Measurement evidence
Elucidating d-π conjugated two-dimensional 2,3,6,7,10,11-hexahydroxytriphenylene based conductive metal-organic framework for hybrid supercapacitors · Iqbal M.Z., Shaheen M., Khan M.W. et al. · Journal of Electroanalytical Chemistry · 2023 · 117564
Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.
Ni3(HHTP)2//AC hybrid supercapacitor · Electrode
Ni3(HHTP)2//AC hybrid device; CV over 0-1.6 V at 3, 10, 30, 50, 70 and 100 mV/s
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|
Ni3(HHTP)2//AC hybrid supercapacitor · Electrode
EIS of hybrid device before and after cycling; text states comparison after 1000 GCD cycles
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Hybrid device ESR after 1000 GCD cycles | 0.53 ohm | — | — | Text Exact Reported | 7 · 3.3. Electrochemical evaluation of asymmetric device · Figure 7c-d |
| Hybrid device ESR before stability test | 0.52 ohm | — | — | Text Exact Reported | 7 · 3.3. Electrochemical evaluation of asymmetric device · Figure 7c-d |
Ni3(HHTP)2//AC hybrid supercapacitor · Electrode
Ni3(HHTP)2//AC device; GCD over 0-1.6 V at 0.8, 1.0, 1.5, 2.0, 2.5 and 3.0 A/g
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Hybrid device specific capacitance calculated from reported capacityMarked as a best value within this paper | 194 C/g divided by 1.6 V = 121.25 F/g | — | — | Calculated From Reported Approximate | 5-6 · 3.3. Electrochemical evaluation of asymmetric device · Equation 4; Figure 6b |
| Hybrid device specific capacityMarked as a best value within this paper | 194 C/g | — | — | Text Exact Reported | 1 and 2 · Abstract; Table 1 · Table 1 |
| Hybrid device specific capacity at 3 A/g | approximately 20 C/g at 3 A/g | — | — | Visual Estimate Approximate | 5 · Figure 6 · Figure 6a |
| Maximum energy densityMarked as a best value within this paper | 43 Wh/kg | — | — | Text Exact Reported | 1 and 2 · Abstract; Table 1 · Table 1 |
| Maximum power densityMarked as a best value within this paper | 2400 W/kg | — | — | Text Exact Reported | 1 and 2 · Abstract; Table 1 · Table 1 |
| Hybrid device potential window | 0-1.6 V | — | — | Text Exact Reported | 6 · 3.3. Electrochemical evaluation of asymmetric device · Figure 5c |
Ni3(HHTP)2//AC hybrid supercapacitor · Electrode
Capacity retention of Ni3(HHTP)2//AC device after repeated GCD cycles
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Capacity retention after 3000 cyclesMarked as a best value within this paper | 86% after 3000 cycles | — | — | Text Exact Reported | 6 · 3.3. Electrochemical evaluation of asymmetric device · Figure 7a |
| Capacity retention reported in summary | 89% after 3000 charge/discharge cycles | — | — | Text Exact Reported | 8 · 4. Summary |
Ni3(HHTP)2//AC hybrid supercapacitor · Electrode
Regression parameters k1 and k2 fitted to CV data; model shown for 3, 50 and 100 mV/s and contribution trend from 3 to 100 mV/s
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Capacitive contribution at 100 mV/s | approximately 45% | — | — | Visual Estimate Approximate | 7-8 · 3.3. Electrochemical evaluation of asymmetric device · Figure 9g |
| Capacitive contribution at 3 mV/s | approximately 12% | — | — | Visual Estimate Approximate | 7 · Figure 9 · Figure 9g |
| Diffusive contribution at 100 mV/s | approximately 55% | — | — | Visual Estimate Approximate | 7-8 · 3.3. Electrochemical evaluation of asymmetric device · Figure 9g |
| Diffusive contribution at 3 mV/s | approximately 88% | — | — | Visual Estimate Approximate | 7 · Figure 9 · Figure 9g |
| k1/k2 switching point voltage | 1.6 V | — | — | Text Exact Reported | 8 · 3.3. Electrochemical evaluation of asymmetric device · Figure 8 |
activated carbon electrode · Electrode
EIS of activated carbon electrode from 0.1 Hz to 100 kHz
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Activated carbon electrode ESR | 0.3 ohm | — | — | Text Exact Reported | 4-5 · 3.2. Electrochemical evaluation in three cell measurements · Figure 4e |
Ni3(HHTP)2 slurry electrode on nickel foam · Electrode
EIS of Ni3(HHTP)2 electrode from 0.1 Hz to 100 kHz
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni3(HHTP)2 electrode ESRMarked as a best value within this paper | 1.1 ohm | — | — | Text Exact Reported | 4 · 3.2. Electrochemical evaluation in three cell measurements · Figure 4b |
| Ni3(HHTP)2 electrode charge-transfer resistance | negligible; no semicircle in high-frequency region | — | — | Text Qualitative | 4 · 3.2. Electrochemical evaluation in three cell measurements · Figure 4a-b |
activated carbon electrode · Electrode
3 M KOH electrolyte; activated carbon electrode evaluated from 0 to -1.0 V to define the negative-electrode window for device fabrication
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Activated carbon working potential window | 0 to -1.0 V | — | — | Text Exact Reported | 4 · 3.2. Electrochemical evaluation in three cell measurements · Figure 3a |
Ni3(HHTP)2 slurry electrode on nickel foam · Electrode
3 M KOH electrolyte; platinum counter electrode; Hg/HgO reference; Ni3(HHTP)2 electrode cycled over 0-0.7 V and at scan rates 3-50 mV/s
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni3(HHTP)2 CV scan-rate range | 3-50 mV/s | — | — | Caption Range | 3 · Figure caption · Figure 3c |
| Ni3(HHTP)2 CV tested potential range | 0-0.7 V | — | — | Text Exact Reported | 4 · 3.2. Electrochemical evaluation in three cell measurements · Figure 3a |
| Ni3(HHTP)2 optimised working potential window | approximately 0.6 V | — | — | Text Approximate | 4 · 3.2. Electrochemical evaluation in three cell measurements · Figure 3a |
Ni3(HHTP)2 slurry electrode on nickel foam · Electrode
3 M KOH electrolyte; GCD at 6-12 A/g in the same potential range optimised by CV
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni3(HHTP)2 GCD current-density range | 6-12 A/g | — | — | Caption Range | 3 · Figure caption · Figure 3d |