Beyond the horizons of graphene: xenes for energy applications

Santra, Sumon; Ghosh, Anuraag; Das, Bishwajit; Pal, Shibam; Pal, Saikat; Adalder, Ashadul

doi:10.1039/d3su00445g

RSC Sustain.

2024

DOI: 10.1039/d3su00445g

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Beyond the horizons of graphene: xenes for energy applications

Sumon Santra,

Anuraag Ghosh,

Bishwajit Das

et al.

Abstract: Over the past 20 years, graphene has impacted various applications. Similar to graphene, monoelemental 2D materials from groups 13–16 have shown potential in catalysis, supercapacitors, and battery applications in recent years.

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Cited by 2 publications

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

Molele,

Saliu,

Abubakar

et al. 2024

Chemistry Africa

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

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

Molele,

Saliu,

Abubakar

et al. 2024

Chemistry Africa

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Synergistic effects of haematite/hausmannite anchored graphene hybrids in high-energy density asymmetric supercapacitors

Govindarajan,

Selvaraj,

Limphirat

et al. 2024

Journal of Alloys and Compounds

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Beyond the horizons of graphene: xenes for energy applications

Abstract: Over the past 20 years, graphene has impacted various applications. Similar to graphene, monoelemental 2D materials from groups 13–16 have shown potential in catalysis, supercapacitors, and battery applications in recent years.

Cited by 2 publications

References 360 publications

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

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

Synergistic effects of haematite/hausmannite anchored graphene hybrids in high-energy density asymmetric supercapacitors

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