Recent Advances in Porous Carbon Materials as Electrodes for Supercapacitors

Nanomaterials, Journal Year: 2023, Volume and Issue: 13(11), P. 1744 - 1744

Published: May 26, 2023

Porous carbon materials have demonstrated exceptional performance in various energy and environment-related applications. Recently, research on supercapacitors has been steadily increasing, porous emerged as the most significant electrode material for supercapacitors. Nonetheless, high cost potential environmental pollution associated with preparation process of remain issues. This paper presents an overview common methods preparing materials, including carbon-activation method, hard-templating soft-templating sacrificial-templating self-templating method. Additionally, we also review several emerging such copolymer pyrolysis, carbohydrate self-activation, laser scribing. We then categorise carbons based their pore sizes presence or absence heteroatom doping. Finally, provide recent applications electrodes

Language: Английский

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Pre‐Oxidating and Pre‐Carbonizing to Regulate the Composition and Structure of Coal Tar Pitch: The Fabrication of Porous Carbon for Supercapacitor Applications

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: March 18, 2024

Abstract The capacitive properties of supercapacitors highly rely on the reasonable design high‐performance electrode materials. Herein, a synergetic strategy pre‐oxidation and pre‐carbonization is proposed to prepare coal tar pitch (CTP) based porous carbon. formation mechanism carbon revealed. Pre‐oxidation increases heteroatom content promotes decomposition polycyclic aromatic hydrocarbons into small molecules, which more conducive improving subsequent activation enhancing microporous specific surface area. Also, autoclave polymerization precursors yield. Benefiting from synergistic effect pre‐carbonation, obtained exhibits superior capacitance 365 F g −1 . Meanwhile, ZnCl 2 used as hydrogen‐bonding acceptor synthesize ‐EG/PVA deep eutectic solvent (DES) gel, it applicable acidic, neutral, alkaline electrolytes. capacitor assembled with prepared DES gel electrolyte achieves high energy density 41.3 Wh kg works well in unconventional temperatures (−40–75 °C). This work confirms fabrication CTP‐based material expects using other pre‐oxidation/carbonization agents.

Language: Английский

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Nitrogen enriched high specific surface area biomass porous carbon: A promising electrode material for supercapacitors

Renewable Energy, Journal Year: 2024, Volume and Issue: 224, P. 120144 - 120144

Published: Feb. 14, 2024

Language: Английский

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Supercapacitor properties of N/S/O co-doped and hydrothermally sculpted porous carbon cloth in pH-universal aqueous electrolytes: Mechanism of performance enhancement

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149835 - 149835

Published: Feb. 19, 2024

Language: Английский

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Porous carbon generation by burning starch-based intumescent flame retardants for supercapacitors

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150353 - 150353

Published: March 11, 2024

Language: Английский

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Super‐Ionic Conductor Soft Filler Promotes Li⁺ Transport in Integrated Cathode–Electrolyte for Solid‐State Battery at Room Temperature

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(27)

Published: April 7, 2024

Abstract Composite polymer solid electrolytes (CPEs), possessing good rigid flexible, are expected to be used in solid‐state lithium‐metal batteries. The integration of fillers into matrices emerges as a dominant strategy improve Li + transport and form ‐conducting electrode–electrolyte interface. However, challenges arise traditional fillers: 1) inorganic fillers, characterized by high interfacial energy, induce agglomeration; 2) organic with elevated crystallinity, impede intrinsic ionic conductivity, both severely hindering migration. Here, concept super‐ionic conductor soft filler, utilizing conductivity nanocellulose (Li‐NC) model, is introduced which exhibits conductivity. Li‐NC anchors anions, enhances speed, assists the cathode–electrolyte electrodes for room temperature tough dual‐channel electrolyte (TDCT) polyvinylidene fluoride (PVDF) demonstrates transfer number (0.79) due synergistic coordination mechanism transport. Integrated electrodes’ design enables stable performance LiNi 0.5 Co 0.2 Mn 0.3 O 2 |Li cells, 720 cycles at C, 88.8% capacity retention. Furthermore, lifespan Li|TDCT|Li cells over 4000 h Li‐rich 1.2 Ni 0.13 0.54 excellent performance, proving practical application potential filler energy density batteries temperature.

Language: Английский

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Preparation of coal-based porous carbon assisted by deep eutectic solvents for enhanced zinc ion storage

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160245 - 160245

Published: Feb. 1, 2025

Language: Английский

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A Refined Stepwise Carbonation Strategy for Controllable Synthesis of Porous Carbon for High‐Performance Zinc‐Ion Hybrid Capacitors

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract The precise tailoring of the composition and structure porous carbon is crucial for its application in capacitors. Herein, a refined stepwise carbonization strategy, involving holding material at melting temperature metal salts controlled carbonization, proposed to precisely design coal tar pitch (CTP)‐based carbon. effectively modulates yield, pore structure, defect level Dwelling point promotes dehydration‐condensation CTP stabilizes skeleton, yielding high content. Theoretical calculations elucidate interaction between hydroxyl oxygen CTP, energy barrier as metric evaluate ability regulate microcrystalline proposed. Meanwhile, sodium alginate gels induced by aforementioned are prepared, zinc‐ion hybrid capacitor assembled with prepared gel exhibits superior specific capacity (219 mAh g −1 ), density (176.2 Wh kg broad range applicability (−40–75 °C). This study proposes universal method controlling capacitance properties CTP‐based It holds promise broadening scope preparation other materials.

Language: Английский

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A universal method of preparing high yield and N riched porous carbon by carbonizing coal tar pitch in air for supercapacitor

Journal of Power Sources, Journal Year: 2023, Volume and Issue: 573, P. 233114 - 233114

Published: May 1, 2023

Language: Английский

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Recent advances of chitosan-based nanocomposites for supercapacitor applications: Key challenges and future research directions

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 72, P. 108344 - 108344

Published: July 14, 2023

Language: Английский

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