Flexible and self-standing polyimide/lignin-derived carbon nanofibers for high-performance supercapacitor electrode material applications

Park, Gyutae; Jeon, Ha‐Bin; Kim, Soo-Yeon; Gang, Ha‐Eun; Jeong, Young Gyu

doi:10.1016/j.mseb.2021.115530

Cited by 13 publications

(11 citation statements)

References 49 publications

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“…In Figure 1a, whether film or powder, all the five samples show the characteristic peaks of imide rings including 1770, 1722, and 1380 cm −1 , respectively, corresponding to the asymmetric, symmetric stretching vibration peaks of CO bond and the stretching vibration peak of C–N group. [ 37–39 ] The result indicates that the cyclodehydration process from PAA to PI has successfully occurred. The 3D sphere‐like PI crystals are insoluble in DMAc, so the in situ polymerization method under the action of ultrasound irradiation is conducive to producing evenly dispersion.…”

Section: Resultsmentioning

confidence: 98%

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Facile Preparation and Boosted Electrochemical Properties of Carbon/Carbon Composite Electrodes for Supercapacitors

Wang

et al. 2023

Energy Tech

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Herein, a kind of carbon/carbon composite electrode is prepared using polyimide (PI)/3D sphere‐like polyimide composite films as precursors, followed by carbonization. 2,2‐bis(3‐amino‐4‐hydroxyphenyl)hexafluoropropane and 4,4’‐(hexafluoroisopropylidene)diphthalic anhydride are polymerized and thermally imidized to form the matrix, and 3D sphere‐like PI particles synthesized by the solvothermal process are introduced via the in situ polymerization method. The electrochemical behaviors of C/C composites are examined in relation to the loading of the 3D sphere‐like PI crystals and carbonization temperatures. The C/C composite PI/5%3D‐PI‐800 demonstrates a specific capacitance maximum of 322.7 F g−1 at 0.5 A g−1 due to synergistic effects between different types of PIs. The specific capacitance decreases to 214 F g−1 with a retention rate of 66.3% as the current density increases to 10 A g−1. Moreover, the symmetrical supercapacitor (SC) assembled by PI/5%3D‐PI‐800 shows a specific capacitance of 244.4 F g−1 at 0.5 A g−1, with a high energy density of 33.94 Wh kg−1 and a power density of 500 W kg−1. In addition, after 6 months of storage, the button SC is retested and still shows fantastic capacitance retention rate of above 99.5%. Thus, this work proposes a facile method to fabricate the C/C composite electrodes with outstanding electrochemical properties.

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Section: Resultsmentioning

confidence: 98%

“…The micropores and mesopores with multistage sizes are conducive to shortening the path of electron transfer and ion diffusion, reducing the resistance of charge transfer and thus enhancing the double-layer capacitance. [30,38]…”

Section: Nitrogen Adsorption/desorption Testmentioning

confidence: 99%

Facile Preparation and Boosted Electrochemical Properties of Carbon/Carbon Composite Electrodes for Supercapacitors

Wang

et al. 2023

Energy Tech

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“…This work explains the mechanism of heat treatment using PAN due to its 96% share in carbon fiber market; the schematic is shown in Figure 2c. 10 No matter what precursor is used, the purpose of heat treatment is to form a turbostratic, graphitic structure. Stabilization is done at 180−400 °C under an oxidizing atmosphere.…”

Section: Process Of Electrospun Cnfsmentioning

confidence: 99%

Electrospun Carbon Nanofibers and Their Applications in Several Areas

et al. 2023

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Carbon nanofibers (CNFs) have a broad spectrum of applications, including sensor manufacturing, electrochemical catalysis, and energy storage. Among different manufacturing methods, electrospinning, due to its simplicity and efficiency, has emerged as one of the most powerful commercial large-scale production techniques. Numerous researchers have been attracted to improving the performance of CNFs and exploring new potential applications. This paper first discusses the working theory of manufacturing electrospun CNFs. Next, the current efforts in upgrading the properties of CNFs, such as pore architecture, anisotropy, electrochemistry, and hydrophilicity, are discussed. The corresponding applications due to the superior performances of CNFs are subsequently elaborated. Finally, the future development of CNFs is discussed.

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“…Lignocellulosic biomass is mainly composed of cellulose,hemicelluloses, and lignin ( Liu et al, 2021e ; Liu et al, 2021f ; Xu et al, 2020b ; Liu et al, 2021h ; Wang et al, 2021a ). Among them, lignin as a kind of biomass carbon precursor is considered with broad application prospects due to its high carbon yield, large space for molecular structure modification, and abundant industrial sources ( Dai et al, 2019 ; Li et al, 2019b ; Chen et al, 2020b ; Chen et al, 2020c ; Dai et al, 2020 ; Xu et al, 2020a ; Zhou et al, 2021 ; Park et al, 2022 ). In addition, researchers are committed to designing and manufacturing advanced lignin carbon fibers with high specific surface area, controllable porosity, and appropriate pore size using electrostatic spinning technology, and this technique has obvious advantages over other preparation methods in controlling the fiber inner diameter, surface morphology, and orientation degree ( Qu et al, 2021 ; Thongsai et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Lignin-Based/Polypyrrole Carbon Nanofiber Electrode With Enhanced Electrochemical Properties by Electrospun Method

Kim

et al. 2022

Front. Chem.

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Tailoring the structure and properties of lignin is an important step toward electrochemical applications. In this study, lignin/polypyrrole (PPy) composite electrode films with microporous and mesoporous structures were designed effectively by electrostatic spinning, carbonization, and in situ polymerization methods. The lignin can not only reduce the cost of carbon fiber but also increase the specific surface area of composite films due to the removal of carbonyl and phenolic functional groups of lignin during carbonization. Besides, the compact three-dimensional (3D) conductive network structures were constructed with PPy particles densely coated on the lignin nanofibers, which was helpful to improve the conductivity and fast electron transfer during the charging and discharging processes. The synthesized lignin carbon fibers/PPy anode materials had good electrochemical performance in 1 M H2SO4 electrolyte. The results showed that, at a current density of 1 A g−1, the lignin carbon nanofibers/PPy (LCNFs/PPy) had a larger specific capacitance of 213.7 F g−1 than carbon nanofibers (CNFs), lignin carbon nanofibers (LCNFs), and lignin/PPy fiber (LPAN/PPy). In addition, the specific surface area of LCNFs/PPy reached 872.60 m2 g−1 and the average pore size decreased to 2.50 nm after being coated by PPy. Therefore, the independent non-binder and self-supporting conductive film is expected to be a promising electrode material for supercapacitors with high performance.

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Flexible and self-standing polyimide/lignin-derived carbon nanofibers for high-performance supercapacitor electrode material applications

Cited by 13 publications

References 49 publications

Facile Preparation and Boosted Electrochemical Properties of Carbon/Carbon Composite Electrodes for Supercapacitors

Facile Preparation and Boosted Electrochemical Properties of Carbon/Carbon Composite Electrodes for Supercapacitors

Electrospun Carbon Nanofibers and Their Applications in Several Areas

Lignin-Based/Polypyrrole Carbon Nanofiber Electrode With Enhanced Electrochemical Properties by Electrospun Method

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