cMOF Evidence Base
Electrochemistry Application — Self-assembled Mo doped Ni-MOF nanosheets based electrode material for high performance battery-supercapacitor hybrid device

Measurement evidence

Electrochemistry Application

Self-assembled Mo doped Ni-MOF nanosheets based electrode material for high performance battery-supercapacitor hybrid device · Li Q., Guo H., Xue R. et al. · International Journal of Hydrogen Energy · 2020 · 20820-20831

5 measurement groups · 32 results

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

CV, GCD and EIS of activated carbon electrode

Impedance spectroscopyVoltammetryGalvanostatic cycling

Activated carbon negative electrode · Electrode

AC negative electrode tested in 3 M KOH; SI reports same electrode-sheet preparation method as positive electrode.

Temperature
about 298
Geometry
Nickel foam supported AC electrode.
Context
Non-MOF device component.
Measurement source
main p.7, article p.20826 · Electrochemical performance · Figs. S7-S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Activated carbon electrode capacitance at 1 A g^-1370 F g^-1 at 1 A g^-1——Text
Exact Reported		main p.7, article p.20826 · Electrochemical performance · Figs. S7-S9

Two-electrode battery-supercapacitor hybrid device CV, GCD and cycling

VoltammetryGalvanostatic cycling

M-NMN-1//AC BSH · Electrode

M-NMN-1//AC BSH in 3.0 M KOH; voltage window optimised to 0-1.6 V; cycling evaluated at 5 A g^-1.

Temperature
about 298
Geometry
M-NMN-1 positive electrode and AC negative electrode, charge-balanced mass ratio positive/negative = 0.47.
Context
Application device using Mo-doped MOF positive electrode.
Measurement source
main p.9, article p.20828 · Battery-supercapacitor hybrid device · Fig. 7; Table 1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
M-NMN-1//AC BSH specific capacitance at 1 A g^-1Marked as a best value within this paper165 F g^-1 at 1 A g^-1——Text
Exact Reported		main p.8, article p.20827 · Battery-supercapacitor hybrid device · Fig. 7e
M-NMN-1//AC BSH specific capacitance at 2, 5, 8 and 10 A g^-1130, 101, 90 and 83 F g^-1 at 2, 5, 8 and 10 A g^-1——Text
Exact Reported		main p.8, article p.20827 · Battery-supercapacitor hybrid device · Fig. 7e
M-NMN-1//AC BSH last-ten-cycle retention annotation92.94%——Figure Axis
Rounded Reported		main p.9, article p.20828 · Battery-supercapacitor hybrid device · Fig. 7f
M-NMN-1//AC BSH capacitance retention after 20,000 cyclesMarked as a best value within this paper92.9% after 20,000 cycles——Table
Exact Reported		main p.10, article p.20829 · Table 1 · Table 1
M-NMN-1//AC BSH energy densityMarked as a best value within this paper59 Wh kg^-1——Table
Exact Reported		main p.10, article p.20829 · Table 1 · Table 1
Device positive/negative active mass ratio0.47——Text
Exact Reported		main p.8, article p.20827 · Battery-supercapacitor hybrid device · Fig. 7
M-NMN-1//AC BSH power densityMarked as a best value within this paper802.1 W kg^-1——Table
Exact Reported		main p.10, article p.20829 · Table 1 · Table 1
Selected device voltage windowMarked as a best value within this paper0-1.6 V——Text
Exact Reported		main p.8, article p.20827 · Battery-supercapacitor hybrid device · Fig. 7c

Electrode preparation for three-electrode testing

M-NMN-1 · Electrode

Active materials, acetylene black and PTFE mixed at 8:1.5:0.5; coated on 1 x 1 cm2 nickel foam; 0.8 mg active material.

Temperature
about 298
Geometry
Nickel foam 1 x 2 cm2 current collector, 1 x 1 cm2 coating area.
Context
Doped MOF electrode with conductive carbon and PTFE binder.
Measurement source
SI text p.1 · Electrochemical Measurements
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Active material mass on positive working electrode0.8 mg——Text
Exact Reported		SI text p.1 · Electrochemical Measurements

CV kinetic analysis, Dunn method, GCD rate testing and cycling stability

VoltammetryGalvanostatic cycling

M-NMN-1 · Electrode

M-NMN-1 tested at scan rates 5 to 80 mV s^-1; GCD at current densities 1 to 10 A g^-1; cycling at 5 A g^-1 for 20,000 cycles.

