Fabrication of 3D ordered needle-like polyaniline@hollow carbon nanofibers composites for flexible supercapacitors

Ni, Xuepeng; Jiang, Yang; Chen, Haoyu; Chen, Huifang; Wu, Qilin; Ju, Anqi

doi:10.1016/j.cclet.2021.01.043

Cited by 24 publications

(4 citation statements)

References 32 publications

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“…Furthermore, in the N1s analysis ( Figure 4 c), the small peak corresponding to -NH- is 398.6 eV. In addition, there are 396.8 eV and 400.0 eV, which are attributed to the characteristic peaks of the two atomic groups =N- and NH + =, respectively [ 35 ]. Figure 4 d showed two low-intensity peaks at 529.7 and 531.0 eV respectively corresponding to C=O and O-H atomic groups on the surface.…”

Section: Resultsmentioning

confidence: 99%

Carbon Nanofibers Based on Potassium Citrate/Polyacrylonitrile for Supercapacitors

Zhang

Guo

et al. 2022

Membranes

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Wearable supercapacitors based on carbon materials have been emerging as an advanced technology for next-generation portable electronic devices with high performance. However, the application of these devices cannot be realized unless suitable flexible power sources are developed. Here, an effective electrospinning method was used to prepare the one-dimensional (1D) and nano-scale carbon fiber membrane based on potassium citrate/polyacrylonitrile (PAN), which exhibited potential applications in supercapacitors. The chemical and physical properties of carbon nanofibers were characterized by X-ray diffraction analysis, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and the Brunnauer–Emmett–Teller method. The fabricated carbon nanofiber membrane illustrates a high specific capacitance of 404 F/g at a current density of 1 A/g. The good electrochemical properties could be attributed to the small diameter and large specific surface area, which promoted a high capacity.

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Section: Resultsmentioning

confidence: 99%

Carbon Nanofibers Based on Potassium Citrate/Polyacrylonitrile for Supercapacitors

Zhang

Guo

et al. 2022

Membranes

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“…[6][7][8][9] Of these methods, electrospun carbonaceous nanofibers (ECNFs) are an important subfamily of nanostructured carbons having several advantageous properties, including good mechanical flexibility, controllable morphology, high yield ratio, and environmental friendliness, [10][11][12] leading to their investigation in recent years as electrode materials for flexible supercapacitors. However, a predominance of micropores, poor conductivity, and disordered microstructures of ECNFs all lead to low specific capacitances and poor rate capabilities, [13,14] which seriously limit their practical application in future flexible supercapacitor devices.Engineering multifunctionality to overcome the limited activities of the commonly used ECNFs has emerged as a hot topic in electrospinning research. Optimizing…”

mentioning

confidence: 99%

Embedding Metal–Organic Frameworks for the Design of Flexible Hybrid Supercapacitors by Electrospinning: Synthesis of Highly Graphitized Carbon Nanofibers Containing Metal Oxide Nanoparticles

Zhu²,

et al. 2022

Small Structures

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Electrospun carbonaceous fibers have emerged as promising electrode materials for application in energy storage devices. However, their relatively poor electrical conductivity (due to their amorphous carbon structures) and low capacitive performance lead to poor prospects for their further application. Herein, a universal synthesis of highly graphitized carbon nanofibers, containing various metal oxide nanoparticles (e.g., Fe2O3, NiO), by the pyrolysis of metal–organic framework (MOF)‐embedded electrospun nanofibers, is reported. The resulting carbon nanofibers exhibit large mesopore volumes, contain large quantities of Faradic metal oxide nanoparticles, and are highly graphitized. The fibers also have excellent mechanical flexibility, provide fast ion transfer characteristics, and a large pseudocapacitance combined with excellent electrical conductivity, leading to large specific capacitances. Consequently, asymmetric flexible hybrid supercapacitors assembled from Fe2O3‐embedded highly graphitized carbon nanofibers (FOCNF) and NiO‐embedded highly graphitized carbon nanofibers (NOCNF) exhibit a high energy density of 43.1 Wh kg−1 at a power density of 412.5 W kg−1 and possess excellent flexibility (capacitance retention of 94.4% at 180° bending and 96.2% at 30° twisting) with superior cycling stability. This strategy provides a new MOF‐based approach for the design and synthesis of multifunctional flexible carbonaceous materials and might lead to their further application in flexible energy storage devices.

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“…Symmetrical SCs designed using HCFs/PANI composites also exhibited outstanding electrochemical performance with high energy/power density and exceptional durability. 97…”

Section: Binary Composites Of Panimentioning

confidence: 99%

Recent progress in polyaniline-based composites as electrode materials for pliable supercapacitors

Shanmuganathan

Raghavan

Ghosh

2023

Phys. Chem. Chem. Phys.

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Fabrication of 3D ordered needle-like polyaniline@hollow carbon nanofibers composites for flexible supercapacitors

Cited by 24 publications

References 32 publications

Carbon Nanofibers Based on Potassium Citrate/Polyacrylonitrile for Supercapacitors

Carbon Nanofibers Based on Potassium Citrate/Polyacrylonitrile for Supercapacitors

Embedding Metal–Organic Frameworks for the Design of Flexible Hybrid Supercapacitors by Electrospinning: Synthesis of Highly Graphitized Carbon Nanofibers Containing Metal Oxide Nanoparticles

Recent progress in polyaniline-based composites as electrode materials for pliable supercapacitors

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