NiMnO3-rGO nanocomposites in a cotton-based flexible yarn supercapacitor

Al-khaykanee, Ali Hasan; Ghorbani, Shaban Reza; Arabi, Hadi; Ghanbari, Reza

doi:10.1007/s10854-023-11868-8

Cited by 2 publications

(1 citation statement)

References 75 publications

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“…The achieved maximum C sp and Q sp retention metrics exceed those of several previously reported supercapacitors, as detailed in plot of ED versus PD (Figure d). Table S2 (Supporting Information). ,− This includes comparisons to configurations such as FeVO 4 //NiMn 2 O 4 which demonstrated a C sp of 50 F/g and an ED of 16 W h/kg at a PD of 1125 W/kg, and another CNT@NiMn 2 O 4 //AC systems, which showed a C sp of 102.8 F/g alongside an ED of 36 W h/kg at a PD of 800 W/kg …”

Section: Resultsmentioning

confidence: 99%

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Thonge,

Dhas,

Waghmare

et al. 2024

ACS Appl. Nano Mater.

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Our study presents a facile hydrothermal approach for synthesizing NiMn 2 O 4 and NiMn 2 O 4 /C nanostructures (NSs) intended for implementation as electrode materials in highperformance supercapacitors. The NiMn 2 O 4 and NiMn 2 O 4 /C NSs synthesized via the hydrothermal method were comprehensively characterized using XRD, FE-SEM, FT-IR, XPS, and BET. Subsequently, the electrochemical performance of both NiMn 2 O 4 and NiMn 2 O 4 /C was evaluated via CV, GCD, and EIS in 2 M KOH aqueous electrolyte. Our results demonstrate that the NiMn 2 O 4 /C electrode revealed a substantial specific capacitance/capacity of 789.3 F g −1 /552.5 C g −1 at a scan rate of 5 mV s −1 . Furthermore, the NiMn 2 O 4 /C electrode maintained a specific capacity retention of less than 4% after 5000 cycles. When coupled with an activated carbon (AC) electrode, the NiMn 2 O 4 /C//AC configuration exhibited a notable specific capacitance/capacity of 101.6 F g −1 /162.5 C g −1 , accompanied by a high energy density of 36.11 W h kg −1 at a power density of 1000 W kg −1 , and sustained excellent cyclic stability (84% retention after 5000 cycles). Additionally, electrochemical analysis revealed an overpotential of 199 mV at 50 mA cm −2 and a minimal Tafel slope of 89 mV dec −1 for the oxygen evolution reaction (OER), suggesting the suitability of the NiMn 2 O 4 /C electrode for alkaline water electrocatalysis. Prolonged chronopotentiometry investigations at 100 mA cm −2 over 24 h further demonstrated a remarkable 97.3% retention of the OER activity.

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Section: Resultsmentioning

confidence: 99%

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Thonge,

Dhas,

Waghmare

et al. 2024

ACS Appl. Nano Mater.

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Cotton and cellulose for supercapacitor-based carbon materials and conductive polymers

Badawi,

Batoo,

Agrawal

2025

Inorganic Chemistry Communications

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NiMnO3-rGO nanocomposites in a cotton-based flexible yarn supercapacitor

Cited by 2 publications

References 75 publications

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Cotton and cellulose for supercapacitor-based carbon materials and conductive polymers

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NiMnO3-rGO nanocomposites in a cotton-based flexible yarn supercapacitor

Cited by 2 publications

References 75 publications

Facile Hydrothermal Synthesis of NiMn2O4/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Facile Hydrothermal Synthesis of NiMn2O4/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Cotton and cellulose for supercapacitor-based carbon materials and conductive polymers

Contact Info

Product

Resources

About

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction