Surface Oxygen Engineering Catalytic Pore Tailoring of Coal-Based Needle Coke toward Capacitive Porous Carbon DOI
Dongdong Zhang,

Weijun Ma,

Jie Luo

et al.

Langmuir, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

Coal-based needle coke (CNC) is an ideal carbon precursor for capacitive materials due to its layered graphitic structure and high electrical conductivity. However, the pore-rich engineering structural inheriting of CNC-derived during conventional activation process present challenges. Herein, a surface oxygen catalytic pore tailoring strategy developed manipulate porous structures carbon. This synthesis uses air oxidation form oxygen-rich microregions on CNC surface, which can effectively tear graphite protective shell, accelerate bonding KOH with groups, catalyze etching reaction between potassium compounds atoms. Thanks low temperature 600 °C alkali-to-carbon ratio 1:1, obtained (PC) inherits long-range from CNC, specific areas be adjusted 182.6 855.4 m2 g–1 by adjusting temperature, far more than that PC (7.6 g–1) derived direct activation. The optimized shows capacitance 308.3 F at 0.5 A retention 212.2 20 68.8%. assembled supercapacitor delivers energy density 8.12 Wh kg–1 power 50.0 W ultralong cycle stability 99% Coulombic efficiency 100% after 50,000 cycles. study validates feasibility catalysis in soft enhancing capacitance.

Language: Английский

Localized assembly in biological activity: Origin of life and future of nanoarchitectonics DOI
Jingwen Song, Kohsaku Kawakami, Katsuhiko Ariga

et al.

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 339, P. 103420 - 103420

Published: Feb. 3, 2025

Language: Английский

Citations

3
Polydopamine/Melamine Sponge-Derived Compressible Carbon Foam for High-Performance Supercapacitors DOI

Yixin Miao,

Yuge Xu,

Cheng Hu

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Electrode materials with a deformation capability are vital to the development of flexible supercapacitors. However, preparation porous carbons deformability remains challenging. Herein, compressible carbon foam has been successfully prepared using polydopamine/melamine sponge (PDA/MS) as precursor material. The structure was controlled by cetyltrimethylammonium bromide and K2CO3 template activating agent, respectively. resultant PDA/MS-derived (KDMC) three-dimensional network architecture exhibits excellent compressibility. specific surface area reaches ∼2890.0 m2 g–1. Furthermore, KDMC demonstrates outstanding capacitive performance, including capacitance (365.6 F g–1, 0.5 A g–1), good rate (86.6% retention from 10 cycling stability (only 1.9% loss after 10,000 cycles). To further demonstrate practical application potential KDMC, symmetric supercapacitor (KDMC//KDMC) assembled PVA/KOH gel electrolyte. device achieved an energy density 10.44 W h kg–1. This work presents robust method prepare electrode for high-performance

Language: Английский

Citations

2
Preparation of coal-based porous carbon assisted by deep eutectic solvents for enhanced zinc ion storage DOI
Jia Guo, Tao Wang, Dongling Wu

et al.

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

Published: Feb. 1, 2025

Language: Английский

Citations

2
"Enhanced Supercapacitor and Catalytic Properties of CuMn-MOF/Ag Composites for Energy Storage and Hydrogen Evolution" DOI
Muhammad Zeeshan, Soumaya Gouadria, F. F. Alharbi

et al.

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112632 - 112632

Published: Feb. 1, 2025

Language: Английский

Citations

1
High Capacitance Performance N, O Codoped Carbon Foams Synthesized via an All-In-One Step Carbonization of Molecular Salt Strategy DOI

Liye Ni,

Guangjie Yang,

Chenweijia He

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(37), P. 19701 - 19710

Published: Sept. 2, 2024

The preparation of porous carbon is constrained by the extensive use and detrimental impact activators dopants. Therefore, developing green efficient strategies that leverage intrinsic properties pretreatment materials to achieve self-activation self-doping particularly crucial for materials. Herein, potassium histidine was utilized as molecular salt precursor, attaining streamlined through a one-step carbonization process enables self-activation, self-doping, self-templating. More interestingly, temperature significantly impacts structure precursors, heteroatoms, electrochemical performance. designed electrodes exhibit high accessibility electrolyte ions effective ion-electron transport channels. optimal material (KHis800) has an excellent mass-specific capacitance 305.2 F g

Language: Английский

Citations

8
Comparative Study of Bimetallic Cu/Co MOF Synthesis Strategies and Their Electrochemical Features DOI Creative Commons

Mohan Rao Tamtam,

Rui Wang,

Ravindranadh Koutavarapu

et al.

Nanoscale Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In this work, three distinct synthetic procedures—step-by-step (CC-1), single-step (CC-2), and simple mixing (CC-3)—were utilized to investigate their effects on the formation of heterostructures in bimetallic Cu/Co-MOFs.

Language: Английский

Citations

0
Nanoarchitectonics of hierarchical porous carbon derived from starch for high-performance supercapacitors DOI
Kai Zhao,

Jia-Xiang Yang,

Yu Song

et al.

Chemical Physics Letters, Journal Year: 2025, Volume and Issue: unknown, P. 142093 - 142093

Published: April 1, 2025

Language: Английский

Citations

0
Tailoring porous carbon from optimized coal blends for high-performance supercapacitor electrodes DOI

Yanli Zhu,

Tao Wang,

Yan Ma

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162989 - 162989

Published: April 1, 2025

Language: Английский

Citations

0
Heteroatom-Functionalized Carbon Nanoarchitectonics: Unlocking the Doping Effects for High-Performance Supercapacitor Electrode Design DOI Creative Commons
Pragati A. Shinde, Lok Kumar Shrestha, Katsuhiko Ariga

et al.

Green Energy & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0
Surface Oxygen Engineering Catalytic Pore Tailoring of Coal-Based Needle Coke toward Capacitive Porous Carbon DOI
Dongdong Zhang,

Weijun Ma,

Jie Luo

et al.

Langmuir, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

Coal-based needle coke (CNC) is an ideal carbon precursor for capacitive materials due to its layered graphitic structure and high electrical conductivity. However, the pore-rich engineering structural inheriting of CNC-derived during conventional activation process present challenges. Herein, a surface oxygen catalytic pore tailoring strategy developed manipulate porous structures carbon. This synthesis uses air oxidation form oxygen-rich microregions on CNC surface, which can effectively tear graphite protective shell, accelerate bonding KOH with groups, catalyze etching reaction between potassium compounds atoms. Thanks low temperature 600 °C alkali-to-carbon ratio 1:1, obtained (PC) inherits long-range from CNC, specific areas be adjusted 182.6 855.4 m2 g–1 by adjusting temperature, far more than that PC (7.6 g–1) derived direct activation. The optimized shows capacitance 308.3 F at 0.5 A retention 212.2 20 68.8%. assembled supercapacitor delivers energy density 8.12 Wh kg–1 power 50.0 W ultralong cycle stability 99% Coulombic efficiency 100% after 50,000 cycles. study validates feasibility catalysis in soft enhancing capacitance.

Language: Английский

Citations

1