Electrochemistry Application — A conductive anionic Co-MOF cage with zeolite framework for supercapacitors

Measurement evidence

Electrochemistry Application

A conductive anionic Co-MOF cage with zeolite framework for supercapacitors · Du W., Bai Y.-L., Yang Z. et al. · Chinese Chemical Letters · 2020 · 2309-2313

5 measurement groups · 39 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Cyclic voltammetry

Co-MOF on Ni foam · Electrode

CHI660E workstation; three-electrode cell; 3.0 mol/L KOH; Pt counter; Hg/HgO reference; potential range 0.0-0.5 V; scan rates 5-200 mV/s.

Geometry
Ni-foam-grown Co-MOF working electrode, no conductive additives or binder
Context
pristine Co-MOF electrode control
Measurement source
main p.3 · Electrochemical tests · Fig. 4a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource

Cyclic voltammetry of CTAB series

Co-CTAB-6 · Electrode

CV curves at 10 mV/s for Co-MOF and Co-CTAB-1/2/4/6/8 in 3 mol/L KOH; oxidation peak currents and ratios tabulated.

Geometry
Ni foam working electrodes
Context
CTAB-modified Co-MOF series compared with pristine Co-MOF
Measurement source
main p.4 · Results and discussion · Fig. 6a, Table 1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-CTAB-1 oxidation peak current at 0.35 V2.85Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-1 oxidation peak current at 0.425 V3.27Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-1 oxidation peak current ratio1.14737Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-2 oxidation peak current at 0.35 V3.98Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-2 oxidation peak current at 0.425 V4.83Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-2 oxidation peak current ratio1.21357Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-4 oxidation peak current at 0.35 VMarked as a best value within this paper4.39Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-4 oxidation peak current at 0.425 V5.55Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-4 oxidation peak current ratio1.26424Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-6 oxidation peak current at 0.35 V3.59Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-6 oxidation peak current at 0.425 VMarked as a best value within this paper7.12Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-6 oxidation peak current ratio1.98329Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-8 oxidation peak current at 0.35 V2.39Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-8 oxidation peak current at 0.425 V5.22Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-8 oxidation peak current ratioMarked as a best value within this paper2.1841Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-MOF oxidation peak current at 0.35 V3.54Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-MOF oxidation peak current at 0.425 V4.73Table
Exact Reported
main p.3 · Results and discussion · Table 1
Co-MOF oxidation peak current ratio1.33616Table
Exact Reported
main p.3 · Results and discussion · Table 1
first oxidation peak potentialaround 0.35 VText
Approximate
main p.4 · Results and discussion · Fig. 6a, Table 1
second oxidation peak potentialaround 0.425 VText
Approximate
main p.4 · Results and discussion · Fig. 6a, Table 1
common reduction peak potentialnearly 0.294 VText
Approximate
main p.4 · Results and discussion · Fig. 6a

Cycling stability / capacitance retention

Co-CTAB-6 · Electrode

Co-MOF and Co-CTAB-6 capacitance retention after 3000 cycles.

Geometry
Ni foam working electrodes
Context
Co-CTAB-6 compared with pristine Co-MOF
Measurement source
main p.5 · Results and discussion · Fig. 7b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-CTAB-6 capacitance retention after 3000 cyclesMarked as a best value within this paper77.92% after 3000 cyclesText
Exact Reported
main p.5 · Results and discussion · Fig. 7b
Co-MOF capacitance retention after 3000 cycles64.04% after 3000 cyclesText
Exact Reported
main p.5 · Results and discussion · Fig. 7b

Galvanostatic charge-discharge

Co-MOF on Ni foam · Electrode

Three-electrode cell in 3.0 mol/L KOH; potential range 0.0-0.5 V; current densities reported from 0.5 to 20 A/g.

Geometry
Ni-foam-grown Co-MOF working electrode
Context
pristine Co-MOF electrode control
Measurement source
main p.2 · Electrochemical tests · Fig. 4b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-MOF specific capacitance at 0.5 A/gMarked as a best value within this paper240 F/g at 0.5 A/gText
Rounded Reported
main p.3 · Results and discussion · Fig. 4b
Co-MOF specific capacitance at 10 A/g144 F/g at 10 A/gText
Rounded Reported
main p.3 · Results and discussion · Fig. 4b
Co-MOF specific capacitance at 1 A/g236.2 F/g at 1 A/gTable
Exact Reported
main p.3 · Results and discussion · Table 1
Co-MOF capacitance retention at 10 A/g versus 1 A/g61%Text
Rounded Reported
main p.3 · Results and discussion · Fig. 4b

Galvanostatic charge-discharge/specific capacitance of CTAB series

Co-CTAB-6 · Electrode

Specific capacitance at 1 A/g for Co-MOF and CTAB series from Table 1; selected rate values from main text and Fig. 7a.

Geometry
Ni foam working electrodes
Context
CTAB-modified Co-MOF series compared with pristine Co-MOF
Measurement source
main p.4 · Results and discussion · Fig. 6b, Fig. 7a, Table 1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-CTAB-1 specific capacitance at 1 A/g208.2 F/gTable
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-2 specific capacitance at 1 A/g210.0 F/gTable
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-4 specific capacitance at 1 A/g285.6 F/gTable
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-6 specific capacitance at 0.5 A/gMarked as a best value within this paper360 F/g at 0.5 A/gText
Rounded Reported
main p.5 · Results and discussion · Fig. 6b
Co-CTAB-6 specific capacitance at 10 A/g158 F/g at 10 A/gText
Rounded Reported
main p.5 · Results and discussion · Fig. 7a
Co-CTAB-6 specific capacitance at 1 A/gMarked as a best value within this paper334.0 F/gTable
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-6 capacitance retention at 10 A/g versus 1 A/g47%Text
Rounded Reported
main p.5 · Results and discussion · Fig. 7a
Co-CTAB-8 specific capacitance at 1 A/g286.4 F/gTable
Exact Reported
main p.3 · Results and discussion · Table 1
Co-CTAB-6 specific capacitance at 15 A/gapproximately 125 F/g from Fig. 7avisual estimateVisual Estimate
Approximate
main p.4 · Results and discussion · Fig. 7a
Co-CTAB-6 specific capacitance at 2 A/gapproximately 285 F/g from Fig. 7avisual estimateVisual Estimate
Approximate
main p.4 · Results and discussion · Fig. 7a
Co-MOF specific capacitance at 15 A/gapproximately 120 F/g from Fig. 7avisual estimateVisual Estimate
Approximate
main p.4 · Results and discussion · Fig. 7a
Co-MOF specific capacitance at 2 A/gapproximately 215 F/g from Fig. 7avisual estimateVisual Estimate
Approximate
main p.4 · Results and discussion · Fig. 7a