Spinel CuCo<sub>2</sub>O<sub>4</sub>Nanoparticles: Facile One-Step Synthesis, Optical, and Electrochemical properties

Silambarasan, M.; Padmanathan, N.; Ramesh, P.; Geetha, D.

doi:10.1088/2053-1591/3/9/095021

Cited by 71 publications

(19 citation statements)

References 48 publications

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“…35,36 C=NH + is present at around 2346 cm -1. 24 37 The observed functional groups for copper cobaltite are Co-O (560.5 cm -1 ) and Cu-O (668.9 cm -1 ).…”

Section: Identification Of Functional Groupsmentioning

confidence: 98%

“…The spectrum of C1s has been deconvoluted to three different forms of carbon concerning their binding energies. 24 Co2p has two main spectrums at binding energies of 779.7 eV and 795.2 eV, which are associated with Co2p 3/2 and Co2p 1/2 , respectively. 40 O1s spectrum at different binding energies of 529.6 eV, 531.4 eV, 533.2 eV can be assigned to metaloxygen bonding (oxygen bonding with Cu and Co), surface oxygen, oxygen species associated with hydroxyl groups (can say chemically and physically bonded water), respectively ( figure S2.b).…”

Section: Xps Analysismentioning

confidence: 99%

“…Presence of satellite peaks at 941.8 and 962.1 eV are presumably associated with Cu 2+ spin orbit (figure S2.d). 24 Co2p has two main spectrums at binding energies of 779.7 eV and 795.2 eV, which are associated with Co2p 3/2 and Co2p 1/2 , respectively. The resolved spectrum at 779.7 eV and 795.1 eV has been assigned to Co 3+ .…”

Section: Xps Analysismentioning

confidence: 99%

“…20 A binary composite of Polyaniline and CuCo 2 O 4 may exhibit better electrochemical behavior. 24 The idea of making a ternary system sprang up after observing various researches related to ternary systems. 21 Very few works have been reported on supercapacitor electrodes made up of copper cobaltite & polyaniline/ copper cobaltite.…”

Section: Introductionmentioning

confidence: 99%

“…23 Silambarasan et al reported that spinel CuCo 2 O 4 nanoparticle-based electrode had a specific capacitance of 290 Fg -1. 24 The idea of making a ternary system sprang up after observing various researches related to ternary systems. The specific capacitance of ternary cobalt ferrite/graphene/ polyaniline was found to be 1133.3 Fg -1 by Pan Xiong et al 25 33 In the above reported literature, ternary systems exhibited the highest specific capacitances compared to single and binary systems.…”

Section: Introductionmentioning

confidence: 99%

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Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Das

Verma

2019

Int J Energy Res

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A new system based on Polyaniline-Acetylene black-Copper cobaltite composite has been prepared and affirmed by XRD, UV, SEM, FTIR, and EDS characterizations. The rod-like texture of ternary hybrid system offered excellent electrochemical activity in comparison to single and binary systems. CV and CD results revealed outstanding redox behavior of the ternary hybrid electrodes. Ternary electrode (PACC) presented the highest specific capacitance value of 690 F/g at 1 mA/cm 2 current density. PACC electrode based symmetric supercapacitor had a specific capacitance of 137.25 Fg -1 at 1 mA/cm 2 of current density. PACC symmetric supercapacitor had the highest specific power and specific energy of 3308.85 W.kg -1 and 19.064 Wh.kg -1 , respectively. The ternary system provides less charge transfer resistance values compared to all other systems. Thermal stability of the ternary composite is way better than polyaniline, which is due to the contribution of copper cobaltite and acetylene black. The overwhelming characteristics of the ternary hybrid composite bring it to the limelight as an excellent candidate in the field of supercapacitors.

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“…35,36 C=NH + is present at around 2346 cm -1. 24 37 The observed functional groups for copper cobaltite are Co-O (560.5 cm -1 ) and Cu-O (668.9 cm -1 ).…”

Section: Identification Of Functional Groupsmentioning

confidence: 98%

Section: Xps Analysismentioning

confidence: 99%

Section: Xps Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Das

Verma

2019

Int J Energy Res

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Diffusion kinetics of CuCo₂O₄ nanorods for next‐generation solid state sodium‐ion hybrid supercapacitor

et al. 2023

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In the current study, we report a straightforward and affordable sol‐gel preparation approach for the fabrication of spinel CuCo2O4 nanorods for sodium ion‐based hybrid supercapacitor. The morphological and structural analysis shows that appropriate purity nanorods of CuCo2O4 are formed with good stoichiometry. The electrochemical study of CuCo2O4 nanorods reveals that the electrode has highest specific capacitance of 367 F g−1 at 1 A g−1 in 1 M Na2SO4 electrolyte. Evaluation of the diffusion kinetics of sodium ions through detailed electrochemical evaluations of cyclic voltammogram (CV) showing the charge storage kinetics of CuCo2O4 is primarily performed through the diffusive limited mechanisms, suggesting the battery‐like behavior of CuCo2O4 electrode. Hybrid supercapacitor (HSC) device is fabricated by utilizing CuCo2O4 for positive and reduced graphene oxide (rGO) for negative electrodes material. The polymer gel electrolyte is used in the form of hydrogel membrane made of PVA and Na2SO4, and the HSC device (rGO || CuCo2O4) exhibits energy density of 9.18 Wh kg−1. Therefore, sodium‐ion hybrid supercapacitor electrode materials for this investigation are established using a comprehensive electrochemical kinetics.

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Facile preparation of the spinel CuCo2O4 Application to hydrogen photo-production

et al. 2021

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Spinel CuCo₂O₄Nanoparticles: Facile One-Step Synthesis, Optical, and Electrochemical properties

Cited by 71 publications

References 48 publications

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Diffusion kinetics of CuCo₂O₄ nanorods for next‐generation solid state sodium‐ion hybrid supercapacitor

Facile preparation of the spinel CuCo2O4 Application to hydrogen photo-production

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Spinel CuCo2O4Nanoparticles: Facile One-Step Synthesis, Optical, and Electrochemical properties

Cited by 71 publications

References 48 publications

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Polyaniline‐Acetylene black‐Copper cobaltite based ternary hybrid material with enhanced electrochemical properties and its use in supercapacitor electrodes

Diffusion kinetics of CuCo2O4 nanorods for next‐generation solid state sodium‐ion hybrid supercapacitor

Facile preparation of the spinel CuCo2O4 Application to hydrogen photo-production

Contact Info

Product

Resources

About

Spinel CuCo₂O₄Nanoparticles: Facile One-Step Synthesis, Optical, and Electrochemical properties

Diffusion kinetics of CuCo₂O₄ nanorods for next‐generation solid state sodium‐ion hybrid supercapacitor