Freestanding fibers assembled by CoPSe@N-doped carbon heterostructures as an anode for fast potassium storage in hybrid capacitors

Liu, Xueya; Wang, Jianli; Tang, Tiantian; Li, Caiyun; Liu, Yukun; Si, Liang; Zhang, Sen; Deng, Chao

doi:10.1016/j.jechem.2023.07.034

Cited by 7 publications

(1 citation statement)

References 73 publications

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“…Additionally, the deposition of electrolytes on the surfaces of the bundle is also seen. Materials such as these offer the potential for utilizing high-capacitance, lightweight, and flexible forms in supercapacitor applications [6,7].…”

Section: Introductionmentioning

confidence: 99%

Chemically exfoliated refined carbon from industrial tea waste for capacitive energy storage

Güngör,

Akgül,

Bakan-Misirlioglu

et al. 2024

Phys. Scr.

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Graphitic carbon materials, renowned as favored energy storage materials, offer exceptional features such as a high surface area, customizable surface functionality, stability, and durability and have been extensively investigated. However, the predominant challenge is identifying highly efficient, cost-effective, sustainable, and environmentally friendly materials and sources. Abundant natural biomass, the sole renewable carbon resource, is a promising capacitive graphitic carbon reservoir. This study explores the catalytic carbonization of biomass derived from industrial tea waste, employing FeCl3 as a graphitization agent. Subsequently, the biomass undergoes chemical exfoliation to produce graphene-like compounds. The electrochemical performances are comprehensively examined. This innovative technique aims to modulate the capacitance of the refined carbonaceous material, which has increased from 30 F/g to 81 F/g through the chemical exfoliation of resistive oxygenated groups, rendering it suitable for a prospective supercapacitor application.

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Section: Introductionmentioning

confidence: 99%

Chemically exfoliated refined carbon from industrial tea waste for capacitive energy storage

Güngör,

Akgül,

Bakan-Misirlioglu

et al. 2024

Phys. Scr.

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Comprehensive Insights into Potassium‐Ion Capacitors: Mechanisms, Materials, Devices and Future Perspectives

Cai,

Wang,

Wang

et al. 2024

Advanced Energy Materials

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Alkali metal‐ion capacitors integrate two electrodes from both batteries and supercapacitors (SCs), combining the advantages of large capacity, high‐rate performance, and long cycle life. Potassium (K) has similar properties to sodium (Na) and lithium (Li), however, the abundance of K in the crust is the same with Na, and much higher than Li. Due to the fast kinetics and low self‐discharge of Potassium‐ion capacitors (PICs), PICs attract more interest from researchers in the field of electrochemical energy storage. The current dilemma is that the research on PICs is more inherited from sodium‐ion capacitors (SICs) and lithium‐ion capacitors (LICs). Despite advancements in electrode materials, there is still a lack of profound understanding of the intrinsic issues and key challenges of PICs. In order to provide a detailed and systematic analysis of the development of PICs, in this review, special attention is given on the following Accordingly, full eight key sections: i) development history, ii) defining equations, iii) energy storage mechanism, iv) device configuration, v) electrode materials, vi) electrolyte design, vii) key technologies, and viii) future perspectives. This review provides an intensive theoretical foundation for the development of PICs and is able to pave the path for the practical application of PICs.

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Heterostructured CoS2/SnS2 encapsulated in sulfur-doped carbon exhibiting high potassium ion storage capacity

Ma,

Ouyang,

Liang

et al. 2024

Journal of Colloid and Interface Science

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Freestanding fibers assembled by CoPSe@N-doped carbon heterostructures as an anode for fast potassium storage in hybrid capacitors

Cited by 7 publications

References 73 publications

Chemically exfoliated refined carbon from industrial tea waste for capacitive energy storage

Chemically exfoliated refined carbon from industrial tea waste for capacitive energy storage

Comprehensive Insights into Potassium‐Ion Capacitors: Mechanisms, Materials, Devices and Future Perspectives

Heterostructured CoS2/SnS2 encapsulated in sulfur-doped carbon exhibiting high potassium ion storage capacity

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