Cationic Surfactant-Driven Evolution of NiFe2O4 Nanosheets for High-Performance Asymmetric Supercapacitors DOI Open Access
Pritam J. Morankar, Rutuja U. Amate, Aviraj M. Teli

и другие.

Materials, Год журнала: 2025, Номер 18(9), С. 1987 - 1987

Опубликована: Апрель 27, 2025

This work explores the role of cetyltrimethylammonium bromide (CTAB) as a morphology-directing agent in hydrothermal synthesis NiFe2O4 electrodes for high-performance supercapacitor applications. By fine-tuning CTAB concentrations (0.5%, 1%, and 1.5%), tunable nanosheet morphology was achieved, with NiFe-1 sample exhibiting uniformly interconnected nanosheets that enhanced ion diffusion, charge transport, surface redox activity. Structural analyses confirmed formation single-phase cubic presence Ni2+ Fe3+ oxidation states. Electrochemical characterization 2 M KOH electrolyte revealed electrode achieved an areal capacitance 8.21 F/cm2 at 20 mA/cm2, energy density 0.34 mWh/cm2 power 5.5 mW/cm2. The retained 79.61% its after 10,000 cycles, demonstrating excellent stability. An asymmetric pouch-type device (APSD), assembled using activated carbon, exhibited 1.215 delivered 0.285 6.5 mW/cm2 across wide 0-1.8 V voltage window. These results confirm CTAB-assisted nanostructuring significantly improves electrochemical performance electrodes, offering scalable effective approach next-generation storage

Язык: Английский

Cationic Surfactant-Driven Evolution of NiFe2O4 Nanosheets for High-Performance Asymmetric Supercapacitors DOI Open Access
Pritam J. Morankar, Rutuja U. Amate, Aviraj M. Teli

и другие.

Materials, Год журнала: 2025, Номер 18(9), С. 1987 - 1987

Опубликована: Апрель 27, 2025

This work explores the role of cetyltrimethylammonium bromide (CTAB) as a morphology-directing agent in hydrothermal synthesis NiFe2O4 electrodes for high-performance supercapacitor applications. By fine-tuning CTAB concentrations (0.5%, 1%, and 1.5%), tunable nanosheet morphology was achieved, with NiFe-1 sample exhibiting uniformly interconnected nanosheets that enhanced ion diffusion, charge transport, surface redox activity. Structural analyses confirmed formation single-phase cubic presence Ni2+ Fe3+ oxidation states. Electrochemical characterization 2 M KOH electrolyte revealed electrode achieved an areal capacitance 8.21 F/cm2 at 20 mA/cm2, energy density 0.34 mWh/cm2 power 5.5 mW/cm2. The retained 79.61% its after 10,000 cycles, demonstrating excellent stability. An asymmetric pouch-type device (APSD), assembled using activated carbon, exhibited 1.215 delivered 0.285 6.5 mW/cm2 across wide 0-1.8 V voltage window. These results confirm CTAB-assisted nanostructuring significantly improves electrochemical performance electrodes, offering scalable effective approach next-generation storage

Язык: Английский

Процитировано

0