cMOF Evidence Base
Electrochemistry Application — Revealing the effect of cobalt content and ligand exchange in the bimetallic Ni–Co MOF for stable supercapacitors with high energy density

Measurement evidence

Electrochemistry Application

Revealing the effect of cobalt content and ligand exchange in the bimetallic Ni–Co MOF for stable supercapacitors with high energy density · Raissa, Wulan Septiani N.L., Wustoni S. et al. · Journal of Power Sources · 2024 · 234423

12 measurement groups · 66 results

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

Cyclic voltammetry of asymmetric cell

Voltammetry

KNiCoPO4//AC asymmetric supercapacitor · Electrode

KNiCoPO4//AC cell in 2 M NaOH; 0-1.45 V; 1-10 mV s^-1

Geometry
asymmetric two-electrode cell
Context
KNiCoPO4 positive electrode with activated carbon negative electrode
Measurement source
p010 · 3.4 · Fig. 7a-b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4//AC active mass ratiom+/m- = 1:5——Text
Exact Reported		p010 · 3.4 · Fig. 7a
KNiCoPO4//AC cell voltage window0-1.45 V——Text
Exact Reported		p010 · 3.4 · Fig. 7b

Cyclic voltammetry

Voltammetry

KNiCoPO4 working electrode · Electrode

Three-electrode cell, 2 M NaOH, 0-0.45 V, scan-rate series

Geometry
KNiCoPO4 composite working electrode
Context
KNiCoPO4 composite electrode
Measurement source
p009 · 3.4 · Fig. 6a-b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4 anodic b-valueapproximately 0.56—approximatelyText
Approximate		p009 · 3.4 · Fig. 6b
KNiCoPO4 cathodic b-valueapproximately 0.52—approximatelyText
Approximate		p009 · 3.4 · Fig. 6b
KNiCoPO4 capacitive contribution range over scan rates29.8% at 0.5 mV s^-1 to 65.4% at 10 mV s^-1——Figure Axis
Approximate		p012 · Supplementary Information · Fig. S9
KNiCoPO4 CV oxidation peakaround 0.33 V—aroundText
Approximate		p009 · 3.4 · Fig. 6a
KNiCoPO4 CV reduction peakaround 0.22 V—aroundText
Approximate		p009 · 3.4 · Fig. 6a

Cyclic voltammetry

Voltammetry

MOF-based working electrode comparison series · Electrode

Three-electrode cell, 2 M NaOH, 0-0.45 V vs Ag/AgCl; representative comparative scan at 0.5 mV s^-1

Geometry
working electrode on Toray carbon paper; Pt counter; Ag/AgCl reference
Context
composite working electrodes containing MOF active material, CB, PVDF, and carbon paper
Measurement source
p006 · 3.2 · Fig. 3a; Fig. S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-M b-valueMarked as a best value within this paper0.92——Text
Rounded Reported		p006 · 3.2 · Fig. S5f
Ni-M b-value0.52——Text
Rounded Reported		p006 · 3.2 · Fig. S5f
NiCo-M (10:1) b-value0.51——Text
Rounded Reported		p006 · 3.2 · Fig. S5f
NiCo-M (1:1) b-value0.59——Text
Rounded Reported		p006 · 3.2 · Fig. S5f
NiCo-M (1:10) b-value0.83——Text
Rounded Reported		p006 · 3.2 · Fig. S5f
Ni-M CV oxidation peak0.38 V vs Ag/AgCl——Text
Rounded Reported		p006 · 3.2 · Fig. 3a
Ni-M CV reduction peak0.26 V vs Ag/AgCl——Text
Rounded Reported		p006 · 3.2 · Fig. 3a

GCD cycling stability of asymmetric cell

Galvanostatic cycling

KNiCoPO4//AC asymmetric supercapacitor · Electrode

5 A g^-1 for 5000 cycles

Geometry
asymmetric two-electrode cell
Context
KNiCoPO4 positive electrode with activated carbon negative electrode
Measurement source
p011 · 3.4 · Fig. 7f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4//AC coulombic efficiency after 5000 cyclesalmost 99%—almostText
Approximate		p011 · 3.4 · Fig. 7f
KNiCoPO4//AC capacitance retention after 5000 cycles99%——Text
Rounded Reported		p011 · 3.4 · Fig. 7f

