Cobalt–nickel composite films synthesized by chemical bath deposition method as an electrode material for supercapacitors

Kandalkar, S.G.; Lee, Hae Min; Seo, Seung Hye; Lee, Kangtaek; Kim, Chang Koo

doi:10.1007/s10853-010-5174-0

Cited by 26 publications

(6 citation statements)

References 26 publications

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“…Various morphologies of Co 3 O 4 including nanosheets, 25 nanopaticles, 37 hollow spheres 21 and nanotubes 24 have been reported for supercapacitor applications. The capacitance of those previously reported is typically in the range 90-580 F g 21 and our sample is even higher.…”

Section: Function As Supercapacitor Electrodesmentioning

confidence: 99%

Hierarchical Co₃O₄nanosheet@nanowire arrays with enhanced pseudocapacitive performance

et al. 2012

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Electrodes with hierarchical nanoarchitectures could offer many opportunities for improved performance in energy storage. Herein, we report the synthesis of a hierarchical Co 3 O 4 nanosheet@nanowire arrays (NSWAs) by a facile hydrothermal and annealing treatment. The synthesis of Co 3 O 4 NSWAs, composed of Co 3 O 4 nanowires standing on nanosheet arrays, was achieved in two steps. The formation of nanosheet arrays on nickel foam and the growth of the nanowires around the sheets in the form of nanowires was achieved by studying the morphology evolution process upon reaction time. This novel structure of the material provides a high specific capacitance of 715 F g 21 and remarkable rate capability (at least 69% can be maintained when the current density increased 6 times). Furthermore, the excellent cycling performance (100% after 1000 cycles) is another essential factor in making the Co 3 O 4 hierarchical NSWAs an advanced supercapacitor material.

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Section: Function As Supercapacitor Electrodesmentioning

confidence: 99%

Hierarchical Co₃O₄nanosheet@nanowire arrays with enhanced pseudocapacitive performance

et al. 2012

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“…It displays a semicircle in the high frequency and a linear curve in the low-frequency region. The semicircle in the high-frequency region is related to the reaction kinetics at the electrode and electrolyte interfaces [4,8,26,27]. The linear curve at the low-frequency region can be attributed to the diffusion controlled process in the electrolyte.…”

Section: Electrochemical Impedance Analysis (Eis Studies):-mentioning

confidence: 99%

Synthesis of Cobalt Sulphide Thin Film Electrode by Modified Chemical Bath Deposition Route and Its Supercapacitors Performance.

Sonawane¹,

Baviskar²,

Patil³

2016

IJAR

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Cobalt Sulphide (CoS) thin films were synthesized on stainless steel (SS) substrates using a modified chemical bath deposition route. The supercapacitive properties of this compound were studied by cyclic voltammetry, galvanostatic charge-discharge test and electrochemical impedance spectroscopy. The as-prepared CoS thin film electrode has excellent electrochemical capacitive characteristic with potential range 0 to +0.7 V Vs Ag/AgCl at constant concentration 2M KOH solution. In cyclic voltammetry (CV) studies, effect of scan rate reveal that the CoS electrodes yield values of 531 Fgm-1 and 244 Fgm-1 for specific capacitance at scan rates of 10 mVs-1 and 100 mVs-1 respectively. Effect of concentration of electrolyte shows that, the specific capacitances values are increased from 60 to 351 Fgm-1 with increasing the concentration 1 M to 3 M of KOH. Stability studies at 50 mVs-1 scan rate reveal that the specific capacitance values are decreased from 322 to 186 Fgm-1 with increasing number of scan cycle. Charge-discharge behaviors have been observed that the supercapacitive parameters such as, specific energy (S.E.), specific power (S.P.) and coulombic efficiency (η%) are 11.4 Whkg −1 , 7.4 KWkg −1 and 31%, respectively. Impedance spectroscopic analysis revealed that the equivalent series resistance (ESR) is 1.8 Ω at the imaginary axis.

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“…A bell-shaped discharging curve of the E-NCP4 electrode demonstrates intercalation type pseudocapacitive behavior of the material, where the charge storage mechanism is based on the deep electrolytic ion intercalation and surface redox reactions. [68][69][70] Moreover, to investigate the intercalative charge storage mechanism of nickel-cobalt phosphate electrodes, an ex situ XPS analysis of pristine, charged (0.4 V/SCE), and discharged (0 V/SCE) nickel-cobalt phosphate (E-NCP4) electrodes were carried out (Fig. S11 †).…”

Section: Electrochemical Pseudocapacitive Performance Of Nickel-cobal...mentioning

confidence: 99%

Intercalation-type pseudocapacitive clustered nanoparticles of nickel–cobalt phosphate thin films synthesized via electrodeposition as cathode for high-performance hybrid supercapacitor devices

et al. 2022

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Cobalt–nickel composite films synthesized by chemical bath deposition method as an electrode material for supercapacitors

Cited by 26 publications

References 26 publications

Hierarchical Co₃O₄nanosheet@nanowire arrays with enhanced pseudocapacitive performance

Hierarchical Co₃O₄nanosheet@nanowire arrays with enhanced pseudocapacitive performance

Synthesis of Cobalt Sulphide Thin Film Electrode by Modified Chemical Bath Deposition Route and Its Supercapacitors Performance.

Intercalation-type pseudocapacitive clustered nanoparticles of nickel–cobalt phosphate thin films synthesized via electrodeposition as cathode for high-performance hybrid supercapacitor devices

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Cobalt–nickel composite films synthesized by chemical bath deposition method as an electrode material for supercapacitors

Cited by 26 publications

References 26 publications

Hierarchical Co3O4nanosheet@nanowire arrays with enhanced pseudocapacitive performance

Hierarchical Co3O4nanosheet@nanowire arrays with enhanced pseudocapacitive performance

Synthesis of Cobalt Sulphide Thin Film Electrode by Modified Chemical Bath Deposition Route and Its Supercapacitors Performance.

Intercalation-type pseudocapacitive clustered nanoparticles of nickel–cobalt phosphate thin films synthesized via electrodeposition as cathode for high-performance hybrid supercapacitor devices

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Hierarchical Co₃O₄nanosheet@nanowire arrays with enhanced pseudocapacitive performance

Hierarchical Co₃O₄nanosheet@nanowire arrays with enhanced pseudocapacitive performance