The application of biomass-based carbon materials in flexible all-solid supercapacitors

Zhang, Xiao; Zhao, Ming; Chen, Zejian; Yan, Tao; Li, Jiangli; Ma, Yanqing; Ma, Lei

doi:10.1007/s10854-022-08449-6

Cited by 13 publications

(2 citation statements)

References 50 publications

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“…The specific capacitance values of ZnPCN-1 correspond to 221, 198, 191, 188, 185, 179, and 174 F g −1 for current densities of 1, 2, 3, 4, 5, 10, and 20 A g −1 , respectively. When comparing these with other previously reported carbon-derived electrodes (C9-250k-12 (197 F g −1 ) [ 36 ], MA6 (182 F g −1 ) [ 37 ], SAK (129 F g −1 ) [ 38 ], SSP-900 (199 F g −1 ) [ 39 ], Gna-CA (140 F g −1 ) [ 13 ]) ( Table S2 ), the electrodes used in this study possessed comparable or much better performances, suggesting the potential applications of ZnPCN-1 in practical fields in the future.…”

Section: Resultsmentioning

confidence: 66%

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Tian,

Weng,

Xiao

et al. 2023

IJMS

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Supercapacitors, with high energy density, rapid charge–discharge capabilities, and long cycling ability, have gained favor among many researchers. However, the universality of high-performance carbon-based electrodes is often constrained by their complex fabrication methods. In this study, the common industrial materials, zinc gluconate and ammonium chloride, are uniformly mixed and subjected to a one-step carbonization strategy to prepare three-dimensional hierarchical porous carbon materials with high specific surface area and suitable nitrogen doping. The results show that a specific capacitance of 221 F g−1 is achieved at a current density of 1 A g−1. The assembled symmetrical supercapacitor achieves a high energy density of 17 Wh kg−1, and after 50,000 cycles at a current density of 50 A g−1, it retains 82% of its initial capacitance. Moreover, the operating voltage window of the symmetrical device can be easily expanded to 2.5 V when using Et4NBF4 as the electrolyte, resulting in a maximum energy density of up to 153 Wh kg−1, and retaining 85.03% of the initial specific capacitance after 10,000 cycles. This method, using common industrial materials as raw materials, provides ideas for the simple preparation of high-performance carbon materials and also provides a promising method for the large-scale production of highly porous carbons.

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Section: Resultsmentioning

confidence: 66%

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Tian,

Weng,

Xiao

et al. 2023

IJMS

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“…The specific capacitance C (F g −1 ) of electrodes can be calculated according to the following equation [24,25]:…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

P-Doped Modified Porous Carbon Derived from ZIF-8 for Enhanced Capacitive Performance

Guo,

Li,

et al. 2023

Energies

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Porous carbon materials derived from ZIF-8 have attracted extensive research attention on account of their large surface area, tunable mesoporosity and abundant nitrogen content. However, directly carbonized ZIF-8 usually suffers from a low electronic conductivity, poor wettability and relatively low mesoporosity, which severely restricts their capacitive performance. Herein, P-doped modified carbon materials derived from ZIF-8 (ZPCs) were synthesized by using nontoxic phytic acid as a phosphorus source, followed by carbonization at high temperature. Benefiting from its relatively high specific surface area of 911.7 m2 g−1 and higher ratio of mesopores, as well as N, O and P doping, ZPC-1000 delivers the largest specific capacity, up to 219.4 F g−1 at 1 A g−1, among the prepared samples and an outstanding cycle span, retaining 100% capacity after 2000 cycles at 5 A g−1. In this work, we highlight the strategy of constructing a synergistic effect between high mesoporosity and heteroatom doping, which can greatly boost the capacitive performance of carbon materials.

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Utilization of carbon‐black industry waste to synthesize electrode material for supercapacitors

Singh,

Srivastava,

Janowska

2024

Energy Storage

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Solid waste utilization in synthesizing porous carbon materials for supercapacitor electrodes has been a fast‐progressing research domain in past decades. Different types of agricultural and industrial waste have the potential to act as a precursor supply for carbon with porous structures. In this study, the waste generated from a furnace‐grade conductive carbon black manufacturing industry was utilized to synthesize porous carbon through pyrolysis at 400°C for 2 hours, followed by chemical activation at 800°C for 1 hour. Different activating agents, precisely, potassium hydroxide, orthophosphoric acid, and zinc chloride, were used. Similar activation conditions as well as the mass ratio of activating agent to sample (4:1), were maintained to make a comparative study. All three samples were then tested in a three‐electrode set‐up through cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy for their performance as electrode material for supercapacitors with a mass loading of 4.0 mg/cm2 in 1 M Na2SO4 electrolyte. The largest specific capacitance was obtained for the KOH‐activated sample, that is, 21.3 F/g, followed by 17.9 F/g for H3PO4 activated sample and 13.7 F/g for the ZnCl2‐activated sample, at a scan rate of 50 mV/s. Though the obtained capacitance is much smaller for its practical application, the study acts as a base for further modifications and upgrades to utilize this high carbon‐containing waste in energy storage.

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The application of biomass-based carbon materials in flexible all-solid supercapacitors

Cited by 13 publications

References 50 publications

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

Hierarchically Porous Carbon Nanosheets from One-Step Carbonization of Zinc Gluconate for High-Performance Supercapacitors

P-Doped Modified Porous Carbon Derived from ZIF-8 for Enhanced Capacitive Performance

Utilization of carbon‐black industry waste to synthesize electrode material for supercapacitors

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