GCD cycling stability

Galvanostatic cycling

KNiCoPO4 working electrode · Electrode

5 A g^-1 for 5000 cycles

Geometry
KNiCoPO4 composite working electrode
Context
KNiCoPO4 composite electrode
Measurement source
p010 · 3.4 · Fig. 6f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4 coulombic efficiency after 5000 cycles100%——Text
Rounded Reported		p010 · 3.4 · Fig. 6f
KNiCoPO4 capacity retention after 5000 cyclesMarked as a best value within this paper99%——Text
Rounded Reported		p010 · 3.4 · Fig. 6f

GCD cycling stability

Galvanostatic cycling

NiCo-M (10:1) electrode · Electrode

5 A g^-1 for 5000 cycles

Geometry
three-electrode MOF working electrode
Context
NiCo-M (10:1) composite electrode
Measurement source
p007 · 3.2 · Fig. 3f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
NiCo-M (10:1) coulombic efficiency after 5000 cycles101%——Text
Rounded Reported		p007 · 3.2 · Fig. 3f
NiCo-M (10:1) capacity retention after 5000 cycles97%——Text
Rounded Reported		p007 · 3.2 · Fig. 3f

Electrochemical impedance spectroscopy of asymmetric cell

Impedance spectroscopy

KNiCoPO4//AC asymmetric supercapacitor · Electrode

Open-circuit EIS, frequency range 100 kHz-0.01 Hz

Geometry
asymmetric two-electrode cell
Context
KNiCoPO4 positive electrode with activated carbon negative electrode
Measurement source
p011 · 3.4 · Fig. S10; Table S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4//AC RCT0.81 ohm——SI Table
Rounded Reported		p014 · Supplementary Information · Table S7
KNiCoPO4//AC Rs3.7 ohm——SI Table
Rounded Reported		p014 · Supplementary Information · Table S7
KNiCoPO4//AC full EIS fitting parametersRs=3.7 ohm; CPE-T=1.1e-3 F; RCT=0.81 ohm; W-R=0.99 ohm; chi-squared=0.00032876——SI Table
Exact Reported		p014 · Supplementary Information · Table S7

Electrochemical impedance spectroscopy

Impedance spectroscopy

KNiCoPO4 working electrode · Electrode

Nyquist plot fitted for Rs and RCT

Geometry
KNiCoPO4 composite working electrode
Context
KNiCoPO4 composite electrode
Measurement source
p010 · 3.4 · Fig. 6e; Table S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4 RCT0.18 ohm——SI Table
Rounded Reported		p012 · Supplementary Information · Table S5
KNiCoPO4 Rs1.7 ohm——SI Table
Rounded Reported		p012 · Supplementary Information · Table S5
KNiCoPO4 full EIS fitting parametersRs=1.7 ohm; CPE-T=2.9e-4 F; RCT=0.18 ohm; W-R=2.7 ohm; chi-squared=0.00016246——SI Table
Exact Reported		p012 · Supplementary Information · Table S5

Electrochemical impedance spectroscopy

Impedance spectroscopy

MOF-based working electrode comparison series · Electrode

Frequency range 100 kHz-0.01 Hz for MOF electrodes; fitted equivalent circuit with Rs, RCT, CPE, W

Geometry
three-electrode working electrodes
Context
composite working electrodes containing MOF active material, CB, PVDF, and carbon paper
Measurement source
p007 · 3.2 · Fig. 3e; Table S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-M RCT1.00 ohm——SI Table
Exact Reported		p009 · Supplementary Information · Table S3
Ni-M RCT0.50 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
NiCo-M (10:1) RCTMarked as a best value within this paper0.20 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
NiCo-M (1:1) RCT0.80 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
NiCo-M (1:10) RCT0.81 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
Co-M Rs2.1 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
Ni-M Rs2.3 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
NiCo-M (10:1) RsMarked as a best value within this paper1.8 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
NiCo-M (1:1) RsMarked as a best value within this paper1.8 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
NiCo-M (1:10) Rs1.9 ohm——SI Table
Rounded Reported		p009 · Supplementary Information · Table S3
MOF series full EIS fitting parametersTable S3: Rs/RCT/W-R/chi-squared are Ni-M 2.3/0.50/2.8/0.00015889; NiCo-M(10:1) 1.8/0.20/7.7/0.00061768; NiCo-M(1:1) 1.8/0.80/19/0.00093567; NiCo-M(1:10) 1.9/0.91/3.4/0.00074716; Co-M 2.1/1.00/4.7/0.00018301. CPE-T values are 5.8e-5, 2.1e-4, 8.4e-5, 2.2e-4, and 4.9e-5 F.——SI Table
Exact Reported		p009 · Supplementary Information · Table S3

