N- and O- Doped Porous Carbon Nanosheets Prepared from Templating Methodology for Supercapacitors DOI Open Access

Baoning Zhu,

Jinghua Liu,

Qijun Zhong

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(9), P. 1198 - 1198

Published: April 27, 2025

Heteroatom-doped biomass-derived porous carbon materials show promising applications as electrode components in energy storage technologies. In this investigation, we present a template-assisted pyrolysis procedure to fabricate nitrogen–oxygen dual-doped materials. Firstly, the precursor and template initially polymerized form white jelly-like gel, which was freeze-dried create nanosheet-assembled structure. Subsequent high-temperature induced formation of structure with nanosheet morphology. The CMC-ZnK sample derived from dual potassium citrate zinc acetate pyrolyzed at 800 °C exhibits optimal electrochemical performance, delivering specific capacitance 271.4 F g−1 1 A three-electrode configuration, along outstanding rate capability (90% retention, 244 10 g−1). constructed supercapacitor demonstrated an density 6.5 Wh kg−1 under power 500 W kg−1. Furthermore, study systematically investigated performance variation mechanisms different temperatures, revealing relationship between structural composition temperature biomass

Language: Английский

N- and O- Doped Porous Carbon Nanosheets Prepared from Templating Methodology for Supercapacitors DOI Open Access

Baoning Zhu,

Jinghua Liu,

Qijun Zhong

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(9), P. 1198 - 1198

Published: April 27, 2025

Heteroatom-doped biomass-derived porous carbon materials show promising applications as electrode components in energy storage technologies. In this investigation, we present a template-assisted pyrolysis procedure to fabricate nitrogen–oxygen dual-doped materials. Firstly, the precursor and template initially polymerized form white jelly-like gel, which was freeze-dried create nanosheet-assembled structure. Subsequent high-temperature induced formation of structure with nanosheet morphology. The CMC-ZnK sample derived from dual potassium citrate zinc acetate pyrolyzed at 800 °C exhibits optimal electrochemical performance, delivering specific capacitance 271.4 F g−1 1 A three-electrode configuration, along outstanding rate capability (90% retention, 244 10 g−1). constructed supercapacitor demonstrated an density 6.5 Wh kg−1 under power 500 W kg−1. Furthermore, study systematically investigated performance variation mechanisms different temperatures, revealing relationship between structural composition temperature biomass

Language: Английский

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