][8] However, this area is so active and new works accumulate very quickly. Therefore, it is helpful to update the new designs and outcomes. This progress report will summarize the most exciting recent (from the year 2010 onwards) advances in the application of carbon nanomaterials with different dimensions, i.e., 0D fullerene, 1D CNT, 2D graphene, and 3D assemblies of CNT and graphene, in EES systems, and highlight the new trends in the field. Besides the repetitively reviewed LIBs and SCs, this work will also deal with another important system, the RFC, which has been rejuvenated recently and is becoming increasingly vital for large scale energy storage. The recent EES applications of carbon nanomaterials will be discussed based on their dimensions. Structure and Properties of Various Nanostructured CarbonFullerenes, CNTs, and graphene all present conjugated π electron systems. The unique electronic configuration combined with geometric structure endows them with extraordinary properties, which make them superior to their competitors for specific applications such as EES. 0D FullerenesFullerene normally has a hollow sphere or ellipsoid shape. Specifically, C 60 has a cage-like fused-ring structure (truncated Carbon nanomaterials including fullerenes, carbon nanotubes, graphene, and their assemblies represent a unique type of materials in diverse formats and dimensions. They feature a large surface area, superior conductivity, fast charge transport, and intrinsic stability, which are essentially required for vari ous electrochemical energy storage (EES) systems such as Li-ion batteries, supercapacitors, and redox flow cells. The scaled-up and reliable production and assembly of carbon nanomaterials is a prerequisite for the development of carbon nanomaterial-based EES devices. In this progress report, the preparation of carbon nanostructures and the state-of-the-art applications of carbon nanomaterials with different dimensions in versatile EES...

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“…9,[20][21][22] However, both CNT and PPy are prone to agglomeration in the fabrication process. As a result, the pores in the electrodes are partially inaccessible to the electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Tiron‐doped polypyrrole/MWCNT composite electrodes with high mass loading and enhanced performance for supercapacitors

Shi

Pang

Zhitomirsky

2015

J of Applied Polymer Sci

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In this study, the aromatic sulfonate compound Tiron with high charge to mass ratio is used as an anionic dopant for synthesis of polypyrrole (PPy). The fabricated PPy is investigated for electrochemical supercapacitor (ES) application. Testing results show that Tiron allows reduced PPy agglomeration, smaller particle size and improved charge storage properties of PPy. High capacitance and improved capacitive retention at high scan rates are achieved by the fabrication of PPy/multiwalled carbon nanotube (MWCNT) composite electrode using safranin (SAF) as a co-dispersant. The Tiron-doped PPy electrode shows the highest capacitance of 7.8 F cm 22 with a mass of 27 mg cm 22 . The Tiron-doped PPy/MWCNT composite electrode shows good capacitance retention with a capacitance of 1.0 F cm 22 at the scan rate of 100 mV s 21 . Symmetric supercapacitor cells are fabricated using PPy based active materials. An energy density of 0.36 mWh cm 22 is achieved. The energy/power density and capacitance retention of the Tirondoped PPy/MWCNT ES is significantly improved in comparison with PPy-based ES, prepared without Tiron or MWCNT. The Tirondoped PPy/MWCNT symmetric supercapacitor presents good cycling performance with 91.4% capacitance retention after 1000 charge-discharge cycles. The PPy/MWCNT composites, prepared using Tiron and SAF co-dispersant, are promising electrodes for ES.

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Fabrication of polypyrrole (PPy)/carbon nanotube (CNT) composite electrode on ceramic fabric for supercapacitor applications

Cited by 179 publications

References 27 publications

Recent advances in flexible supercapacitors based on carbon nanotubes and graphene

Recent advances in flexible supercapacitors based on carbon nanotubes and graphene

Carbon Nanomaterials in Different Dimensions for Electrochemical Energy Storage

Fabrication of Tiron‐doped polypyrrole/MWCNT composite electrodes with high mass loading and enhanced performance for supercapacitors

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