Renewable supercapacitors based on cellulose/carbon nanotubes/[Bmim] [NTf2] ionic liquid

Noremberg, Bruno S.; Silva, Ricardo M.; Paniz, Oscar Giordani; Alano, José Henrique; Dupont, Jaı̈rton; Carreño, Neftalí Lênin Villarreal

doi:10.1557/mrc.2019.34

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…CV study displayed that the device shows a retention capacitance of 90% at 60 °C. Noremberg et al [ 69 ] utilized 1‐n‐butyl‐3‐methylimidazolium bis(trifluoromethane sulfonyl)imide as an electrolyte in cellulose/MWCNTs‐based SC. The surface area of the as‐prepared material was 74.4 m 2 g −1 , and the system had a specific capacitance of 34.37 F g −1 with a retaining capacitance of 97.9% after 5000 runs.…”

Section: Ionic Liquids As Electrolytes In Carbon‐based Supercapacitor...mentioning

confidence: 99%

Dual Role is Always Better than Single: Ionic Liquid as a Reaction Media and Electrolyte for Carbon‐Based Materials in Supercapacitor Applications

Sheoran

Kaur

Siwal

et al. 2023

Adv Energy and Sustain Res

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The burgeoning energy demand necessitates the demand for alternative sources of energy worldwide. The development and enhancement of energy storage devices are the main focus of researchers for sustainable energy production. Carbon supercapacitors have the potential applicability as a commercial source of power. Carbon‐based materials have been synthesized by utilization of ionic liquids (ILs). ILs exhibit unique properties, making them valuable materials to be utilized as a precursor, template, reaction media, and electrolytes for forming carbon‐based materials and enhancing supercapacitors (SCs) performance. This review article provides detailed information about ILs in the field of SCs. First, different attractive properties are illustrated, and then the role of ILs in producing carbon‐based materials in the SCs field is described. The next part provides detailed information regarding the utilization of ILs as electrolytes in carbon‐based SCs. Further, the implementations of ILs as electrolytes in different carbon‐based materials (such as activated carbon, graphene carbon nanotubes, and carbon nanofibers) in SCs are listed. Lastly, the importance of IL‐based materials from other materials and future prospects are provided to the readers, which helps further improve the sustainable development of SCs.

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Section: Ionic Liquids As Electrolytes In Carbon‐based Supercapacitor...mentioning

confidence: 99%

Dual Role is Always Better than Single: Ionic Liquid as a Reaction Media and Electrolyte for Carbon‐Based Materials in Supercapacitor Applications

Sheoran

Kaur

Siwal

et al. 2023

Adv Energy and Sustain Res

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“…Noremberg et al [86] assembled a supercapacitor based on cellulose, carboxylated CNT and ionic liquid. The conductive paper electrode had a capacitance of 34.37 F g -1 under the high potential window of 0 ~ 2 V. The capacitance retention rate was 97.9% after 5000 charge/discharge cycles.…”

Section: Paper-based Flexible Electrodementioning

confidence: 99%

Progress in Cellulose/Carbon Nanotube Composite Flexible Electrodes for Supercapacitors

Sun¹,

Qi²,

Chen³

et al. 2021

Eng. Sci.

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Nowadays, there is an increasing demand for wearable, portable and foldable small electronic products, and humancomputer interaction interface devices. Therefore, the supercapacitors as the energy storage device were extensively studied owing to their high energy/power density, fast charge-discharge processes, and long cycle life. Wherein the flexible electrode material is the essential component to boost the performance of supercapacitors. Cellulose, as a kind of natural flexible material with low-cost, wide-sourced, renewable, and robust mechanical properties, have been used as flexible substrate or template of electrodes. To enhance conductivity and excellent electrochemical performance of the cellulose-based flexible electrode, the carbon nanotube (CNT) with high-conductivity, good thermal and chemical stability, and unique internal structure was integrated. Thereby, the cellulose/CNT-based flexible electrodes with high energy/power density and long cycle life performance of flexible supercapacitors are prepared. This review mainly focuses on cellulose/CNT, emphatically summarizing the composition, preparation, and mechanism of the cellulose/CNT-based composite flexible electrode for supercapacitors. Additionally, the current challenges and prospects of the cellulose/CNT-based composite flexible electrode are discussed.

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“…[5,6] Synthetic polymer-based solid electrolytes or separators have been widely used in SCs, and their biodegradable alternatives from renewable sources have always been sought after because of environmental and economic concerns. [7,8] The major advantages of polymer electrolytes and separators are that they are flexible, easy to fabricate, free of leakage, nonvolatile, and low flammable. [9] Much attention has been given to the development of high performance SCs by enhancing the ionic conductivity and chemical and electrochemical stability of polymer electrolytes and separators.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable porous polylactic acid film as a separator for supercapacitors

Vargün

Özaltın

Fei

et al. 2020

J of Applied Polymer Sci

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A porous polylactic acid (PLA) film was investigated as a separator for supercapacitors (SCs) and compared with commercial separators, for example, NKK-MPF30AC and Celgard 2400. The porous PLA film was fabricated via a facile phase inversion method, and the cross-sectional scanning electron microscope images of the PLA separator film exhibited highly porous interconnected morphology for ion diffusion. The surface modification of separators was performed by radio frequency (RF) air plasma to improve wettability. The plasma modification enhanced the water uptake and swelling properties of the separators and decreased the water contact angles of PLA and Celgard 2400 films. The mechanical and dielectric properties of separators were also studied. The ionic conductivities of RF-PLA in 1 M H2SO4 and 1 M Na2SO4 were found to be 1.1 x 10 -1 S/cm and 0.6 X 10 -2 S/cm at room temperature, respectively. The electrochemical impedance spectroscopy of the RF-PLA SCs showed the lowest solution resistance and internal resistance.

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Renewable supercapacitors based on cellulose/carbon nanotubes/[Bmim] [NTf2] ionic liquid

Abstract: Abstract

Cited by 7 publications

References 15 publications

Dual Role is Always Better than Single: Ionic Liquid as a Reaction Media and Electrolyte for Carbon‐Based Materials in Supercapacitor Applications

Dual Role is Always Better than Single: Ionic Liquid as a Reaction Media and Electrolyte for Carbon‐Based Materials in Supercapacitor Applications

Progress in Cellulose/Carbon Nanotube Composite Flexible Electrodes for Supercapacitors

Biodegradable porous polylactic acid film as a separator for supercapacitors

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