Does high sulphur coal have the potential to produce high performance - low cost supercapacitors?

Yağlikçi, Savaş; Gökçe, Yavuz; Yağmur, Emine; Banford, Anthony; Aktaş, Zeki

doi:10.1016/j.surfin.2020.100899

Cited by 11 publications

(8 citation statements)

References 60 publications

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“…The creation of C–S bonds in the activated carbon framework increases electronegativity and susceptibility to redox reactions. With the properties listed above, sulfur from coal is a promising additive for supercapacitor applications …”

Section: Resultsmentioning

confidence: 99%

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Blending of Activated Low-Grade Coal Powder with Coconut Shell Waste for Supercapacitor Applications

et al. 2022

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Activated carbons (ACs) are the key components for supercapacitors due to their several advantages including abundant availability, low cost, ease of fabrication, and controllable physicochemical properties. In recent times, the investigation on the relationship between supercapacitor performances and the morphology, texture, and dimensions of different types of activated carbons is becoming essential to optimize the best energy storage devices. The main objective of the current study is to create an improved activated carbon material by blending low-grade coal powder (subbituminous rank available in Northeast India) and waste coconut shell-based activated carbon at different weight ratios to use as indigenous supercapacitor electrode materials. The mixed-blend improved ACs exhibit excellent electrochemical performance (specific capacitance of 251.67 F g −1 at 0.5 A g −1 ) as compared to the commercially available AC sample. The prototype supercapacitor (45.6 cm 2 pouch cell configuration) fabricated by using the blended coal-and coconut shell-based activated carbons shows an estimated capacitance of ∼30 F at 2.7 V in an organic electrolyte (1.5 M TEABF 4 in ACN) with cellulose paper-based separators (TF40-30; NKK). It was also observed that the fabricated prototype supercapacitor is capable of lighting an LED (32 mW) for an entire hour, demonstrating a promising future in high-performance and low-cost energy storage technologies.

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Section: Resultsmentioning

confidence: 99%

“…With the properties listed above, sulfur from coal is a promising additive for supercapacitor applications. 57…”

Section: Electrochemical Performance Of Mixed-blend Acsmentioning

confidence: 99%

Blending of Activated Low-Grade Coal Powder with Coconut Shell Waste for Supercapacitor Applications

et al. 2022

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“…13–15 Yaglicki et al selected high-sulfur coal char as a supercapacitor precursor to eliminate a S doping step, however their chemical activation process still included high concentration HCl and HF washing. 13 The authors noted that these treatments significantly increase process complexity and cost. Other studies on coal char-derived supercapacitor electrodes have employed: HCl washing; 14 ultrasonic-assisted chemical activation; 15 NH 4 Cl-assisted KOH-activation, with HCl and HF washing; 16 and physical activation with CO 2 and H 2 O.…”

Section: Introductionmentioning

confidence: 99%

“…Prior reports of coal char-based supercapacitors typically perform extensive chemical and physical treatments on the char prior to use as a supercapacitor electrode. [13][14][15] Yaglicki et al selected high-sulfur coal char as a supercapacitor precursor to eliminate a S doping step, however their chemical activation process still included high concentration HCl and HF washing. 13 The authors noted that these treatments significantly increase process complexity and cost.…”

Section: Introductionmentioning

confidence: 99%

Ultra-low cost supercapacitors from coal char: effect of electrolyte on double layer capacitance

et al. 2023

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“…The most preferred carbon-based materials in commercial electrode production are activated carbons (AC). AC can be obtained from several carbonaceous materials, such as biomasses [ 14 ], polymers [ 15 ], coals [ 16 ], and waste materials [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Waste jean derived self N-containing activated carbon as a potential electrode material for supercapacitors

GÖKÇE

2023

Turkish Journal of Chemistry

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The rapid rise of the world population increases the annual amount of waste textile products. Textile products create a significant amount of CO 2 , water, and chemical footprints during production. Therefore, the reusability of textile products has an important environmental and economic impact. Waste denim was used in this study to produce activated carbon (AC) samples as the alternative substance for supercapacitor electrodes. Characterisation studies showed that AC samples contain nitrogen originating from the elastane in the denim structure. Electrochemical characterisation tests proved the pseudocapacitive behaviour of the denim-derived AC due to the nitrogen content. Specific capacitance values observed for the three-electrode and two-electrode cell configurations were 95.93 F/g and 54.64 F/g at 1 A/g, respectively. Good capacitive retention (83.01%) of the cell after 3000 galvanostatic charge-discharge cycles at 1 A/g shows that waste denim can be considered as raw material for energy storage systems.

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Does high sulphur coal have the potential to produce high performance - low cost supercapacitors?

Cited by 11 publications

References 60 publications

Blending of Activated Low-Grade Coal Powder with Coconut Shell Waste for Supercapacitor Applications

Blending of Activated Low-Grade Coal Powder with Coconut Shell Waste for Supercapacitor Applications

Ultra-low cost supercapacitors from coal char: effect of electrolyte on double layer capacitance

Waste jean derived self N-containing activated carbon as a potential electrode material for supercapacitors

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