Silk-derived nitrogen-doped porous carbon electrodes with enhanced ionic conductivity for high-performance supercapacitors

Sun, Yan; Xue, Song; Sun, Jun; Li, Xingxing; Ou, Yu‐Chen; Zhu, Baohuan; Demir, Müslüm

doi:10.1016/j.jcis.2023.04.130

Cited by 32 publications

(10 citation statements)

References 56 publications

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“…The inset shows the GCD plots of the first and 8000th cycles of the cycle stability test, which shows that the last cycle curve can still maintain a quasi-isosceles triangle shape, indicating excellent cycle stability. 37 Figure 7d shows the specific capacitances of NWC-a-b and AC-800 at different current densities. The specific capacitance of NWC-0.5-700 is higher at all current densities, indicating that the performance of NWC-0.5-700 is better than other samples.…”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure c, the capacitance retention of the carbon material is 92% after 8000 cycles at a current density of 5 A g –1 . The inset shows the GCD plots of the first and 8000th cycles of the cycle stability test, which shows that the last cycle curve can still maintain a quasi-isosceles triangle shape, indicating excellent cycle stability Figure d shows the specific capacitances of NWC- a - b and AC-800 at different current densities.…”

Section: Resultsmentioning

confidence: 99%

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One-Step Synergistic Effect to Produce Two-Dimensional N-Doped Porous Carbon Nanosheets with Ultrahigh Porosity from Biomass for High-Performance Supercapacitors

Li,

Bai

et al. 2023

Energy Fuels

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Biomass is an ideal source for the preparation of electrode materials due to its abundant distribution, renewability, and low price. Carbon materials constructed by nitrogen doping can greatly improve the performance of electrode materials, provide additional pseudocapacitance, and expand the application of supercapacitors in practice. Nitrogen-doped walnut shell (WS) carbon materials were prepared by chemical cross-linking and KOH activation using WS and γ-polyglutamic acid as raw materials. The effects of the ratio for carbon and nitrogen source compounds and activation temperature on the morphology, pore structure, graphitization of the carbon materials, and their electrochemical properties were systematically investigated. Nitrogen-doped WS carbon materials possessed a unique 2D lamellar structure and a high specific surface area (1932 m2 g–1). The addition of heteroatoms increased the polarizability and conductivity of the carbon material and introduced additional pseudocapacitance as a result of the good electrochemical performance. At a current density of 0.5 A g–1, the specific capacitance of materials can reach 342.0 F g–1 with a capacitance retention rate of 73% (20 A g–1). After 8000 cycles, the capacitance loss is only 8%, providing excellent electrochemical performance.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

One-Step Synergistic Effect to Produce Two-Dimensional N-Doped Porous Carbon Nanosheets with Ultrahigh Porosity from Biomass for High-Performance Supercapacitors

Li,

Bai

et al. 2023

Energy Fuels

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show abstract

“…82 Sun et al introduced a simple approach to augment the ionic conductivity of Ndoped porous carbon (NPC) obtained from silk via organic liquid treatment. 83 With the cooperation of organic liquid, the NPC realized an increased capacity (565.3 F g −1 at 1 A g −1 ), and assembled SSCs showcased favorable stability (93.3% over 10 000 cycles) while maintaining an impressive energy density (26.2 W h kg −1 at 263.9 W kg −1 ). Fibroin can transform into different kinds of carbon material with high-temperature treatment thanks to the easy processing.…”

Section: Collagenmentioning

confidence: 99%

Recent advances in biopolymers-based carbon materials for supercapacitors

Li,

Zhu

et al. 2023

RSC Adv.

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“…Biomass-derived carbon-based materials are sourced from diverse organic sources, such as plants, agricultural waste, or forestry residues, rendering it a renewable resource with applications in a wide array of physicochemical reactions. − Sustainable biomass-derived carbon materials have potential in H 2 production as a result of their versatility and reduced environmental impact. − For example, Sun et al used Bombyx mori silk to create nitrogen-doped porous carbon composites for supercapacitors . Lv et al developed Co/N-doped biocarbon from a mushroom source as bifunctional electrocatalysts for the HER and oxygen reduction reaction (ORR) through a facile co-pyrolysis …”

Section: Introductionmentioning

confidence: 99%

“…15−17 For example, Sun et al used Bombyx mori silk to create nitrogen-doped porous carbon composites for supercapacitors. 18 Lv et al developed Co/Ndoped biocarbon from a mushroom source as bifunctional electrocatalysts for the HER and oxygen reduction reaction (ORR) through a facile co-pyrolysis. 19 In addition, biomass materials can be obtained from biological waste, which also solves the problem of environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

Review on Biomass-Derived Carbon-Based Materials for Electrocatalytic Hydrogen Production: State of the Art and Outlook

Li,

Lu,

Fang

et al. 2023

Energy Fuels

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The increasing demand for sustainable hydrogen production is driven by the rapid expansion of global energy consumption. Electrocatalytic H 2 production is one of the preferred methods for future energy technology. The hydrogen evolution reaction (HER) has attracted extensive attention as an important half-reaction for traditional water electrolysis. However, cost-effective and efficient electrode materials for HER are scarce. Biomass-derived carbon-based materials could offer a promising solution by utilizing biomass waste through rational engineering design, which can address biomass pollution but also enable the synthesis of effective electrocatalytic materials, aligning with the principles of green chemistry. This study provides a comprehensive review of multiple synthetic methods for producing carbon-based materials from biomass, such as pyrolysis, hydrothermal carbonization, ionothermal carbonization, and molten salt carbonization. The diverse applications of these materials in H 2 production are explored. Effective treatment strategies and valuable insights for future biomass-derived carbon-based material design in H 2 production are also presented. This progress contributes to a better understanding of these materials and offers valuable insights for future explorations.

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Silk-derived nitrogen-doped porous carbon electrodes with enhanced ionic conductivity for high-performance supercapacitors

Cited by 32 publications

References 56 publications

One-Step Synergistic Effect to Produce Two-Dimensional N-Doped Porous Carbon Nanosheets with Ultrahigh Porosity from Biomass for High-Performance Supercapacitors

One-Step Synergistic Effect to Produce Two-Dimensional N-Doped Porous Carbon Nanosheets with Ultrahigh Porosity from Biomass for High-Performance Supercapacitors

Recent advances in biopolymers-based carbon materials for supercapacitors

Review on Biomass-Derived Carbon-Based Materials for Electrocatalytic Hydrogen Production: State of the Art and Outlook

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