Poly(azomethine ether)‐derived carbon nanofibers for self‐standing and binder‐free supercapacitor electrode material applications

Choi, Young Chul; Kim, Min Su; Ryu, Kyoung Moon; Lee, Sang Hoon; Jeong, Young Gyu

doi:10.1002/pat.5015

Cited by 8 publications

(4 citation statements)

References 41 publications

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“…Electrospinning, followed by subsequent carbonization, is paramount in generating continuous carbon nanofibers (CNFs) of well-defined micro/nanostructures. − By leveraging electrostatic forces within an electric field, this technique facilitates the controlled deposition of polymer solutions or melts, yielding one-dimensional (1D) nonwoven networks of fibers possessing diameters that extend into the submicrometer to nanoscale regime. A diverse array of polymeric precursors, including polyacrylonitrile (PAN), − poly(acrylonitrile- co -vinylimidazole) (P(AN- co -VIM)), polyimide (PI), , poly(azomethine ether) (PAME), polybenzimidazole (PBI), and poly(vinyl chloride) (PVC), have been harnessed to fabricate CNF-based electrode materials. , Out of these, PAN exhibits remarkable specific surface areas and solvent resistance, making it a prime substrate choice, yet its limited electrical conductivity hampers its electrochemical utility . This drawback is effectively countered by incorporating conductive materials through doping, and polyaniline (PANI) emerges as a compelling collaborator.…”

Section: Introductionmentioning

confidence: 99%

Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Sharma,

Patel,

Bariya

et al. 2024

ACS Appl. Electron. Mater.

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nanofibers stand out as a promising candidate for energy storage applications, particularly in the domain of supercapacitors. Their inherent advantages, including a high surface area, enhanced charge transport capabilities, and improved electrochemical performance, make them an intriguing focus of investigation. In this study, we present a thorough exploration of the synthesis, characterization, and application of PbS nanoparticles incorporated within the electrospun matrix of a polyacrylonitrile−polyaniline (PAN−PANI) blend. The subsequent carbonization process at 700 °C yields carbon nanofibers (CNFs) with tailored structural and electrochemical attributes. The resulting carbonized PbS/PAN−PANI nanofibers (NFs) exhibit exceptional electrochemical properties, including high specific capacitance, specific energy, and specific power, making them promising candidates for supercapacitor applications. Notably, the application of these CNFs in a two-electrode symmetrical supercapacitor device yielded a specific capacitance of 145.6 F g −1 , as determined from galvanostatic charge−discharge (GCD) measurements at a current density of 0.5 A g −1 in a 6 M KOH electrolyte. Furthermore, this device demonstrated remarkable capacitive retention, maintaining 92.45% of its initial capacitance after 10 000 charge−discharge cycles at 1 A g −1 . These outcomes not only affirm the robustness of the fabrication and optimization methodologies but also accentuate the potential of PbS/PAN−PANI CNFs as electrodes for high-performance supercapacitor systems, particularly highlighting their outstanding pseudocapacitive behavior and stability in alkaline electrolytes.

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Section: Introductionmentioning

confidence: 99%

Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Sharma,

Patel,

Bariya

et al. 2024

ACS Appl. Electron. Mater.

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“…22−30 Electrospinning is a simple method to produce a 2-dimensional nonwoven web of fibers with submicron-or nanoscale diameters by spraying polymer solutions or melts in an electric field. Accordingly, a variety of polymeric materials, such as polyacrylonitrile (PAN), 31−37 poly(acrylonitrile-covinyl imidazole) (P(AN-co-VIM)), 38 polyimide (PI), 27,39 poly(azomethine ether) (PAME), 30 polybenzimidazole (PBI), 40 poly(vinyl chloride) (PVC), 41 etc. have thus been adopted as precursors of binder-free and self-supporting CNFbased electrode materials.…”

