cMOF Evidence Base
Electrochemistry Application — Manganese oxide and urea-assisted engineering of nickel-iron compounds for high-performance battery-supercapacitor hybrid devices

Measurement evidence

Electrochemistry Application

Manganese oxide and urea-assisted engineering of nickel-iron compounds for high-performance battery-supercapacitor hybrid devices · Dong S.-F., Cheshideh H., Kongvarhodom C. et al. · Journal of Environmental Chemical Engineering · 2025 · 117142

18 measurement groups · 42 results

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

BSH cyclic voltammetry potential-window test

Voltammetry

NiFe-Mn3//rGO BSH · Unknown

CV measured for 1.2, 1.3, 1.4, 1.5 and 1.6 V at 20 mV/s.

Context
composite
Measurement source
9-10 · 3.3 · Fig. 8a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Selected operating potential window1.5 V used as optimal value——Text
Exact Reported		9 · 3.3 · Fig. 8a-b

Long-term GC/D cycling

NiFe-Mn3//rGO BSH · Unknown

Continuous charge/discharge cycling over 6000 cycles; capacitance retention and Coulombic efficiency.

Context
composite
Measurement source
10 · 3.3 · Fig. 8f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Coulombic efficiency after 6000 cycles96.7% after 6000 cycles6000 cycles—Text
Exact Reported		10 · 3.3 · Fig. 8f
Capacitance retention after 6000 cyclesMarked as a best value within this paper88.8% after 6000 cycles6000 cycles—Text
Exact Reported		10 · 3.3 · Fig. 8f

BSH GC/D potential-window test

NiFe-Mn3//rGO BSH · Unknown

GC/D measured at potential windows 1.2 to 1.6 V at 30 mA/cm2.

Context
composite
Measurement source
9-10 · 3.3 · Fig. 8c
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
IR drop observationNo serious IR drops observed; 1.6 V curve had lower symmetry——Text
Qualitative		9-10 · 3.3 · Fig. 8c

Ragone plot

NiFe-Mn3//rGO BSH · Unknown

Energy and power density of NiFe-Mn3//rGO BSH.

Context
composite
Measurement source
10 · 3.3 · Fig. 8e
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Energy density at highest power density1.3 kWh/cm2 at 21.4 W/cm221.4 W/cm2—Text
Exact Reported		10 · 3.3 · Fig. 8e
Maximum BSH energy densityMarked as a best value within this paper2.0 kWh/cm2 at 6.4 W/cm26.4 W/cm2—Text
Exact Reported		10 · 3.3 · Fig. 8e
Highest reported BSH power density21.4 W/cm2——Text
Exact Reported		10 · 3.3 · Fig. 8e
Power density at maximum energy density6.4 W/cm2——Text
Exact Reported		10 · 3.3 · Fig. 8e

Cyclic voltammetry in three-electrode cell

Voltammetry

NiFe · Electrode

3 M KOH electrolyte; Pt counter electrode; Ag/AgCl reference; capacitance from CV curves.

Context
pristine_control
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5a; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from CV603.8 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from CV862.5 F/g——Table
Exact Reported		7 · 3.2 · Table 3
NiFe oxidation peak potential0.58 V vs Ag/AgCl——Text
Exact Reported		6 · 3.2 · Fig. 5a
NiFe reduction peak potential0.15 V vs Ag/AgCl——Text
Exact Reported		6 · 3.2 · Fig. 5a

Cyclic voltammetry in three-electrode cell

Voltammetry

NiFe-Mn1 · Electrode

3 M KOH electrolyte; Pt counter electrode; Ag/AgCl reference; capacitance from CV curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5a; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from CV674.3 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from CV963.3 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Cyclic voltammetry in three-electrode cell

Voltammetry

NiFe-Mn2 · Electrode

3 M KOH electrolyte; Pt counter electrode; Ag/AgCl reference; capacitance from CV curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5a; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from CV681.9 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from CV974.1 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Cyclic voltammetry in three-electrode cell

Voltammetry

NiFe-Mn3 · Electrode

3 M KOH electrolyte; Pt counter electrode; Ag/AgCl reference; capacitance from CV curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5a; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from CVMarked as a best value within this paper996.1 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from CVMarked as a best value within this paper1423.0 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Cyclic voltammetry in three-electrode cell

Voltammetry

NiFe-Mn4 · Electrode

3 M KOH electrolyte; Pt counter electrode; Ag/AgCl reference; capacitance from CV curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5a; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from CV870.5 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from CV1243.6 F/g——Table
Exact Reported		7 · 3.2 · Table 3

CV comparison

Voltammetry

NiFe-Mn3 without urea · Electrode

SI CV comparison of NiFe-Mn3 with and without urea; numeric curves unavailable in provided SI text.