Galvanostatic charge-discharge of asymmetric cell

Galvanostatic cycling

KNiCoPO4//AC asymmetric supercapacitor · Electrode

KNiCoPO4//AC cell in 2 M NaOH; 0.5-10 A g^-1

Geometry
asymmetric two-electrode cell
Context
KNiCoPO4 positive electrode with activated carbon negative electrode
Measurement source
p011 · 3.4 · Fig. 7c-e
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4//AC specific capacitance at 0.5 A g^-1Marked as a best value within this paper76 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC specific capacitance at 1 A g^-169 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC specific capacitance at 10 A g^-138 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC specific capacitance at 2 A g^-162 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC specific capacitance at 4 A g^-153 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC specific capacitance at 6 A g^-147 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC specific capacitance at 8 A g^-142 F g-1——Text
Exact Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC coulombic efficiency across current-density series100%——Text
Rounded Reported		p011 · 3.4 · Fig. 7d
KNiCoPO4//AC energy density at 7250 W kg^-111 Wh kg-1 at 7250 W kg-17250 W kg^-1—Text
Exact Reported		p011 · 3.4 · Fig. 7e
KNiCoPO4//AC energy density at 363 W kg^-1Marked as a best value within this paper22 Wh kg-1 at 363 W kg-1363 W kg^-1—Text
Exact Reported		p011 · 3.4 · Fig. 7e
KNiCoPO4//AC rate capability50%——Text
Rounded Reported		p011 · 3.4 · Fig. 7d

Galvanostatic charge-discharge

Galvanostatic cycling

KNiCoPO4 working electrode · Electrode

Three-electrode cell, 2 M NaOH, 0-0.45 V, 0.5-10 A g^-1

Geometry
KNiCoPO4 composite working electrode
Context
KNiCoPO4 composite electrode
Measurement source
p010 · 3.4 · Fig. 6c-d
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
KNiCoPO4 specific capacity at 0.5 A g^-1Marked as a best value within this paper522 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
KNiCoPO4 specific capacity at 1 A g^-1469 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
KNiCoPO4 specific capacity at 10 A g^-1238 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
KNiCoPO4 specific capacity at 2 A g^-1410 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
KNiCoPO4 specific capacity at 4 A g^-1344 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
KNiCoPO4 specific capacity at 6 A g^-1300 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
KNiCoPO4 specific capacity at 8 A g^-1265 C g-1——Text
Exact Reported		p010 · 3.4 · Fig. 6d
Table S6 KNiCoPO4 comparison capacity entryMarked as a best value within this paperKNiCoPO4 (Ni/Co=10:1), 2 M NaOH, 0-0.45 V, 522 C g^-1 at 0.5 A g^-10.5 A g^-1—SI Table
Exact Reported		p013 · Supplementary Information · Table S6

Galvanostatic charge-discharge

Galvanostatic cycling

MOF-based working electrode comparison series · Electrode

Three-electrode cell, 2 M NaOH, 0-0.45 V, current densities 0.5-10 A g^-1

Geometry
working electrode on Toray carbon paper; Pt counter; Ag/AgCl reference
Context
composite working electrodes containing MOF active material, CB, PVDF, and carbon paper
Measurement source
p006 · 3.2 · Fig. 3b-d; Fig. S6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co-M specific capacity at 0.5 A g^-146.3 C g-1——Text
Exact Reported		p006 · 3.2 · Fig. 3c
Ni-M specific capacity at 0.5 A g^-1318 C g-1——Text
Exact Reported		p006 · 3.2 · Fig. 3c
NiCo-M (10:1) specific capacity at 0.5 A g^-1Marked as a best value within this paper437 C g-1——Text
Exact Reported		p006 · 3.2 · Fig. 3c
NiCo-M (1:10) specific capacity at 0.5 A g^-1155 C g-1——Text
Exact Reported		p006 · 3.2 · Fig. 3c
NiCo-M (1:1) specific capacity at 0.5 A g^-1291 C g-1——Text
Exact Reported		p006 · 3.2 · Fig. 3c
Co-M rate capability41%——Text
Rounded Reported		p006 · 3.2 · Fig. 3d
Ni-M rate capability30%——Text
Rounded Reported		p006 · 3.2 · Fig. 3d
NiCo-M (10:1) rate capabilityabout 64%—visual estimate from plotted labelFigure Axis
Approximate		p007 · 3.2 · Fig. 3d
NiCo-M (1:1) rate capabilityMarked as a best value within this paperabout 71%—visual estimate from plotted labelFigure Axis
Approximate		p007 · 3.2 · Fig. 3d
NiCo-M (1:10) rate capabilityabout 66%—visual estimate from plotted labelFigure Axis
Approximate		p007 · 3.2 · Fig. 3d