Temperature
about 298
Geometry
Three-electrode M-NMN-1 working electrode in 3 M KOH.
Context
Mo-doped target sample.
Measurement source
main p.8, article p.20827 · Electrochemical performance · Fig. 6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
M-NMN-1 cathodic b-value behaviourb value approaches 0.5 when cathodic peak potential is 0.2-0.3 V—potential range 0.2-0.3 VText
Approximate		main p.6, article p.20825 · Electrochemical performance · Fig. 6b
Capacitive contribution at 10 mV s^-135%——Figure Axis
Rounded Reported		main p.8, article p.20827 · Electrochemical performance · Fig. 6d
Capacitive contribution at 20 mV s^-142%——Figure Axis
Rounded Reported		main p.8, article p.20827 · Electrochemical performance · Fig. 6d
Capacitive contribution at 50 mV s^-1Marked as a best value within this paper58%——Text
Exact Reported		main p.7, article p.20826 · Electrochemical performance · Fig. 6d
Capacitive contribution at 5 mV s^-131%——Text
Exact Reported		main p.7, article p.20826 · Electrochemical performance · Fig. 6c-d
Capacitive contribution at 8 mV s^-133%——Figure Axis
Rounded Reported		main p.8, article p.20827 · Electrochemical performance · Fig. 6d
M-NMN-1 electrode capacity retention after 20,000 cyclesMarked as a best value within this paper95.8% after 20,000 cycles at 5 A g^-1——Figure Axis
Rounded Reported		main p.8, article p.20827 · Electrochemical performance · Fig. 6f

CV, galvanostatic charge-discharge and electrochemical impedance spectroscopy

Impedance spectroscopyVoltammetryGalvanostatic cycling

M-NMN-1 · Electrode

Three-electrode system in 3 M KOH aqueous electrolyte; CV comparison at 20 mV s^-1; GCD at varied current densities; EIS at open circuit from 100 kHz to 0.01 Hz.

Temperature
about 298
Geometry
Working electrode on nickel foam, platinum counter electrode, saturated calomel reference electrode.
Context
Pristine Ni-MOF control compared with Mo-doped M-NMN-1/2/3 electrodes.
Measurement source
main p.5, article p.20824 · Electrochemical performance · Fig. 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
M-NMN-1 specific capacity at 10 A g^-1480 C g^-1 at 10 A g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-1 specific capacity at 1 A g^-1Marked as a best value within this paper802.0 C g^-1 at 1 A g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-1 specific capacity at 20 A g^-1416 C g^-1 at 20 A g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-1 specific capacity at 2 A g^-1688.5 C g^-1 at 2 A g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-1 specific capacity at 5 A g^-1549.5 C g^-1 at 5 A g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-1 specific capacity at 8 A g^-1501.5 C g^-1 at 8 A g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-2 specific capacities at 1, 2, 5, 8, 10 and 20 A g^-1650.9, 541.4, 431.0, 387.8, 378.2, 341.8 C g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-3 specific capacities at 1, 2, 5, 8, 10 and 20 A g^-1546.9, 492.2, 417.7, 380.0, 348.2, 299 C g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
Ni-MOF specific capacities at 1, 2, 5, 8, 10 and 20 A g^-1435.6, 379.5, 306.4, 261.7, 239.2, 193.2 C g^-1——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5c
M-NMN-1 charge-transfer resistance RctMarked as a best value within this paper4.08 ohm——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5d
M-NMN-2 charge-transfer resistance Rct21.94 ohm——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5d
M-NMN-3 charge-transfer resistance Rct6.91 ohm——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5d
Ni-MOF charge-transfer resistance Rct16.60 ohm——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5d
Ni-MOF, M-NMN-2 and M-NMN-3 solution impedances RsNi-MOF 0.75 ohm; M-NMN-2 0.77 ohm; M-NMN-3 0.83 ohm——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5d
M-NMN-1 solution impedance RsMarked as a best value within this paper0.35 ohm——Text
Exact Reported		main p.5, article p.20824 · Electrochemical performance · Fig. 5d