cMOF Evidence Base
Electrochemistry Application — Morphology-driven electrochemical attributes of Cu-MOF: a high-performance anodic material for battery supercapacitor hybrids

Measurement evidence

Electrochemistry Application

Morphology-driven electrochemical attributes of Cu-MOF: a high-performance anodic material for battery supercapacitor hybrids · Shakeel N., Khan J., Al-Kahtani A.A. · RSC Advances · 2024 · 33941-33951

16 measurement groups · 28 results

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

b-value fitting and capacitive/diffusive contribution analysis

Q1 Cu-MOF composite working electrode · Electrode

Fitting from CV peak current versus scan rate; equations i(v)=k1v+k2v^1/2.

Geometry
three-electrode cell
Context
composite electrode using pristine Q1 active MOF
Measurement source
p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(e,f)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q1 b-value0.50——Text
Exact Reported		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(e)
Q1 capacitive contribution at 3 mV s^-17.0% faster kinetics at 3 mV s^-1——Text
Exact Reported		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(f)

b-value fitting and capacitive/diffusive contribution analysis

Q2 Cu-MOF composite working electrode · Electrode

Fitting from CV peak current versus scan rate; equations i(v)=k1v+k2v^1/2.

Geometry
three-electrode cell
Context
composite electrode using pristine Q2 active MOF
Measurement source
p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(e,f)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q2 b-value0.47——Text
Exact Reported		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(e)
Q2 capacitive contribution at 3 mV s^-1Marked as a best value within this paper15.6% faster kinetics at 3 mV s^-1——Text
Exact Reported		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(f)

Cyclic voltammetry (CV), three-electrode

Voltammetry

Q1 Cu-MOF composite working electrode · Electrode

1 M KOH electrolyte; potential range 0-0.7 V vs Hg/HgO; room temperature; scan rates 3-50 mV s^-1 shown.

Temperature
room temperature
Geometry
three-electrode cell; Cu-MOF composite working electrode on nickel foam
Context
composite electrode using pristine Q1 active MOF
Measurement source
p005-p006 / journal pages 33945-33946 · 4 Three-electrode configurations · Fig. 4(a,d)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q1 CV specific capacity at 3 mV s^-1511.6 C g^-1 at 3 mV s^-1——Text
Exact Reported		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(d)
Q1 CV specific capacity at 50 mV s^-1approximately 160 C g^-1 at 50 mV s^-1 from Fig. 4(d)—visual estimate from plotted markerFigure Axis
Approximate		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(d)

Cyclic voltammetry (CV), three-electrode

Voltammetry

Q2 Cu-MOF composite working electrode · Electrode

1 M KOH electrolyte; potential range 0-0.7 V vs Hg/HgO; room temperature; scan rates 3-50 mV s^-1 shown.

Temperature
room temperature
Geometry
three-electrode cell; Cu-MOF composite working electrode on nickel foam
Context
composite electrode using pristine Q2 active MOF
Measurement source
p005-p006 / journal pages 33945-33946 · 4 Three-electrode configurations · Fig. 4(b,d)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q2 CV specific capacity at 3 mV s^-1Marked as a best value within this paper695.7 C g^-1 at 3 mV s^-1——Text
Exact Reported		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(d)
Q2 CV specific capacity at 50 mV s^-1Marked as a best value within this paperapproximately 305 C g^-1 at 50 mV s^-1 from Fig. 4(d)—visual estimate from plotted markerFigure Axis
Approximate		p006 / journal page 33946 · 4 Three-electrode configurations · Fig. 4(d)

Cyclic voltammetry (CV), SI bare Ni-foam control

Voltammetry

bare nickel foam current collector · Electrode

Q2 electrode and bare Ni-foam compared at 3 mV s^-1.

Geometry
three-electrode control comparison
Context
bare current collector control compared with Q2 electrode
Measurement source
p003 · Supplementary Information · Figure S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Bare Ni-foam CV control response at 3 mV s^-1Bare Ni-foam plotted with Q2 at 3 mV s^-1; control current is much smaller than Q2 by visual inspection.—qualitative figure comparison onlyVisual Estimate
Qualitative		p003 · Supplementary Information · Figure S2

Cyclic voltammetry (CV), asymmetric device

Voltammetry

Q2 Cu-MOF//activated carbon hybrid device · Electrode

Potential sweep rates 3-100 mV s^-1; operational device window 0-1.7 V.

