AC conductivity from complex impedance analysis
Co-BTC cold-pressed pellet · Pellet
Graphite paste contacts; vacuum 10^-7 bar; HP 4284L LCR meter; 10 kHz to 500 kHz.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|
Electrical Transport — Unraveling the Electrical, Dielectric, and Electrocatalytic Properties of Bimetallic Cobalt-Based Metal–Organic Frameworks
Measurement evidence
Electrical Transport
Unraveling the Electrical, Dielectric, and Electrocatalytic Properties of Bimetallic Cobalt-Based Metal–Organic Frameworks · Godara M., Chowdhury S., Cheng P. et al. · Advanced Energy and Sustainability Research · 2025 · 2300301
5 measurement groups · 10 results
Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.
AC conductivity from complex impedance analysis
Mn-BTC cold-pressed pellet · Pellet
Conductive graphite paste contacts on opposite pellet faces; ARS cryostat evacuated to 10^-7 bar; HP 4284L LCR meter; 10 kHz to 500 kHz.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|
AC conductivity from complex impedance analysis
1:2 Mn:Co cold-pressed pellet · Pellet
Graphite paste contacts; vacuum 10^-7 bar; HP 4284L LCR meter; 10 kHz to 500 kHz.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| 1:2 Mn:Co AC conductivity enhancementMarked as a best value within this paper | about 25% higher sigmaAC than the rest of the MOF samples | — | about | Text Approximate | main p.4 · Electrical Properties · Figure 4a |
| AC conductivity range lower bound across MOFs | 7-8 x 10^-8 to 2 x 10^-6 S m^-1 | — | range lower bound reported as 7-8 x 10^-8 | Text Range | main p.4 · Electrical Properties · Figure 4a |
| AC conductivity range upper bound across MOFsMarked as a best value within this paper | 2 x 10^-6 S m^-1 | — | range upper bound | Text Range | main p.4 · Electrical Properties · Figure 4a |
| Estimated DC conductivity for all MOFs | estimated to be higher than 10^-7 S m^-1; conclusion describes low approximately 10^-7 S m^-1 | — | estimated | Text Approximate | main p.3 · Electrical Properties |
| Low-frequency Jonscher exponent range | n typically ranges from 0.6 to 0.9 at low frequencies | — | range | Text Range | main p.4 · Electrical Properties · Figure 4b |
Dielectric constant and loss tangent from impedance
1:2 Mn:Co cold-pressed pellet · Pellet
Complex dielectric constant calculated from impedance; Figure 4d at excitation frequency 10 kHz.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Dielectric constant range for Co-BTC | 5-5.2 | — | range | Text Range | main p.5 · Electrical Properties · Figure 4d and Figure S4 |
| Dielectric constant range for Mn-containing MOFs | 6.5-7.5 | — | range | Text Range | main p.5 · Electrical Properties · Figure 4d and Figure S4 |
Dielectric constant versus angular frequency plot
1:2 Mn:Co cold-pressed pellet · Pellet
SI Figure S4 plots dielectric constant against log10 angular frequency for all MOF samples; values visually read from rendered plot.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Approximate low-frequency dielectric constant for 1:1 Mn:CoMarked as a best value within this paper | about 7.25 at log10 omega near 4.8 | — | visual estimate from plotted markers | Figure Axis Approximate | SI p.S6 · Supporting Information · Figure S4 |
| Approximate low-frequency dielectric constant for 1:2 Mn:Co | about 7.1 at log10 omega near 4.8 | — | visual estimate from plotted markers | Figure Axis Approximate | SI p.S6 · Supporting Information · Figure S4 |
| Approximate low-frequency dielectric constant for Co-BTC | about 5.25 at log10 omega near 4.8 | — | visual estimate from plotted markers | Figure Axis Approximate | SI p.S6 · Supporting Information · Figure S4 |