Harnessing sustainable N-doped activated carbon from walnut shells for advanced all-solid-state supercapacitors and targeted Rhodamine B dye adsorption

Journal of Science Advanced Materials and Devices, Journal Year: 2024, Volume and Issue: 9(2), P. 100699 - 100699

Published: March 4, 2024

This research introduces a novel approach to repurposing walnut shells, an abundant agricultural waste, for the synthesis of sustainable nitrogen-doped activated carbon (N@AC). The resulting material exhibits remarkable properties suitable dual applications in high-performance all-solid-state supercapacitors and efficient Rhodamine B dye (RhB) adsorption. In three-electrode setup, N@AC electrode impressive specific capacitance 484.6 F g-1 at 1 A long-term stability, maintaining 97.4% its initial performance even after 5000 charge-discharge cycles. Simultaneously, symmetric supercapacitor configuration (N@AC//N@AC) demonstrates outstanding capacitance, registering 168.8 g-1, accompanied by favourable rate capability 67.3% 10 g-1. Notably, N@AC//N@AC attains high energy density 39.8 WhKg−1 Furthermore, cyclic retaining 83.91% 10,000 Moreover, adsorption efficiency toward RhB is scrutinized, highlighting efficacy addressing environmental remediation challenges. porous architecture nitrogen functionalities play crucial role expeditiously eliminating organic pollutants from aqueous solutions, offering treating wastewater. Optimal conditions highest are identified: pH 7.2, contact duration 180 min, concentration 20 mgL−1. Thermodynamic evaluations, encompassing determination ΔH◦, ΔS◦, signify endothermic spontaneous nature process. desorption investigations, it noted that H2O, employed as eluting agent, proficiently releases 87.35% adsorbed dye.

Language: Английский

---

Flexible Micro-Supercapacitors: Materials and Architectures for Smart Integrated Wearable and Implantable Devices

Energy storage materials, Journal Year: 2024, Volume and Issue: unknown, P. 103791 - 103791

Published: Sept. 1, 2024

Language: Английский

---

A Review on Biomass-Derived Activated Carbon for Next-Generation Supercapacitors: Cutting-Edge Advances and Future Prospects

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Language: Английский

---

VxOy quantum dot-enhanced nitrogen-sulfur dual-doped hierarchical porous carbon electrodes from waste eggshell membranes for advanced flexible supercapacitors

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 526 - 539

Published: Feb. 24, 2025

Language: Английский

---

Porous carbon materials with different dimensions and their applications in supercapacitors

Journal of Physics D Applied Physics, Journal Year: 2024, Volume and Issue: 57(43), P. 433001 - 433001

Published: Aug. 1, 2024

Abstract Supercapacitors have become attractive energy storage devices due to their high power density, good cycling stability, and fast charging discharging speeds. Porous carbon has great specific surface area, density conversion performance, so porous as supercapacitor electrode material been widely concerned. Carbon materials with different dimensions sizes, such spheres, nanotubes, nanofibers graphene activated can provide performance advantages. At the same time, composite of metal compounds, conductive polymers particles containing N/P/O/S further optimize materials, well significant effects on increase area are obtained. This article introduces used in recent years, multi-level structural related materials. We first introduced compared electrochemical performance. Then, based various research results, factors affecting its were discussed detail. As as, preparation methods introduced, requirements, advantages disadvantages briefly analyzed. The application combined other supercapacitors is listed. Finally, a summary outlook current status supplied, providing reference for rational design future.

Language: Английский

---

Preparation of furfural residue-based nitrogen-doped porous carbon for utilization as electrode material for supercapacitors

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 630, P. 236079 - 236079

Published: Dec. 28, 2024

Language: Английский

---

Solvothermal synthesis of Ni/Co-based metal-organic framework with nanosheets-like structure for high-performance supercapacitor

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 702, P. 134814 - 134814

Published: July 19, 2024

Language: Английский

---

Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 168, P. 112859 - 112859

Published: July 19, 2024

Language: Английский

---

Performance study of high energy storage supercapacitor from waste corn husk biomass electrode materials

Journal of Physics and Chemistry of Solids, Journal Year: 2024, Volume and Issue: 194, P. 112265 - 112265

Published: Aug. 12, 2024

Language: Английский

---

Interconnected hierarchical 3D porous carbon derived from Saccharum officinarum L . leaf based on the synergistic effect of KOH for high performance supercapacitor

Energy Sources Part A Recovery Utilization and Environmental Effects, Journal Year: 2024, Volume and Issue: 46(1), P. 1 - 14

Published: Sept. 2, 2024

Porous carbon has continuously been explored based on biomass for green energy storage due to its abundant, renewable, environmentally friendly resource, economical features, and thermal-chemical stability. Therefore, this study aimed present porous derived from sugarcane or Saccharum officinarum L. leaf as a precursor, achieved through KOH activation strategy that combines two-step pyrolysis process. The synthesized material exhibited an interconnected 3D hierarchical structure, high specific surface area of 752 m2/g, purity 91.38%. Supercapacitor cell electrode had the highest capacitance 471 F/g induced by 0.5 M KOH. Furthermore, in 1 H2SO4 electrolyte solution, symmetrical supercapacitor electrodes produced 65.55 Wh/Kg at power output 329 W/Kg. As result, sustainable method was established using source is applied high-performance material.

Language: Английский

---