Enhanced electrochemical performance of wood derived carbon-based supercapacitor electrodes by freezing and thawing pretreatment salt template method

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 225, P. 120546 - 120546

Published: Jan. 20, 2025

Language: Английский

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Porous α-Fe2O3 Hollow Rods/Reduced Graphene Oxide Composites Templated by MoO3 Nanobelts for High-Performance Supercapacitor Applications

Molecules, Journal Year: 2024, Volume and Issue: 29(6), P. 1262 - 1262

Published: March 12, 2024

Porous α-Fe2O3 hollow rods/reduced graphene oxide (α-Fe2O3 HR/RGO) composites with unique morphological characteristics and a high surface area are prepared through template strategy, which was systematically studied found to have outstanding supercapacitive properties. When served as active material in three-electrode setup, the optimized HR/RGO-30, comprised 76.5 wt% 23.2 RGO, able offer largest specific capacitance of 426.3 F g−1, an excellent rate capability well satisfactory cycle life retention 87.7% Coulombic efficiency 98.9% after continuously charging/discharging at 10 A g−1 for beyond 10,000 cycles. Such electrochemical behaviors HR/RGO-30 electrode can rival or even surpass those many Fe2O3-based electrodes documented previous literature. Later, symmetric supercapacitor cell HR/RGO-30//α-Fe2O3 fabricated. The assembled device offers maximum energy density 18.7 Wh kg−1, also exhibits commendable capability, features stable cycling durability (with 83.2% together 99.3% 10,000-cycle charge/discharge 5 g−1). These notable performances enable composite be high-potential advanced storage systems.

Language: Английский

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Graphitic carbon nitride film deposited with nitrogen-doped carbon nanoparticles as electrode for high-performance supercapacitors

Carbon letters, Journal Year: 2024, Volume and Issue: 34(9), P. 2279 - 2290

Published: May 29, 2024

Language: Английский

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A review of equivalent-circuit model, degradation characteristics and economics of Li-ion battery energy storage system for grid applications

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 101, P. 113908 - 113908

Published: Oct. 1, 2024

Language: Английский

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Nitrogen-doped activated carbon composite electrode for deionization of phosphate removal and DFT model adsorption of phosphates

Chemosphere, Journal Year: 2024, Volume and Issue: 364, P. 142973 - 142973

Published: July 29, 2024

Language: Английский

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Synergistic design and synthesis of O, N Co-doped hierarchical porous carbon for enhanced supercapacitor performance

Energy Materials, Journal Year: 2025, Volume and Issue: 5(3)

Published: Jan. 15, 2025

Carbon-based supercapacitors have emerged as promising energy storage components for renewable applications due to the unique combination of various physicochemical characteristics in porous carbon materials (PCMs) that can improve specific capacitance (SC) properties. It is essential develop a methodical approach exploits synergy these effects PCMs achieve superior performance. In this study, machine learning (ML) provided clear direction experiments screening key features; SHapley Additive exPlanations analysis on ML indicated surface area and doping species had significant synergistic impact SC enhancement. Utilizing insights, an O, N co-doped hierarchical (ONPC-900) was synthesized using pyrolysis strategy through K2CO3-assisted in-situ thermal exfoliation nanopore generation. This method leverages role nitride (graphite-phase nitride) layer-stacked template oxygen (O)-rich properties pre-treated lignite, enabling controlled synthesis graphene-like folded amorphous hybrid structures engineered efficient O sites high area, resulting electrode material with enhanced structural adaptability, rapid charge transfer, diffusion mass transfer capacity. Density functional theory (DFT) calculations further confirmed pyrrole nitrogen (N-5), carboxyl (-COOH) active sites, defect structure formed by pores synergically adsorption electrolyte ions (K+) electron improving The optimized ONPC-900 exhibited impressive 440 F g-1 (0.5 A g-1), outperforming most coal-based PCMs. study provides methodology designing synthesizing optimizing characteristic parameters synergism from complex structure-activity relationships screening, experimental synthesis, density validation.

Language: Английский

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In-situ catalytic dehydration construction of hierarchical nano microporous carbon with NH4Cl for supercapacitors and zinc ion hybrid capacitors

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 632, P. 236238 - 236238

Published: Feb. 4, 2025

Language: Английский

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Mechanism of Different Cation Substituting Centers on the Superelectric Properties of Layered Double Hydroxides

Springer Proceedings in Materials, Journal Year: 2025, Volume and Issue: unknown, P. 177 - 186

Published: Jan. 1, 2025

Language: Английский

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Green synthesis of Nano-ZnO/N-Doped porous carbon composites for High-Performance Non-Enzymatic electrochemical glucose sensing

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113272 - 113272

Published: March 1, 2025

Language: Английский

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Defect-engineered 0D carbon spheres from Artocarpus Heterophyllus Peel waste: a breakthrough in high performance symmetric supercapacitors with extended operating voltage up to 2 V

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112318 - 112318

Published: April 1, 2025

Language: Английский

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