Geometry
Q2 Cu-MOF//activated carbon asymmetric device
Context
device composite using Q2 Cu-MOF
Measurement source
p008 / journal page 33948 · 5 Battery-supercapacitor hybrid configuration · Fig. 7(b)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Hybrid device operating potential window0 to 1.7 V——Text
Exact Reported		p008 / journal page 33948 · 5 Battery-supercapacitor hybrid configuration · Fig. 7

GCD cycling stability

Galvanostatic cycling

Q2 Cu-MOF//activated carbon hybrid device · Electrode

5000 consecutive GCD cycles at 16 A g^-1.

Geometry
Q2 Cu-MOF//activated carbon asymmetric device
Context
device composite using Q2 Cu-MOF
Measurement source
p009 / journal page 33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(c)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Hybrid device capacity retention after 5000 cyclesMarked as a best value within this paper97.95% after 5000 GCD cycles at 16 A g^-1——Text
Exact Reported		p009 / journal page 33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(c)

Electrochemical impedance spectroscopy (EIS) before/after cycling

Impedance spectroscopy

Q2 Cu-MOF//activated carbon hybrid device · Electrode

Nyquist plots before and after stability evaluation; equivalent circuit inset.

Geometry
Q2 Cu-MOF//activated carbon asymmetric device
Context
device composite using Q2 Cu-MOF
Measurement source
p009 / journal page 33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(d)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Hybrid device ESR after cycling0.42 Ohm after stability evaluation——Text
Exact Reported		p009 / journal page 33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(d)
Hybrid device ESR before cyclingMarked as a best value within this paper0.41 Ohm before stability evaluation——Text
Exact Reported		p009 / journal page 33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(d)

Galvanostatic charge-discharge (GCD), asymmetric device

Galvanostatic cycling

Q2 Cu-MOF//activated carbon hybrid device · Electrode

Potential window 0-1.7 V; current densities 1-16 A g^-1.

Geometry
Q2 Cu-MOF//activated carbon asymmetric device
Context
device composite using Q2 Cu-MOF
Measurement source
p008-p009 / journal pages 33948-33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 7(c); Fig. 8(a)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Hybrid device specific capacity at 16 A g^-1145.7 C g^-1 at 16 A g^-1——Text
Exact Reported		p008 / journal page 33948 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(a)
Hybrid device specific capacity at 1 A g^-1Marked as a best value within this paper317.3 C g^-1 at 1 A g^-1——Text
Exact Reported		p008 / journal page 33948 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(a)

GCD cycle-shape stability, real device

Galvanostatic cycling

Q2 Cu-MOF//activated carbon hybrid device · Electrode

First six and last six GCD cycles of the real-device stability test.

Geometry
Q2 Cu-MOF//activated carbon asymmetric device
Context
device composite using Q2 Cu-MOF
Measurement source
p005-p006 · Supplementary Information · Figures S4 and S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Real-device first and last six GCD cycles shown in SIFirst six and last six real-device GCD cycles are shown; captions provide no additional numeric retention beyond main Fig. 8(c).——Qualitative
Qualitative		p005-p006 · Supplementary Information · Figures S4 and S5

Specific energy and power calculation from GCD

Galvanostatic cycling

Q2 Cu-MOF//activated carbon hybrid device · Electrode

Specific energy and power calculated using reported equations for asymmetric device.

Geometry
Q2 Cu-MOF//activated carbon asymmetric device
Context
device composite using Q2 Cu-MOF
Measurement source
p008-p009 / journal pages 33948-33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(b); Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Hybrid device specific energy at 16 A g^-134.4 W h kg^-1 at 13,765 W kg^-1 and 16 A g^-1——Text
Exact Reported		p001 and p009 / journal pages 33941 and 33949 · Abstract; 5 Battery-supercapacitor hybrid configuration · Fig. 8(b)
Hybrid device specific energy at 1 A g^-1Marked as a best value within this paper74.9 W h kg^-1 at 850 W kg^-1 and 1 A g^-1——Text
Rounded Reported		p001 and p008-p009 / journal pages 33941 and 33948-33949 · Abstract; 5 Battery-supercapacitor hybrid configuration · Fig. 8(b); Table 2
Hybrid device energy retained at high power45.91% specific energy retained when specific power increased about 16 times——Text
Exact Reported		p009 / journal page 33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(b)
Hybrid device specific power at 16 A g^-1Marked as a best value within this paper13,765 W kg^-1 at 34.4 W h kg^-1 and 16 A g^-1——Text
Exact Reported		p001 and p008-p009 / journal pages 33941 and 33948-33949 · Abstract; 5 Battery-supercapacitor hybrid configuration · Fig. 8(b); Table 2
Hybrid device specific power at 1 A g^-1850 W kg^-1 at 74.9 W h kg^-1——Text
Exact Reported		p008-p009 / journal pages 33948-33949 · 5 Battery-supercapacitor hybrid configuration · Fig. 8(b)

