Hydrothermally synthesized Ni3V2O8 nanoparticles with horny surfaces for HER and supercapacitor application

Yewale, M.A.; Jadhvar, A.; Kharade, R.B.; Kadam, R.A.; Kumar, Vipin; Nakate, Umesh T.; Shelke, Pradip B.; Bobade, D.H.; Teli, Aviraj M.; Dhas, Suprimkumar D.; Shin, Dong-Chul

doi:10.1016/j.matlet.2023.134033

Cited by 15 publications

(8 citation statements)

References 15 publications

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“…The three electrodes utilized in this experiment: a working electrode made of MCO-0.3 MU, a platinum electrode which served as counter electrode, and an Ag/AgCl electrode which served as a reference electrode. The potentials were converted into RHE from equation [51][52][53]. Figure 12a,d shows LSV plots for HER and OER, respectively.…”

Section: Her and Oer Electrocatalysis Studymentioning

confidence: 99%

Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality

Yewale,

Teli,

Beknalkar

et al. 2024

Materials

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Surface microstructure modification of metal oxides also improves the electrochemical performance of metal oxide nanoparticles. The present investigation demonstrates how varying the urea molar content during the hydrothermal process altered the surfaces of MnCo2O4 nanoparticles. Successive increases of 0.1 M in urea concentration transformed the surface shape of MnCo2O4 nanoparticles from flower-like to sheet-like microstructures. Excellent electrochemical performance of MnCo2O4 nanoparticles was demonstrated in an aqueous 1 M KOH electrolyte. The improved MnCo2O4 nanoparticles have been employed to develop an asymmetric supercapacitor (ASC). The ASC device exhibits an energy density of 13 Wh/kg at a power density of 553 W/kg and a specific capacitance of 29 F g−1 at a current density of 4 mA/cm2. The MnCo2O4 nanoparticle electrode demonstrates remarkable electrocatalytic activity in both HER and OER. The MnCo2O4 electrode shows overpotential for HER and OER at 356 mV and 1.46 V, respectively. The Tafel slopes for HER and OER of the MnCo2O4 electrode are 356 mV/dec and 187 mV/dec, respectively.

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Section: Her and Oer Electrocatalysis Studymentioning

confidence: 99%

Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality

Yewale,

Teli,

Beknalkar

et al. 2024

Materials

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“…Inserting Co 3 O 4 nanoparticles into g-C 3 N 4 nanoparticles creates an active surface, which improves surface polarity, electrolytic performance, wettability, and electrical conductivity. This alteration will have an effect on the electrochemical performance and energy storage capabilities of Co 3 O 4 nanoparticles [ 18 , 19 , 20 , 21 , 22 ]. We propose a hydrothermal approach for making Co 3 O 4 -g-C 3 N 4 composites, while investigating the material’s electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

Elevating Supercapacitor Performance of Co3O4-g-C3N4 Nanocomposites Fabricated via the Hydrothermal Method

Yewale,

Kumar,

Teli

et al. 2024

Micromachines

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The hydrothermal method has been utilized to synthesize graphitic carbon nitride (g-C3N4) polymers and cobalt oxide composites effectively. The weight percentage of g-C3N4 nanoparticles influenced the electrochemical performance of the Co3O4-g-C3N4 composite. In an aqueous electrolyte, the Co3O4-g-C3N4 composite electrode, produced with 150 mg of g-C3N4 nanoparticles, revealed remarkable electrochemical performance. With an increase in the weight percentage of g-C3N4 nanoparticles, the capacitive contribution of the Co3O4-g-C3N4 composite electrode increased. The Co3O4-g-C3N4-150 mg composite electrode shows a specific capacitance of 198 F/g. The optimized electrode, activated carbon, and polyvinyl alcohol gel with potassium hydroxide were used to develop an asymmetric supercapacitor. At a current density of 5 mA/cm2, the asymmetric supercapacitor demonstrated exceptional energy storage capacity with remarkable energy density and power density. The device retained great capacity over 6k galvanostatic charge–discharge (GCD) cycles, with no rise in series resistance following cyclic stability. The columbic efficiency of the asymmetric supercapacitor was likewise high.

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“…The developed NiCo 2 S 4 @Ni 3 V 2 O 8 system outperformed conventional IrO 2 electrodes in water oxidation activity, achieving a current density of 35 mA cm −2 at an overpotential of 290 mV. 22,23 In this context, the composite of CuO−V 2 O 5 and the singlephase Cu 2 V 2 O 7 system has been developed through a solidstate route. In addition, counterpart phases, such as CuO and V 2 O 5 , have also been developed for comparative studies.…”

Section: ■ Introductionmentioning

confidence: 99%

CuO–V₂O₅ Composite vs Single-Phase Cu₂V₂O₇: Understanding the Synergy of Mixed-Metal Oxides in Customizing Their Properties for Improved Hydrogen Evolution Reaction

Jayaraj,

Panneerselvam,

Antony

et al. 2024

Energy Fuels

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Hydrothermally synthesized Ni3V2O8 nanoparticles with horny surfaces for HER and supercapacitor application

Cited by 15 publications

References 15 publications

Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality

Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality

Elevating Supercapacitor Performance of Co3O4-g-C3N4 Nanocomposites Fabricated via the Hydrothermal Method

CuO–V₂O₅ Composite vs Single-Phase Cu₂V₂O₇: Understanding the Synergy of Mixed-Metal Oxides in Customizing Their Properties for Improved Hydrogen Evolution Reaction

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Hydrothermally synthesized Ni3V2O8 nanoparticles with horny surfaces for HER and supercapacitor application

Cited by 15 publications

References 15 publications

Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality

Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality

Elevating Supercapacitor Performance of Co3O4-g-C3N4 Nanocomposites Fabricated via the Hydrothermal Method

CuO–V2O5 Composite vs Single-Phase Cu2V2O7: Understanding the Synergy of Mixed-Metal Oxides in Customizing Their Properties for Improved Hydrogen Evolution Reaction

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CuO–V₂O₅ Composite vs Single-Phase Cu₂V₂O₇: Understanding the Synergy of Mixed-Metal Oxides in Customizing Their Properties for Improved Hydrogen Evolution Reaction