Biomass-based flexible nanoscale carbon fibers: effects of chemical structure on energy storage properties

Zheng, Hao; Cao, Qiping; Zhu, Mengni; Xu, Dang; Guo, Haoyu; Li, Yao; Zhou, Jinghui

doi:10.1039/d1ta00317h

Cited by 44 publications

(22 citation statements)

References 56 publications

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“…Moreover, the slight changes of the curve shapes demonstrate rapid migration at high scanning rates with an increase of the scanning rate. 38 At the same time, CAC-4 encloses the larger area than CC on the basis of the CV curves (Fig. S2a † ) owing to the chemical activation.…”

Section: Resultsmentioning

confidence: 90%

Celery-derived porous carbon materials for superior performance supercapacitors

Liu

et al. 2021

Nanoscale Adv.

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Section: Resultsmentioning

confidence: 90%

Celery-derived porous carbon materials for superior performance supercapacitors

Liu

et al. 2021

Nanoscale Adv.

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“…The particle size of range C-ZIF-67 was 0.35–0.90 μm, and it had a rough three-dimensional flower-like structure ( Figure 2A ) with fluffy tentacles on its surface. This special morphology increased the contact area between carbon materials and the electrolyte, which shortened the transmission path of electrons and improved the capacitance of carbon materials ( Zheng et al, 2021 ). After concentration, the morphology of the material was changed.…”

Section: Resultsmentioning

confidence: 99%

Effects of ultrafiltration on Co-Metal Organic Framework/pre-hydrolysis solution carbon materials for supercapacitor energy storage

Sha²,

Yang³

et al. 2022

Front. Chem.

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Here, a Co-Metal Organic Framework/pre-hydrolysis (Co-MOF/pre-hydrolysis) solution carbon material is prepared by a mild and environmentally-friendly hydrothermal carbonization technique using a pulping pre-hydrolysis solution as the raw material and Co-MOF as the metal dopant. The stable hollow structure provide sufficient space for particle shrinkage and expansion, while the low density and large specific surface area of the long, hairy tentacle structure provide a greater contact area for ions, which shorten the transmission path of electrons and charges. The materials exhibit excellent specific capacitance (400 F/g, 0.5 A/g) and stability (90%, 10,000 cycles). The Change of different concentration ratios in the structures significantly affect the electrochemical performance. The specific surface area of the carbon materials prepared by ultra-filtration increased, but the specific surface area decrease as ultrafiltration concentration increase. The specific capacitance decrease from 336 F/g for C-ZIF-67-1/3 volume ultrafiltration to 258 F/g for C-ZIF-67-1/5 ultrafiltration. The results indicate that energy storage by the carbon materials relied on a synergistic effect between their microporous and mesoporous structures. The micropores provide storage space for the transmission of ions, while the mesopores provide ion transport channels. The separation of large and small molecules after ultrafiltration concentration limit the ion transmission and energy storage of the pores.

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“…The biomass-based carbon fibers had enhanced mechanical properties (maximum tensile strength of 49 MPa, Young’s modulus of 3 GPa), as well as good EC performance (later presented in Section 5.2 , Table 4 ). Cellulose acetate was mixed with phosphatized lignin to fabricate an electrospun biomass-derived carbon electrode [ 152 , 153 ]. The optimal specific capacitance of biomass-derived carbon nanofibers as a three-electrode system was 363.1 F/g.…”

Section: Electrochemical (Ec) Performance Of Lignocellulose-derived Carbon-based Flexible Supercapacitorsmentioning

confidence: 99%

“…Other polymers such as poly(N-vinyl-2-pyrrolidone) (PVP) [ 184 , 188 , 189 ], poly(methyl methacrylate) (PMMA) [ 190 ], polyethylene glycol (PEG) [ 186 , 193 ], protein [ 187 ] and cellulose acetate [ 151 , 152 , 153 , 185 ] have been used as blending polymers to fabricate lignin-based electrospun CNFs as flexible electrodes, and the corresponding fabrication condition and EC performance is summarized in Table 4 . These electrodes demonstrated high EC performance mainly due to high SSA and porous structure.…”

Section: Electrochemical (Ec) Performance Of Lignocellulose-derived Carbon-based Flexible Supercapacitorsmentioning

confidence: 99%

Lignocellulosic Biomass-Derived Carbon Electrodes for Flexible Supercapacitors: An Overview

Xiang

Lin

et al. 2021

Materials

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With the increasing demand for high-performance electronic devices in smart textiles, various types of flexible/wearable electronic device (i.e., supercapacitors, batteries, fuel cells, etc.) have emerged regularly. As one of the most promising wearable devices, flexible supercapacitors from a variety of electrode materials have been developed. In particular, carbon materials from lignocellulosic biomass precursor have the characteristics of low cost, natural abundance, high specific surface area, excellent electrochemical stability, etc. Moreover, their chemical structures usually contain a large number of heteroatomic groups, which greatly contribute to the capacitive performance of the corresponding flexible supercapacitors. This review summarizes the working mechanism, configuration of flexible electrodes, conversion of lignocellulosic biomass-derived carbon electrodes, and their corresponding electrochemical properties in flexible/wearable supercapacitors. Technology challenges and future research trends will also be provided.

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Biomass-based flexible nanoscale carbon fibers: effects of chemical structure on energy storage properties

Abstract: Flexible nano-scale carbon materials with good energy storage properties prepared by biomass have been a challenging task. Herein, we develop a simple and efficient strategy for preparing high-performance green...

Cited by 44 publications

References 56 publications

Celery-derived porous carbon materials for superior performance supercapacitors

Celery-derived porous carbon materials for superior performance supercapacitors

Effects of ultrafiltration on Co-Metal Organic Framework/pre-hydrolysis solution carbon materials for supercapacitor energy storage

Lignocellulosic Biomass-Derived Carbon Electrodes for Flexible Supercapacitors: An Overview

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