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Electrospinning followed by carbonization is considered as a facile, cost-effective, and scalable process to fabricate continuous carbon nanofibers (CNFs) with designed microstructures. − Electrospinning is a simple method to produce a 2-dimensional nonwoven web of fibers with submicron- or nanoscale diameters by spraying polymer solutions or melts in an electric field. Accordingly, a variety of polymeric materials, such as polyacrylonitrile (PAN), − poly(acrylonitrile- co -vinyl imidazole) (P(AN- co -VIM)), polyimide (PI), , poly(azomethine ether) (PAME), polybenzimidazole (PBI), poly(vinyl chloride) (PVC), etc. have thus been adopted as precursors of binder-free and self-supporting CNF-based electrode materials. , Recently, we have synthesized wholly aromatic poly(ether amide) (PEA) homopolymers and copolymers, which is conjectured to be a potential polymeric precursor for carbon materials due to their high heat resistance and high carbon residues of 64% above 800 °C under a nitrogen atmosphere .…”

Section: Introductionmentioning

confidence: 99%

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Poly(Ether Amide)-Derived, Nitrogen Self-Doped, and Interfused Carbon Nanofibers as Free-Standing Supercapacitor Electrode Materials

Kwon

Park

Lee

et al. 2021

ACS Appl. Energy Mater.

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For free-standing and self-doped electrode materials of energy storage devices, in this study, we investigate the microstructures and electrochemical properties of aromatic poly(ether amide) (PEA)-derived carbon nanofibers (CNFs), which are manufactured by electrospinning mixed solutions of PEA and poly(vinyl pyrrolidone) (PVP) at three different compositions and carbonization of the as-spun nanofibers at 1000 °C. The scanning electron microscopy, energy dispersive spectroscopy, Raman spectroscopy, and elemental analyses reveal that PEA-derived CNFs have a unique interfused network structure with nitrogen self-doped and quasi-ordered graphitic features. Accordingly, a high apparent electrical conductivity of 3.72−7.79 S/cm is attained for the CNFs. The cyclic voltammetry and galvanostatic charge−discharge measurements confirm that PEA-derived CNFs have excellent electrochemical properties in terms of a specific capacitance of ∼249.0 F/g at 1.0 A/g, power density of 10,000−1,000 W/kg, energy density of 30.1−69.1 Wh/kg, capacitance retention of ∼79%, and Coulombic efficiency of ∼92% after 3000 cycle tests. These results indicate that PEA-derived CNFs can be used as highly stable, self-supporting, and doping-free electrode materials for high-performance energy storage devices.

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Hybrid Carbon Nanofibers Derived from MXene Nanosheets and Aromatic Poly(ether amide) for Self‐Standing Electrochemical Energy Storage Materials

Kwon

Lee

Hwang

et al. 2022

Macro Materials & Eng

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The microstructure, electrical and electrochemical properties of MXene/aromatic poly(ether amide) (PEA)‐derived hybrid carbon nanofibers (HCNFs) as high‐performance free‐standing supercapacitor electrode materials are reported. For this purpose, a series of HCNFs are fabricated by sequential methods of electrospinning of PEA solutions, dip‐coating (1–10 cycles) of as‐spun PEA nanofibers into MXene aqueous dispersion, and heat‐treatment of MXene‐coated PEA nanofibers for carbonization. The structural analyses of HCNFs reveal that MXene nanosheets are uniformly deposited on PEA‐derived and nitrogen self‐doped CNFs and that they are accumulated with increasing the number of dip‐coating cycles. Accordingly, the electrical conductivity increases from 3.94 S cm−1 for PEA‐derived neat CNF to 15.74 S cm−1 for HCNF10 (10 dip‐coating cycles) due to the increase in the content of electrically conductive MXene nanosheets. On the other hand, the electrochemical performance is measured to be the highest in HCNF7 (7 dip‐coating cycles) owing to a trade‐off effect of ion barrier function and high electrical conductivity of MXene nanosheets to porous CNF webs. For a symmetric supercapacitor setup of two self‐standing HCNF7 electrodes, outstanding electrochemical properties of specific capacitance of 66.7–179.3 F g−1, power density of 1000–10 000 W kg−1, and energy density of 52.7–91.2 Wh kg−1 are attained at current densities of 1–10 A g−1.

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Poly(azomethine ether)‐derived carbon nanofibers for self‐standing and binder‐free supercapacitor electrode material applications

Cited by 8 publications

References 41 publications

Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Poly(Ether Amide)-Derived, Nitrogen Self-Doped, and Interfused Carbon Nanofibers as Free-Standing Supercapacitor Electrode Materials

Hybrid Carbon Nanofibers Derived from MXene Nanosheets and Aromatic Poly(ether amide) for Self‐Standing Electrochemical Energy Storage Materials

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