Performance evaluation of electrochemical capacitors with activated carbon spheres as electrode material and aqueous electrolyte

Płatek-Mielczarek, Anetta; Conder, Joanna; Fic, Krzysztof; Ghimbeu, Camélia Matei

doi:10.1016/j.jpowsour.2022.231714

Cited by 8 publications

(3 citation statements)

References 54 publications

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Section: Bwdcsmentioning

confidence: 99%

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Recent Advances in Biomass Waste Derived Carbon Materials for Supercapacitors: A Review

Chen,

Wang,

Wang

2024

Energy Tech

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As the core component of supercapacitors (SCs), the electrode material plays a decisive role in performance. Among electrode materials, carbon materials are the most widely used due to high porosity and specific surface area (SSA, 1000–3000 m2 g−1). Biomass carbon stands out in carbon materials because of its wide source, low cost, and less pollution. This work reviews the recent advances on carbon materials derived from biomass waste for SCs and explores the effects of different biomass sources including plant, animal, and aquatic organism waste on the performance of biomass waste‐derived carbon materials (BWDCs). Because of its high conductivity (1.25 × 103 ≈ 3 × 105 S m−1), power density (>10 kW kg−1), and extended cycle life (>10 000 cycles), BWDCs are advancing quickly in energy storage. It also discusses different methods and optimization pathways of BWDCs thoroughly. Finally, the challenges and future prospects for BWDCs are summarized. Overall, this critical will help researchers to gain a better understanding of source selection, structural classification, and research strategies for BWDCs, thereby promoting the application of BWDCs in electrochemistry and resource utilization.

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Section: Bwdcsmentioning

confidence: 99%

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confidence: 99%

Recent Advances in Biomass Waste Derived Carbon Materials for Supercapacitors: A Review

Chen,

Wang,

Wang

2024

Energy Tech

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“…To enhance the specific capacitance, CNFs were activated in a few studies; however, activation did not lead to significant improvements in capacitance as activation improves the micropore volume, which cannot be accessed by electrolyte. 2,3 Further tuning the mesopore and micropore volumes using activation is not a standard practice for carbon nanofibers, unlike activated carbon. Hence, porous carbon nanofibers with excellent mesopore volume were prepared using physical etching of selective polymer from polymer-polymer blends of polyacrylonitrile (PAN)/polyvinylpyrrolidone (PVP), PAN/poly methyl methacrylate (PMMA), and PAN/polyacrylic acid (PAA).…”

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confidence: 99%

Binder-free Ruthenium Oxide/MXene/Carbon Nanofiber Ternary Composite Electrode for Supercapacitors

Donthula

Vooradi

Patnaikuni

et al. 2023

J. Electrochem. Soc.

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Carbon nanofiber-based electrodes are generally embedded with either metal oxides or two-dimensional materials to enhance their specific capacitance and rate performance. For the first time, a flexible carbon nanofiber electrode consisting of metal oxide (RuO2) and two-dimensional MXene was prepared to realize the synergetic effect on the electrochemical performance. This ternary composite electrode was prepared by electrospinning RuO2, and MXene dispersed polyacrylonitrile precursor solution, followed by thermal treatment. The distribution of RuO2 nanoparticles and delaminated MXene sheets within a carbon nanofiber matrix was examined using X-ray diffraction and transmission electron microscopy, while morphological analysis was carried out using scanning electron microscopy. The electrode with pseudocapacitive RuO2 and layered MXene facilitated charge storage by faradic reactions and intercalation of electrolyte ions. Electrochemical studies demonstrated that the prepared ternary composite electrodes exhibit a specific capacitance of 322 F g-1 with a capacitance retention of 90% after 2500 cycles at 1 A g-1. Additionally, the ternary composite showed an excellent rate capability with a minimal drop in capacitance when the current density was varied from 2 A g-1 to 10 A g-1.

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Polymer-derived carbon materials for energy storage devices: A mini review

Zhao

Sun

Liu

et al. 2023

Carbon

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Performance evaluation of electrochemical capacitors with activated carbon spheres as electrode material and aqueous electrolyte

Cited by 8 publications

References 54 publications

Recent Advances in Biomass Waste Derived Carbon Materials for Supercapacitors: A Review

Recent Advances in Biomass Waste Derived Carbon Materials for Supercapacitors: A Review

Binder-free Ruthenium Oxide/MXene/Carbon Nanofiber Ternary Composite Electrode for Supercapacitors

Polymer-derived carbon materials for energy storage devices: A mini review

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