Preparation of Biomass-Derived Porous Carbon Aerogels via Ice Template-Assisted Chemical Activation for High-Performance Supercapacitors DOI
Xin Hou, Penggang Ren,

Wenhui Tian

et al.

Journal of Analytical and Applied Pyrolysis, Journal Year: 2024, Volume and Issue: unknown, P. 106934 - 106934

Published: Dec. 1, 2024

Language: Английский

Rearrangement of Pore Structure-Enabled Micropore-Dominant N,O Co-Doped Carbon for Ultrafast Charge/Discharge Rate Supercapacitors at Commercial-Scale Mass Loading DOI
Lili Jiang, Huimin Shi, Mingxuan Han

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

N-doped porous carbon materials possess abundant pores and nitrogen functionalities, holding significant potential for supercapacitors. However, achieving precise control of the pore structure to enhance electrochemical performance remains challenging in large-scale production commercial electrode materials. Herein, Chinese yam, a rhizome plant rich dopamine, is selected as precursor prepare N,O-codoped hierarchical (N/O-PC-3) via one-step carbonization activation process. The precisely controlled by adjusting degree aggregation zinc-containing hydrolysates biomass through synergistic action ZnCl2 (activating agent) NH4Cl (nitrogen source). Due its micropore-dominant structure, high (10.5 at. %) oxygen (13.1 content, along with good electronic conductivity excellent wettability, N/O-PC-3 exhibits remarkable frequency response, an ultrahigh rate up 5 V s–1 gravimetric, volumetric, areal capacitances 414 F g–1, 311 cm–3, 23.8 μF cm–2 at 1 A respectively. It also demonstrates capability (326 g–1 100 79% capacitance retention). Even mass loading 15 mg cm–2, achieves gravimetric 223 g–1. assembled symmetric supercapacitor delivers energy density 22.9 W h kg–1 power 102.9 kg–1, making it highly desirable practical application storage. Additionally, this work offers straightforward approach controlling

Language: Английский

Citations

46
Construction of N/O co-doped defect-rich porous carbon (DRPC) by multifunctional potassium salt initiated multistage explosion coupled with microwave pyrolysis DOI
Xikui Zhang, Zhaosheng Yu, Xiaoqian Ma

et al.

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134464 - 134464

Published: Jan. 22, 2025

Language: Английский

Citations

1
Fabrication of porous carbon nanosheets via Urea-Promoted activation of potassium citrate for enhanced supercapacitor performance DOI
Xinyang Wu, Jun Liu, Ying Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162487 - 162487

Published: April 1, 2025

Language: Английский

Citations

1
Nanoflower porous carbon derived from bio-oils with enhanced supercapacitors by thermoplastic temperature control DOI
Mao Chen, Guosong Ni, Sherif A. El‐Khodary

et al.

Biomass and Bioenergy, Journal Year: 2025, Volume and Issue: 198, P. 107883 - 107883

Published: April 9, 2025

Language: Английский

Citations

0
Heteroatom-Enriched Carbon Particles Derived from Multifunctional Polybenzoxazine Particles for High-Performance Supercapacitors DOI

Ingita Tiwari,

Vaishali Tanwar, Pravin P. Ingole

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(17), P. 7185 - 7204

Published: Aug. 20, 2024

The rational molecular engineering of a heteroatom-enriched polymer precursor to achieve inherently doped carbon material is crucial importance for advanced applications. In the present work, molecular-design flexibility polybenzoxazine utilized fabricate N, O-codoped framework using facile template-free extended sol–gel method phloroglucinol, polyethylenimine, and formaldehyde as multifunctional precursors. uniform spherical morphology polymeric particles was attained by careful tuning reactant stoichiometric ratio, concentration, solvent ratio in reaction medium control kinetics particle formation. corresponding heteroatom-doped spheres with 28% nitrogen 20.5% oxygen determined CHNS analysis were subjecting moderate carbonization conditions, resulting formation partial graphitic structure. structure BET surface area 221 m2 g–1 high heteroatom content makes it potential candidate electrochemical energy storage. performance supercapacitor evaluated three-electrode system where displayed an excellent specific capacitance 728 F at 10 A current density 0.1 M H2SO4 electrolyte, 56 W h kg–1 power 14246 kg–1. further flexible all-solid-state symmetric two-electrode simulate real-time analysis. active appreciable 50.3 0.2 g–1. addition, retention ∼86% after 2500 cycles asymmetric configuration also confirmed reversible nature device, negligible changes resistance values obtained before cyclic tests. as-synthesized precursor-based fabrication presents itself promising electrodes.

Language: Английский

Citations

2
Sustainable utilization of waste biomass (Benincasa hispida): Synthesis of N, O-doped foamy porous carbon with high capacitive properties by one-step oxidation-activation DOI
Cen Li, Lunjing Yan, Meijun Wang

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 107, P. 114887 - 114887

Published: Dec. 8, 2024

Language: Английский

Citations

2
Dual Molten Salt Synthesis of Oxygen Rich Hierarchical Porous Carbon as Cathode Materials for Zinc‐Ion Hybrid Capacitor DOI
Xinyang Zhang, Jun Ni, Weijian Chen

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Abstract Hierarchical porous carbon exhibits great potential as the cathode materials for zinc ion hybrid capacitor. Herein, a convenient and novel strategy is reported to prepare oxygen rich hierarchical derived from alginate by dual molten salt using KHCO 3 NaHCO activators. The obtained (OPC‐700) possesses well‐developed interconnected skeleton, large specific surface area (1193.6 m 2 g −1 ), abundant functional groups. Owing co‐effect, prepared electrode shows capacity of 410.7 F superior electrochemical stabilization. More importantly, Zn// ZnSO 4 //OPC‐700 capacitor assembled with OPC‐700 cathode, foil anode delivers an energy density 124.5 Wh kg stabilization in .

Language: Английский

Citations

2
One-step preparation of nano-needle-like NiCo-based basic carbonates combined with corn bracts-derived carbon materials for high-performance asymmetric supercapacitors DOI

Yanping Li,

Jinfeng Zheng, Jiao Sun

et al.

Journal of Materials Science, Journal Year: 2024, Volume and Issue: 59(37), P. 17545 - 17557

Published: Sept. 26, 2024

Language: Английский

Citations

0
Minimizing the confinement effect of micropores to optimize the capacitive performance of carbon materials DOI
Yanbo Wang,

Hongwei Zhao,

Lixiang Li

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177228 - 177228

Published: Oct. 1, 2024

Language: Английский

Citations

0
Symmetric supercapacitor based on flaky structured Cr2O3 electrodes with excellent power density DOI
I. Manohara Babu,

Sureshkumar Myilsamy,

Ramesh Kumar

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177472 - 177472

Published: Nov. 1, 2024

Language: Английский

Citations

0