Electrochemical impedance spectroscopy (EIS), Nyquist plot

Impedance spectroscopy

Q1 Cu-MOF composite working electrode · Electrode

Frequency range 0 to 0.1 MHz; amplitude 10 mV; high-frequency intercept used as ESR.

Geometry
three-electrode cell
Context
composite electrode using pristine Q1 active MOF
Measurement source
p007-p008 / journal pages 33947-33948 · 4 Three-electrode configurations · Fig. 6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q1 equivalent series resistance0.98 Ohm——Text
Exact Reported		p008 / journal page 33948 · 4 Three-electrode configurations · Fig. 6

Electrochemical impedance spectroscopy (EIS), Nyquist plot

Impedance spectroscopy

Q2 Cu-MOF composite working electrode · Electrode

Frequency range 0 to 0.1 MHz; amplitude 10 mV; high-frequency intercept used as ESR.

Geometry
three-electrode cell
Context
composite electrode using pristine Q2 active MOF
Measurement source
p007-p008 / journal pages 33947-33948 · 4 Three-electrode configurations · Fig. 6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q2 equivalent series resistanceMarked as a best value within this paper0.78 Ohm——Text
Exact Reported		p008 / journal page 33948 · 4 Three-electrode configurations · Fig. 6

Galvanostatic charge-discharge (GCD), three-electrode

Galvanostatic cycling

Q1 Cu-MOF composite working electrode · Electrode

1 M KOH electrolyte; voltage range 0.6 V; current densities 1-10 A g^-1 shown.

Geometry
three-electrode cell
Context
composite electrode using pristine Q1 active MOF
Measurement source
p006-p007 / journal pages 33946-33947 · 4 Three-electrode configurations · Fig. 5(a,c,d)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q1 GCD specific capacity at 10 A g^-1approximately 210 C g^-1 at 10 A g^-1 from Fig. 5(d)—visual estimate from plotted markerFigure Axis
Approximate		p007 / journal page 33947 · 4 Three-electrode configurations · Fig. 5(d)
Q1 GCD specific capacity at 1 A g^-1462.0 C g^-1 at 1 A g^-1——Text
Exact Reported		p007 / journal page 33947 · 4 Three-electrode configurations · Fig. 5(d)

Galvanostatic charge-discharge (GCD), three-electrode

Galvanostatic cycling

Q2 Cu-MOF composite working electrode · Electrode

1 M KOH electrolyte; voltage range 0.6 V; current densities 1-10 A g^-1 shown.

Geometry
three-electrode cell
Context
composite electrode using pristine Q2 active MOF
Measurement source
p006-p007 / journal pages 33946-33947 · 4 Three-electrode configurations · Fig. 5(b,c,d)
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q2 GCD specific capacity at 10 A g^-1Marked as a best value within this paper331.0 C g^-1 at 10 A g^-1; 55.70% of maximum storage capability——Text
Exact Reported		p001 and p007 / journal pages 33941 and 33947 · Abstract; 4 Three-electrode configurations · Fig. 5(d)
Q2 GCD specific capacity at 1 A g^-1Marked as a best value within this paper594.2 C g^-1 at 1 A g^-1——Text
Exact Reported		p001 and p007 / journal pages 33941 and 33947 · Abstract; 4 Three-electrode configurations · Fig. 5(d)

GCD cycling stability, Q2 electrode

Galvanostatic cycling

Q2 Cu-MOF composite working electrode · Electrode

Q2 electrode stability test over 3000 GCD cycles.

Geometry
three-electrode Q2 working electrode
Context
Q2 Cu-MOF composite electrode
Measurement source
p004 · Supplementary Information · Figure S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Q2 electrode capacity retention after 3000 GCD cyclesMarked as a best value within this paper98.8% after 3000 GCD cycles—read from SI rendered figure labelFigure Axis
Rounded Reported		p004 · Supplementary Information · Figure S3