Context
composite
Measurement source
7-8 · 3.2 · Figure S1c
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
CV area comparisonNiFe-Mn3 shows larger integral area than no-urea electrode——Text
Qualitative		7-8 · 3.2 · Figure S1c

CV rate test

Voltammetry

NiFe-Mn3 · Electrode

Specific capacitance retention with scan rate increasing from 5 to 30 mV/s.

Context
composite
Measurement source
8-9 · 3.2 · Fig. 6f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
CV capacitance retention vs 5 mV/s80% retention when scan rate increased from 5 to 10 mV/s——Text
Exact Reported		8 · 3.2 · Fig. 6f
CV capacitance retention vs 5 mV/s65% retention when scan rate increased from 5 to 15 mV/s——Text
Exact Reported		8 · 3.2 · Fig. 6f
CV capacitance retention vs 5 mV/s52% retention when scan rate increased from 5 to 20 mV/s——Text
Exact Reported		8 · 3.2 · Fig. 6f
CV capacitance retention vs 5 mV/s41% retention when scan rate increased from 5 to 25 mV/s——Text
Exact Reported		8 · 3.2 · Fig. 6f
CV capacitance retention vs 5 mV/s32% retention when scan rate increased from 5 to 30 mV/s——Text
Exact Reported		8 · 3.2 · Fig. 6f

Long-term cycling from GC/D curves for NiFe-Mn3 electrode

NiFe-Mn3 · Electrode

SI Figure S2 plots capacitance retention and Coulombic efficiency versus cycle number from 0 to 1000 cycles.

Geometry
three-electrode NiFe-Mn3 electrode in 3 M KOH, inferred from main experimental section
Context
MnO2/NiFe-MOF composite electrode; not the assembled BSH device
Measurement source
4 · SI Figure S2 · Figure S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Coulombic efficiency after 1000 cycles for NiFe-Mn3 electrode96.4% at 1000 cycles——Figure Axis
Rounded Reported		4 · SI Figure S2 · Figure S2
Capacitance retention after 1000 cycles for NiFe-Mn3 electrode74.5% at 1000 cycles——Figure Axis
Rounded Reported		4 · SI Figure S2 · Figure S2

Galvanostatic charge/discharge in three-electrode cell

Galvanostatic cycling

NiFe · Electrode

3 M KOH electrolyte; capacitance from GC/D curves.

Context
pristine_control
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5b; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from GC/D303.0 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from GC/D606.0 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Galvanostatic charge/discharge in three-electrode cell

Galvanostatic cycling

NiFe-Mn1 · Electrode

3 M KOH electrolyte; capacitance from GC/D curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5b; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from GC/D417.3 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from GC/D834.6 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Galvanostatic charge/discharge in three-electrode cell

Galvanostatic cycling

NiFe-Mn2 · Electrode

3 M KOH electrolyte; capacitance from GC/D curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5b; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from GC/D444.3 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from GC/D888.6 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Galvanostatic charge/discharge in three-electrode cell

Galvanostatic cycling

NiFe-Mn3 · Electrode

3 M KOH electrolyte; capacitance from GC/D curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5b; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from GC/DMarked as a best value within this paper804.6 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from GC/DMarked as a best value within this paper1609.2 F/g——Table
Exact Reported		7 · 3.2 · Table 3

Galvanostatic charge/discharge in three-electrode cell

Galvanostatic cycling

NiFe-Mn4 · Electrode

3 M KOH electrolyte; capacitance from GC/D curves.

Context
composite
Measurement source
3, 7 · 2.4; 3.2 · Fig. 5b; Table 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Specific capacity from GC/D589.2 C/g——Table
Exact Reported		7 · 3.2 · Table 3
Specific capacitance from GC/D1178.4 F/g——Table
Exact Reported		7 · 3.2 · Table 3

GC/D rate test

NiFe-Mn3 · Electrode

Specific capacitance retention with current density increasing from 6 to 10 A/g.

Context
composite
Measurement source
8-9 · 3.2 · Fig. 7f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
GC/D capacitance retention vs 6 A/g81% retention when current density increased from 6 to 10 A/g——Text
Exact Reported		8 · 3.2 · Fig. 7f
GC/D capacitance retention vs 6 A/g94% retention when current density increased from 6 to 7 A/g——Text
Exact Reported		8 · 3.2 · Fig. 7f
GC/D capacitance retention vs 6 A/g90% retention when current density increased from 6 to 8 A/g——Text
Exact Reported		8 · 3.2 · Fig. 7f
GC/D capacitance retention vs 6 A/g85% retention when current density increased from 6 to 9 A/g——Text
Exact Reported		8 · 3.2 · Fig. 7f