Enhancing Temperature‐Optimized Ionic Liquid Electrolytes for High‐Voltage, High‐Energy Supercapacitors Utilizing Date Stone‐Derived Carbon in Coin Cell Configuration

Battery energy, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

ABSTRACT This study investigates the advancement of coin cell supercapacitors (SCs) for sustainable, high‐performance energy storage by employing biomass‐derived date stone activated carbon with various ionic liquid (IL) electrolytes at different temperatures. The research reveals that SCs demonstrate both pseudocapacitive and electrochemical double‐layer characteristics. Among tested ILs, 1‐Butyl‐3‐methylimidazolium trifluoromethanesulfonate (BMIMOTf) emerges as most effective, achieving an impressive density 129.9 Wh kg −1 , a power 403.8 W specific capacitance 103.9 F g 0.5 A − 1 . After 5000 cycles, supercapacitor utilizing BMIMOTf maintains 97.3% its initial exhibits Coulombic efficiency approaching 100%. Additionally, temperature‐dependent analyses from room temperature to 50°C reveal higher temperatures boost performance SC, attributed improved conductivity. offers more comprehensive understanding how materials interact, emphasizing capacity foster innovations in eco‐friendly solutions.

Language: Английский

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Revolutionizing thorium capture: g-C3N4 electrodes for enhanced thorium electrosorption

Journal of Saudi Chemical Society, Journal Year: 2025, Volume and Issue: 29(1)

Published: March 11, 2025

Language: Английский

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Biomass nanoarchitectonics with Annona reticulate flowers for mesoporous carbon impregnated on CeO2 nanogranular electrode for energy storage application

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 154, P. 110949 - 110949

Published: June 17, 2023

Language: Английский

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Novel O, P, S self-doped with 3D hierarchy porous carbon from aromatic agricultural waste via H3PO4 activation for supercapacitor electrodes

Diamond and Related Materials, Journal Year: 2023, Volume and Issue: 140, P. 110415 - 110415

Published: Sept. 18, 2023

Language: Английский

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One-step hydrothermal synthesis of Cu doped SnS2 quantum dots anchored on reduced graphene oxide (rGO) as high-performance electrodes for supercapacitors

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 973, P. 172906 - 172906

Published: Nov. 23, 2023

Language: Английский

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Advances in sustainable nano-biochar: precursors, synthesis methods and applications

Nanoscale, Journal Year: 2024, Volume and Issue: 16(32), P. 15009 - 15032

Published: Jan. 1, 2024

Nano-biochar, characterized by its environmentally friendly nature and unique nanostructure, offers a promising avenue for sustainable carbon materials.

Language: Английский

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Effect of puffing on electrochemical properties of sorghum seed based porous carbon materials in supercapacitors

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 102, P. 114065 - 114065

Published: Oct. 9, 2024

Language: Английский

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High‐performance Supercapacitors Enabled by Highly‐porous Date Stone‐derived Activated Carbon and Organic Redox Gel Electrolyte

Asian Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 12(4)

Published: March 14, 2023

Abstract Construction of eco‐benign, cost effective, and high‐performance supercapacitors with improved electrolytes hierarchical porous electrodes is necessary for effective energy storage. In this study, a gel type organic redox electrolyte made polyvinyl alcohol (PVA)‐H 2 SO 4 an molecule, anthraquinone (PVA‐H ‐AQ) was prepared by simple solution casting method, used to construct symmetric supercapacitor (SSC) date stone‐derived activated carbon (DSAC) having high BET surface area (1612 m /g). The DSAC synthesized carbonization method followed activation potassium hydroxide. SSC exhibit specific capacitance 126.5 F/g at 0.5 A/g, as well density 17.5 Wh/kg power 250 W/kg retention (87%) after 1000 GCD cycles. present research suggests that adding PVA‐H improves the performance fabricated device significantly compared using pristine or 1 M H electrolytes. also presents promising approach development sustainable eco‐benign materials storage applications. use stone waste precursor material opportunity cost‐effective Overall, findings have important implications future design fabrication supercapacitors.

Language: Английский

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Preparation of activated nanocarbon from different variety of rice straw for fermentative hydrogen production from alkali spent treated rice straw hydrolyzate

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

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Facile Synthesis of Colocasia esculenta Peels‐Derived Activated Carbon for High‐Performance Supercapacitor

Energy Storage, Journal Year: 2024, Volume and Issue: 6(7)

Published: Oct. 1, 2024

ABSTRACT Biomass and biowaste resources can be used to create self‐doped carbon with a distinctive microstructure. Using an economical environmentally friendly method heteroatom‐doped electrode materials excellent electrochemical performance has attracted much attention in the energy storage industry. A novel facile two‐step, low‐cost, eco‐friendly synthesis for Colocasia esculenta peels been developed manufacture activated (CEPAC) as material supercapacitor application. The CEPAC 1:1 displayed high specific surface area of 910 m 2 /g oxygen‐heteroatom polar sites network. capacitance 525.3 F/g was recorded three‐electrode system using 3 M KOH solution. assembled symmetric cell delivered impressive 98.7 at 1 A/g while maintaining 98.4% initially after 10 000 charge–discharge cycles. These results present promising low‐cost simple processing route synthesizing superior properties high‐performance supercapacitors.

Language: Английский

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