Hard carbon with opened pore structure for enhanced sodium storage performance

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

OP-HC shows a high specific capacity of 350.7 mA h g −1 with ultra-high ICE. These results are attributed to its opened pore and enlarged d 002 interlayer spacing, which can enhance the reversibility Na + adsorption, intercalation filling process.

Language: Английский

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Closed pore structure engineering from ultra-micropores with the assistance of polypropylene for boosted sodium ion storage

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(20), P. 12015 - 12025

Published: Jan. 1, 2024

Closed pore architectures with exceptional Na-storage performance have been successfully fabricated from ultra-micropores the assistance of polypropylene.

Language: Английский

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P-doped spherical hard carbon with high initial coulombic efficiency and enhanced capacity for sodium ion batteries

Chemical Science, Journal Year: 2024, Volume and Issue: 15(22), P. 8478 - 8487

Published: Jan. 1, 2024

Hard carbon (HC) is one of the most promising anode materials for sodium-ion batteries (SIBs) due to its cost-effectiveness and low-voltage plateau capacity. Heteroatom doping considered as an effective strategy improve sodium storage capacity HC. However, previous heteroatom strategies are performed at a relatively low temperature, which could not be utilized raise Moreover, extra heteroatoms create new defects, leading initial coulombic efficiency (ICE). Herein, we propose repair based on trace amount P achieve high along with ICE. By employing cross-linked interaction between glucose phytic acid in situ doped spherical hard carbon, obtained PHC-0.2 possesses large interlayer space that facilitates Na+ transportation. In addition, suitable some defects layers. When used material SIBs, exhibits enhanced reversible 343 mA h g-1 20 ICE 92%. Full cells consisting Na2Fe0.5Mn0.5[Fe(CN)6] cathode exhibited average potential 3.1 V discharge 255 85%. The full cell displays excellent cycling stability retention 80.3% after 170 cycles. This method simple low-cost, can extended other energy materials.

Language: Английский

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Molecular engineering of pore structure/interfacial functional groups toward hard carbon anode in sodium-ion batteries

Energy storage materials, Journal Year: 2025, Volume and Issue: 75, P. 104008 - 104008

Published: Jan. 9, 2025

Language: Английский

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Synergistic effects of P-functionalization and localized graphitization in sustainable hard carbon for enhanced sodium and potassium storage

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 1200 - 1214

Published: Feb. 5, 2025

Language: Английский

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Biomass-derived hard carbon material for high-capacity sodium-ion battery anode through structure regulation

Carbon, Journal Year: 2024, Volume and Issue: 231, P. 119733 - 119733

Published: Oct. 22, 2024

Language: Английский

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Comparison and optimization of biomass-derived hard carbon as anode materials for sodium-ion batteries

Chemical Physics Letters, Journal Year: 2024, Volume and Issue: 842, P. 141214 - 141214

Published: March 19, 2024

Language: Английский

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Hierarchically porous closed-pore hard carbon as a plateau-dominated high-performance anode for sodium-ion batteries

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(22), P. 3071 - 3074

Published: Jan. 1, 2024

Sucrose-derived micro spherical hard carbon with diverse porosity and closed pores exhibits an excellent reversible capacity of 251 mA h g −1 at 1C retention 84% after 500 cycles.

Language: Английский

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Intrinsically Nitrogen-Enriched Biomass-Derived Hard Carbon with Enhanced Performance as a Sodium-Ion Battery Anode

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(8), P. 7368 - 7378

Published: April 1, 2024

Hard carbons are particularly suitable as negative electrodes for sodium-ion batteries (SIBs). To produce hard carbon particles with better sodium storage performance, such specific capacity, Coulombic efficiency, and cycling stability, a precursor preparation strategy must be developed. In this paper, we present new that is created by carbonizing jackfruit seed wastes. Under various high-temperature treatment pretreatment settings, wastes have been processed. As the carbonization temperature increased, became more graphitized. At same time, had great effect on how much could stored reversibly. Structural characterization of produced at temperatures revealed variance in their architectures, illuminating relationship between capacity increase size storage-available microspores. The (HC) optimized condition (1200 °C) delivered an improved than 221 mA h g–1 exceptional stability 98.8% over 100 cycles rate performance relying reversible insertion. existence naturally occurring nitrogen atoms, textural characteristics, Na+ adsorption-insertion into disordered layers can explain Na+-ion occurs developed HCs. Our study offers environmentally friendly method turning waste potential low-cost yet highly efficient anode material SIBs.

Language: Английский

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Green biomass: the impact of high-adhesion and well-dispersed binders on the sodium storage performance and interfacial interaction of hard carbon anodes

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(11), P. 6643 - 6655

Published: Jan. 1, 2024

Preparation of a high adhesion and dispersibility sodium carboxymethyl cellulose/sodium lignosulfonate(CMC/LS) water-soluble binder elucidated the impact functional groups on electrode interface.

Language: Английский

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