Efficient Electrochemical Performance of Sr(OH)2:MnO2 Binary Composites for Solid State Symmetric Supercapacitor DOI
Suneel Kumar Sharma,

Kavyashree Kavyashree,

S. N. Pandey

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(21)

Published: June 3, 2024

Abstract In this study, we synthesized a binder‐free composite electrode based on Sr(OH) 2 /MnO material. The active was prepared using the layer‐by‐layer (LBL) technique. surface architecture of sample examined through scanning electron microscopy (SEM) and high‐resolution (FE‐SEM). Further, microstructural information revealed via transmission (TEM). confirmation ensured X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), energy‐dispersive (EDX) spectra with mapping analysis. exhibited maximum specific capacitance 554.7 F g −1 at 5 mVs in 6 M KOH electrolyte. maintained ~65 % retention after 10,000 galvanostatic charge‐discharge (GCD) cycles. Furthermore, assembled symmetric supercapacitor device highest value 124.7 @ within potential span 1.2 V. This demonstrated capability to illuminate light‐emitting diodes (LEDs) different colors. energy power densities were calculated as 26.66 Wh kg 9884.54 W respectively. stability performance ~57 GCD These findings strongly suggest that material represent promising options for future storage applications.

Language: Английский

Cobalt‐Based Materials in Supercapacitors and Batteries: A Review DOI Creative Commons

Jyothi A. Goudar,

S. N. Thrinethra,

Sharanappa Chapi

et al.

Advanced Energy and Sustainability Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Energy demand has become a persistent concern and high‐performance energy storage systems have increasingly undergone development. Supercapacitors batteries pose great impact on garner deal of attention from technologies researchers alike. The performance saving devices is primarily determined by the electrode material in terms high specific capacitance, excellent conductivity, remarkable natural abundance, unique electrochemical qualities, also large surface area. Cobalt (Co)‐based materials are widely used devices. Nevertheless, combination Co ferrite such as nickel, zinc, copper, or Co/nonferrite like metal–organic frameworks layered double hydroxides improved their ultimate efficiency. This review deals with applications Co‐based materials, categorizing ferrites, characterization, performance, design manufacturing intended to supercapacitors applications. Summarizing main outcomes literature supercapacitors, comprising combined carbon nanotubes, graphene, silica, cadmium, ferrous, lanthanum reviewed discussed. Lithium‐ion investigated specifically, perspectives development for future generations outlined.

Language: Английский

Citations

7
Enriched performance of solid state symmetric supercapacitor based on ((Sr(OH)2/FeO(OH)) binary composite electrode DOI
Suneel Kumar Sharma,

Priyanka Maurya,

S. N. Pandey

et al.

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: 333, P. 130357 - 130357

Published: Jan. 5, 2025

Language: Английский

Citations

0
Pseudocapacitor to supercapattery transition in AlOOH induced by iron doping DOI
Priyanka Maurya, Suneel Kumar Sharma, S. N. Pandey

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 112, P. 115551 - 115551

Published: Jan. 28, 2025

Language: Английский

Citations

0
Efficient Electrochemical Performance of Sr(OH)2:MnO2 Binary Composites for Solid State Symmetric Supercapacitor DOI
Suneel Kumar Sharma,

Kavyashree Kavyashree,

S. N. Pandey

et al.

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(21)

Published: June 3, 2024

Abstract In this study, we synthesized a binder‐free composite electrode based on Sr(OH) 2 /MnO material. The active was prepared using the layer‐by‐layer (LBL) technique. surface architecture of sample examined through scanning electron microscopy (SEM) and high‐resolution (FE‐SEM). Further, microstructural information revealed via transmission (TEM). confirmation ensured X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), energy‐dispersive (EDX) spectra with mapping analysis. exhibited maximum specific capacitance 554.7 F g −1 at 5 mVs in 6 M KOH electrolyte. maintained ~65 % retention after 10,000 galvanostatic charge‐discharge (GCD) cycles. Furthermore, assembled symmetric supercapacitor device highest value 124.7 @ within potential span 1.2 V. This demonstrated capability to illuminate light‐emitting diodes (LEDs) different colors. energy power densities were calculated as 26.66 Wh kg 9884.54 W respectively. stability performance ~57 GCD These findings strongly suggest that material represent promising options for future storage applications.

Language: Английский

Citations

2