Design of Highly Active Silicene Hybrid Sheets for Electrode Applications in Battery-Type Supercapacitors DOI Creative Commons

Donald Tlou Molele,

Oluwaseyi D. Saliu,

Oluwafemi D. Abubakar

et al.

Chemistry Africa, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 23, 2024

Abstract In this study, silicene nanosheets (SNs) were synthesized using molten salt chemical exfoliation. Polythiophene (PTh) and SNs/PTh nanocomposites prepared through an in-situ oxidative polymerization method. Raman spectroscopy confirmed the formation of SNs, PTh, various at different ratios. X-ray diffraction (XRD) analysis verified presence crystalline amorphous nature combination SNs with PTh in nanocomposites. Field-emission scanning electron microscopy (FESEM) revealed morphology sheets distribution granular globes flakes Transmission (TEM) showed transparent reduced-stacking as well aggregated evenly distributed over surface Electrochemical tests indicated that exhibited higher specific capacitance, energy density, stable cycling performance compared to individual PTh. Cyclic voltammetry (CV) measurements best performing supercapacitor electrode, SNs/PTh-67 nanocomposite displayed a capacitance 276.25 F/g scan rate 5 mV/s delivered density 13.8 Wh/kg. The also excellent stability retention 85.9% after 2000 consecutive charge–discharge cycles current 4 A/g. This study demonstrates potential high-performance electrode material for supercapacitors.

Language: Английский

Synergistic effects of haematite/hausmannite anchored graphene hybrids in high-energy density asymmetric supercapacitors DOI
Durai Govindarajan, Manickam Selvaraj, Wanwisa Limphirat

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1004, P. 175949 - 175949

Published: Aug. 12, 2024

Language: Английский

Citations

3
Synthesis of Xenes: physical and chemical methods DOI Creative Commons
Alessandro Molle, Junji Yuhara,

Yukiko Yamada‐Takamura

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The synthesis of 2D Xenes and related materials ( e.g. heterostructures hybrids) is reviewed with respect to physical chemical methods, covering different epitaxial schemes, topotactic deintercalation exfoliation techniques.

Language: Английский

Citations

0
Focused Review on the Synthesis of Titanium Carbide MXene via Fluorine-Free Methods for Lithium-Ion Batteries DOI
Muhammad Ammar Munir, Sadia Khalid

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

Published: Feb. 4, 2025

Language: Английский

Citations

0
Design of Highly Active Silicene Hybrid Sheets for Electrode Applications in Battery-Type Supercapacitors DOI Creative Commons

Donald Tlou Molele,

Oluwaseyi D. Saliu,

Oluwafemi D. Abubakar

et al.

Chemistry Africa, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 23, 2024

Abstract In this study, silicene nanosheets (SNs) were synthesized using molten salt chemical exfoliation. Polythiophene (PTh) and SNs/PTh nanocomposites prepared through an in-situ oxidative polymerization method. Raman spectroscopy confirmed the formation of SNs, PTh, various at different ratios. X-ray diffraction (XRD) analysis verified presence crystalline amorphous nature combination SNs with PTh in nanocomposites. Field-emission scanning electron microscopy (FESEM) revealed morphology sheets distribution granular globes flakes Transmission (TEM) showed transparent reduced-stacking as well aggregated evenly distributed over surface Electrochemical tests indicated that exhibited higher specific capacitance, energy density, stable cycling performance compared to individual PTh. Cyclic voltammetry (CV) measurements best performing supercapacitor electrode, SNs/PTh-67 nanocomposite displayed a capacitance 276.25 F/g scan rate 5 mV/s delivered density 13.8 Wh/kg. The also excellent stability retention 85.9% after 2000 consecutive charge–discharge cycles current 4 A/g. This study demonstrates potential high-performance electrode material for supercapacitors.

Language: Английский

Citations

0