Ultrahigh stability of high-power nanofibrillar PEDOT supercapacitors

Acharya, Shinjita; Santino, Luciano M.; Lü, Yang; Anandarajah, Hari; Wayne, Aly; D’Arcy, Julio M.

doi:10.1039/c7se00057j

Cited by 19 publications

(28 citation statements)

References 57 publications

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“…The formation of new phases and the doping level of acids due to post-polymerization show the positive effect on conductivity. 52 2.13. Justification of Behavior of PANI NFs as PANI NFs-Ag NCs.…”

Section: Introductionmentioning

confidence: 99%

Performance of Polyaniline Nanofibers (PANI NFs) as PANI NFs-Silver (Ag) Nanocomposites (NCs) for Energy Storage and Antibacterial Applications

et al. 2019

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The conductive property of polyaniline nanofibers (PANI NFs) has attracted great attention due to their higher capacitance, high flexibility, low cost, and ease of synthesis. Herewith, it is demonstrated that at room temperature, the template-free synthesized PANI NFs show the properties of PANI NFs–silver nanocomposites (Ag NCs) without a silver precursor with a new physical insight into energy storage devices and antibacterial applications. The diffraction peak at 2θ = 19.1° using X-ray diffraction analysis indicates the silver nature. UV–vis absorption peaks at 408 and 369 nm indicate the silver absorption (HCl-doped). The spectroscopic studies by FTIR, Raman, and NMR indicate that the PANI NFs behave in a similar manner to PANI NFs-Ag NCs with 48.47 S cm–1 conductivity and 570 F g–1 capacitance. Morphological studies by FESEM (size: 50 nm) and HRTEM reveal that the growth of PANI NFs is one-dimensional and more preferable. It also shows higher bacterial inhibition at lower values of minimum inhibitory concentration and minimum bacterial concentration.

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Section: Introductionmentioning

confidence: 99%

Performance of Polyaniline Nanofibers (PANI NFs) as PANI NFs-Silver (Ag) Nanocomposites (NCs) for Energy Storage and Antibacterial Applications

et al. 2019

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“…In addition, MXenes, discovered in 2011 and known as 2D carbides and the nitrides of transition metals, have been considered a favourable electrode material for supercapacitors due to their hydrophilicity, outstanding electrochemical properties and high electrical conductivity [ 58 , 62 , 63 ]. Furthermore, the most frequently used conductive polymers in energy storage and conversion devices are PPy [ 6 ], PANi [ 7 ], PA [ 8 ], PEDOT [ 3 ], and PTh [ 9 ]. Recently, sustainable biomass-derived carbon nanostructures have shown great potential in energy storage applications.…”

Section: Supercapacitorsmentioning

confidence: 99%

“…Supercapacitors can deliver hundreds to thousands times more power in the same volume, but cannot store the same amount of charge as batteries [ 2 ]. They can be used independently or with fuel cells or batteries where high power is required [ 3 , 4 ]. Due to these characteristics, they are considered a complement to batteries [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…The presence of π-conjugated double bonds in conductive polymers is the backbone responsible for redox reactions with the ability to store and charge a large amount of charge [ 6 ]. The most frequently used conductive polymers in energy storage and conversion devices are polypyrrole (PPy) [ 6 ], polyaniline (PANi) [ 7 ], polyacetylene (PA) [ 8 ], poly(3,4-ethylenedioxythiophene) (PEDOT) [ 3 ], polythiophene (PTh) [ 3 , 6 , 7 , 8 , 9 ]. Conductive polymers are classified into three main types: The first is when two identical p-doped conductive polymer films are used for both electrodes, such as PANi and PANi.…”

Section: Introductionmentioning

confidence: 99%

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Cellulose-Derived Nanostructures as Sustainable Biomass for Supercapacitors: A Review

Kumar

2022

Polymers

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Sustainable biomass has attracted a great attention in developing green renewable energy storage devices (e.g., supercapacitors) with low-cost, flexible and lightweight characteristics. Therefore, cellulose has been considered as a suitable candidate to meet the requirements of sustainable energy storage devices due to their most abundant nature, renewability, hydrophilicity, and biodegradability. Particularly, cellulose-derived nanostructures (CNS) are more promising due to their low-density, high surface area, high aspect ratio, and excellent mechanical properties. Recently, various research activities based on CNS and/or various conductive materials have been performed for supercapacitors. In addition, CNS-derived carbon nanofibers prepared by carbonization have also drawn considerable scientific interest because of their high conductivity and rational electrochemical properties. Therefore, CNS or carbonized-CNS based functional materials provide ample opportunities in structure and design engineering approaches for sustainable energy storage devices. In this review, we first provide the introduction and then discuss the fundamentals and technologies of supercapacitors and utilized materials (including cellulose). Next, the efficacy of CNS or carbonized-CNS based materials is discussed. Further, various types of CNS are described and compared. Then, the efficacy of these CNS or carbonized-CNS based materials in developing sustainable energy storage devices is highlighted. Finally, the conclusion and future perspectives are briefly conferred.

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“…Several studies have been conducted on flexible and transparent supercapacitors, using nanomaterials such as silver nanowire and other metal-oxide nanomaterials [4,5]. Pseudocapacitors, usually based on metal oxides [6][7][8] and conductive polymers [9,10], store energy depending on electron charge transfer via electrosorption, redox reactions and intercalation. However, redox reactions can severely damage the surface of the electrode, inducing poor cycle sustainability in pseudocapacitors.…”

Section: Introductionmentioning

confidence: 99%

Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor

Kim

Hwang

et al. 2021

Energies

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Here, we demonstrate the fabrication of a flexible and transparent micro-supercapacitor (MSC), using colorless polyimide (CPI) via a direct laser writing carbonization (DLWC) process. The focused laser beam directly carbonizes the CPI substrate and generates a porous carbon structure on the surface of the CPI substrate. Fluorine, which is one of the chemical compositions of CPI, can enhance the specific area and the conductivity of the carbon electrode by creating micropores in carbon structures during carbonization. Thus, the fabricated carbonized CPI-based MSC shows enhanced specific capacitance (1.20 mF at 10 mV s−1) and better transmittance (44.9%) compared to the conventional PI-based MSC. Additionally, the fabricated carbonized CPI-based MSC shows excellent cyclic performance with minimal reduction (<~10%) in 3000 cycles and high capacitance retention under mechanical bending test conditions. Due to its high flexibility, transparency, and capacitance, we expect that carbonized CPI-based MSC can be further applied to various flexible and transparent applications.

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Ultrahigh stability of high-power nanofibrillar PEDOT supercapacitors

Abstract: PEDOT nanofibers show unprecedented cycling stability in aqueous supercapacitors, 90% capacitance for 350 000 cycles, and exhibit excellent power and energy density (25 kWkg−1 and 4.3 W h kg−1) at 1 V.

Cited by 19 publications

References 57 publications

Performance of Polyaniline Nanofibers (PANI NFs) as PANI NFs-Silver (Ag) Nanocomposites (NCs) for Energy Storage and Antibacterial Applications

Performance of Polyaniline Nanofibers (PANI NFs) as PANI NFs-Silver (Ag) Nanocomposites (NCs) for Energy Storage and Antibacterial Applications

Cellulose-Derived Nanostructures as Sustainable Biomass for Supercapacitors: A Review

Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor

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