Assessment of the electrodeposition synthesized manganese chromite and cobalt‑nickel layered double hydroxide composite for high-performance supercapacitor applications

Rutavi, Gift; Tarimo, Delvina Japhet; Maphiri, Vusani M.; Kitenge, Vianney Ngoyi; Manyala, Ncholu I.

doi:10.1016/j.est.2022.106442

Cited by 4 publications

(1 citation statement)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CV of CoCr-LDH@ VNiS 2 at different scan rates of 5−120 mV s −1 shown in Figure 6b demonstrates two redox peaks, indicating that the capacitance is primarily dependent on the faradic redox process associated with M-O/M-O-OH, where M is Co or Cr. 23,24 Moreover, the slight shift in the redox peak toward positive and negative potentials with the scan rate can be attributed to electrical conductivity and enhanced polarization effect. 25 The Nyquist plots represent that CoCr-LDH@VNiS 2 exhibits a low equivalent series resistance (R ESR ) (intrinsic resistance of the active material) of 0.40 Ω compared to CoCr-LDH and VNiS 2 , demonstrating the superior electrochemical performance of CoCr-LDH@VNiS 2 , shown in Figure 6c.…”

Section: Electrochemical Supercapacitor Performance Analysismentioning

confidence: 99%

Synergistically Driven CoCr-LDH@VNiS₂ as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

Chauhan

Siraj

Joseph

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Utilizing alternative energy sources to fossil fuels has remained a significant issue for humanity. In this context, efficient earth-abundant bifunctional catalysts for water splitting and energy storage technologies like hybrid supercapacitors have become essential for achieving a sustainable future. Herein, CoCr-LDH@VNiS 2 was synthesized by hydrothermal synthesis. The CoCr-LDH@VNiS 2 catalyst entails 1.62 V cell voltage to reach the current density of 10 mA cm −2 for overall water splitting. The CoCr-LDH@VNiS 2 electrode illustrates a high electrochemical specific capacitance (Csp) of 1380.9 F g −1 at a current density of 0.2 A g −1 and an outstanding stability with 94.76% retention. Moreover, the flexible asymmetric supercapacitor (ASC) achieved an energy density of 96.03 W h kg −1 @0.2 A g −1 at a power density of 539.98 W kg −1 with remarkable cyclic stability. The findings provide a new approach toward the rational design and synthesis of bifunctional catalysts for water splitting and energy storage.

show abstract

Section: Electrochemical Supercapacitor Performance Analysismentioning

confidence: 99%

Synergistically Driven CoCr-LDH@VNiS₂ as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

Chauhan

Siraj

Joseph

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

High capacity Mo7S8 nanosheets with electrodeposited alpha-Co(OH)2 thin layer as positive electrode in hybrid potassium dual-ion supercapacitors

Qiu

Zhang

Yambou

et al. 2023

Electrochimica Acta

View full text Add to dashboard Cite

Fabrication of spinel MCr2O4 (M = Ni and Co) nanostructures as positive electrode materials for high-performance supercapacitors

Vinothkumar,

Sekhar,

Chen

et al. 2024

Journal of Energy Storage

View full text Add to dashboard Cite

Assessment of the electrodeposition synthesized manganese chromite and cobalt‑nickel layered double hydroxide composite for high-performance supercapacitor applications

Cited by 4 publications

References 73 publications

Synergistically Driven CoCr-LDH@VNiS₂ as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

Synergistically Driven CoCr-LDH@VNiS₂ as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

High capacity Mo7S8 nanosheets with electrodeposited alpha-Co(OH)2 thin layer as positive electrode in hybrid potassium dual-ion supercapacitors

Fabrication of spinel MCr2O4 (M = Ni and Co) nanostructures as positive electrode materials for high-performance supercapacitors

Contact Info

Product

Resources

About

Assessment of the electrodeposition synthesized manganese chromite and cobalt‑nickel layered double hydroxide composite for high-performance supercapacitor applications

Cited by 4 publications

References 73 publications

Synergistically Driven CoCr-LDH@VNiS2 as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

Synergistically Driven CoCr-LDH@VNiS2 as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

High capacity Mo7S8 nanosheets with electrodeposited alpha-Co(OH)2 thin layer as positive electrode in hybrid potassium dual-ion supercapacitors

Fabrication of spinel MCr2O4 (M = Ni and Co) nanostructures as positive electrode materials for high-performance supercapacitors

Contact Info

Product

Resources

About

Synergistically Driven CoCr-LDH@VNiS₂ as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors

Synergistically Driven CoCr-LDH@VNiS₂ as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors