Electrical Transport — Manganese oxide and urea-assisted engineering of nickel-iron compounds for high-performance battery-supercapacitor hybrid devices

Measurement evidence

Electrical Transport

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

6 measurement groups · 12 results

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

BSH Nyquist/electrochemical impedance fitting

Impedance spectroscopy

NiFe-Mn3//rGO BSH · Unknown

Nyquist plot and equivalent circuit in SI Figure S3; fitted Rs and Rct reported in main text.

Context: composite
Measurement source: 10 · 3.3 · Figure S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
BSH charge-transfer resistance Rct	1.2 Ohm	—	—	Text Exact Reported	10 · 3.3 · Figure S3
BSH series resistance Rs	0.6 Ohm	—	—	Text Exact Reported	10 · 3.3 · Figure S3

Nyquist/electrochemical impedance fitting

Impedance spectroscopy

NiFe · Electrode

Fitted equivalent circuit produced Rs and Rct values.

Context: pristine_control
Measurement source: 7-8 · 3.2 · Fig. 5c; Table 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance Rct	0.74 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3
Series resistance Rs	0.71 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3

Nyquist/electrochemical impedance fitting

Impedance spectroscopy

NiFe-Mn1 · Electrode

Fitted equivalent circuit produced Rs and Rct values.

Context: composite
Measurement source: 7-8 · 3.2 · Fig. 5c; Table 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance Rct	0.71 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3
Series resistance Rs	0.59 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3

Nyquist/electrochemical impedance fitting

Impedance spectroscopy

NiFe-Mn2 · Electrode

Fitted equivalent circuit produced Rs and Rct values.

Context: composite
Measurement source: 7-8 · 3.2 · Fig. 5c; Table 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance Rct	0.68 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3
Series resistance Rs	0.45 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3

Nyquist/electrochemical impedance fitting

Impedance spectroscopy

NiFe-Mn3 · Electrode

Fitted equivalent circuit produced Rs and Rct values.

Context: composite
Measurement source: 7-8 · 3.2 · Fig. 5c; Table 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance RctMarked as a best value within this paper	0.63 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3
Series resistance RsMarked as a best value within this paper	0.38 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3

Nyquist/electrochemical impedance fitting

Impedance spectroscopy

NiFe-Mn4 · Electrode

Fitted equivalent circuit produced Rs and Rct values.

Context: composite
Measurement source: 7-8 · 3.2 · Fig. 5c; Table 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance Rct	0.65 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3
Series resistance Rs	0.4 Ohm	—	—	Table Exact Reported	7 · 3.2 · Table 3