Characterisation and electrochemical behaviour of electrodeposited Cu–Fe foams applied as pseudocapacitor electrodes

Lange, Günter; Eugénio, S.; Duarte, R.G.; Silva, T.M.; Carmezim, M.J.; Montemor, M.F.

doi:10.1016/j.jelechem.2014.10.025

Cited by 25 publications

(15 citation statements)

References 21 publications

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“…In another paper, Mössbauer studies were performed specifically on the CuFe alloy in powder form with a 72 at% Fe [28]. A paper on the electrodeposition of Cu-rich CuFe thin foams for supercapacitor electrodes was concentrated on the specific capacitance, the electrochemical response and the effect of thermal conditioning [29]. Finally, the effect of magnetic fields parallel to the electrode surface during deposition on the morphology and composition of the thin films has been reported [30].…”

Section: Introductionmentioning

confidence: 99%

Parametric aqueous electrodeposition study and characterization of Fe–Cu films

Dislaki

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Pellicer

2017

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Parametric aqueous electrodeposition study and characterization of Fe–Cu films

Dislaki

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Pellicer

2017

Electrochimica Acta

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“…6c) demonstrated that these electrodes had two time constants; one was in the frequency range from 100 to 1000 Hz and another one was at lower frequencies (~0.1Hz). Furthermore, the diameter of the capacitive semicircle at high frequencies of Co3O4/NiO electrode was smaller than that of -Co(OH)2/-Ni(OH)2 electrode, which indicated the former had lower resistance[61][62][63]. All the analysis above displays that the Co3O4/NiO electrode has lower charge transfer resistance and ion diffusion resistance than that of -Co(OH)2/-Ni(OH)2 electrode.The C-V tests of Co3O4/NiO and -Co(OH)2/-Ni(OH)2 electrode were performed under the same scan rate, and the results are showed inFig.…”

mentioning

confidence: 86%

Synthesis of Co3O4/NiO nanofilms and their enhanced electrochemical performance for supercapacitor application

Zuo

Song

et al. 2016

Applied Surface Science

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Transition metallic oxides have attracted considerable attention for supercapacitor applications because of their superior electrochemical performance at relatively low cost. Co3O4/NiO nanofilms were successfully prepared by calcination of precursor -Co(OH)2/-Ni(OH)2. XRD, XPS, SEM and TEM techniques were used to characterize the composition and morphology of as-prepared samples. The results demonstrated that Co3O4/NiO nanofilms presented graphene-like morphology with shrinkage and wrinkles. The Brunauer-Emmett-Teller (BET) measurement showed that specific surface area of Co3O4/NiO was 176.5 m 2 /g. Electrochemical properties tests indicated that the Co3O4/NiO nanofilms had a higher specific capacitance and better rate capability than that of precursor -Co(OH)2/-Ni(OH)2 at high current density. As to the cycling performance, the specific capacitance of Co3O4/NiO electrode would first increase from 556 F/g to 710 F/g quickly at 2 A/g after 80 cycles and then remained stable. Therefore, compared with that of precursor -Co(OH)2/-Ni(OH)2, the capacitance performance of as-prepared Co3O4/NiO nanofilms was improved after calcination. The possible reason for the enhancement of capacitance performance was discussed.

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“…A high specific capacitance was obtained at a current density of 1 mA/cm 2 , which was better than those of the electrodes made from Cu-Fe foams. CuO on copper foam and Cu-Ni foam reported in Table 2 [16,19,20]. for the foams deposited at 2 A/cm 2 during 180 s. The cyclic stability of the resulting foam was appropriate, showing a capacitance retention of 92.8 % after 2000 cycling tests.…”

Section: Supercapacitor Electrochemical Characterizationmentioning

confidence: 96%

NANOSTRUCTURED Ni-Cu FOAM ELECTRODEPOSITED ON A COPPER SUBSTRATE APPLIED AS SUPERCAPACITOR ELECTRODE

Mirzaee¹,

Dehghanian²

2018

Acta Metall Slovaca

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The applicability of nickel-copper metallic foams as a current collector was investigated for supercapacitor. A comprehensive characterization of Ni-Cu based foam was studied and the analysis of their structural, chemical, and electrochemical properties was evaluated. Structural characteristics and electrochemical methods were used to examine the surface morphology, and surface-chemical composition of the materials. The foams deposited at the time deposition of 180s exhibited dual-porosities (macro and mesopores) with pores ranging from13 to16 μm and the branch size ranged from 25 to 50 nm. Ni-Cu foam electrodes are employed as current collector for supercapacitor. Their usefulness as current collector was evaluated by well-defined experimental conditions using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge and discharge (GCD) techniques. The outcome of these experiments demonstrated that the Ni-Cu foams which was synthesized at the time deposition of 180s had pseudocapacitive behavior. The best value for specific capacitance which was calculated from GCD was (536 F/g at 1 mA/cm2) for the Ni-Cu foams deposited at 2 A/cm2 for 180 s. The Ni-Cu foam sustained a current density of 15 mA/cm2 after 2000 cycles without significant loss of supercapacitor activity.

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Characterisation and electrochemical behaviour of electrodeposited Cu–Fe foams applied as pseudocapacitor electrodes

Cited by 25 publications

References 21 publications

Parametric aqueous electrodeposition study and characterization of Fe–Cu films

Parametric aqueous electrodeposition study and characterization of Fe–Cu films

Synthesis of Co3O4/NiO nanofilms and their enhanced electrochemical performance for supercapacitor application

NANOSTRUCTURED Ni-Cu FOAM ELECTRODEPOSITED ON A COPPER SUBSTRATE APPLIED AS SUPERCAPACITOR ELECTRODE

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