cMOF Evidence Base
Electrical Transport — Truxone-Based Conductive Metal-Organic Frameworks for the Oxygen Reductive Reaction

Measurement evidence

Electrical Transport

Truxone-Based Conductive Metal-Organic Frameworks for the Oxygen Reductive Reaction · Zhao Q., Jiang J., Zhao W. et al. · Journal of Physical Chemistry C · 2021 · 12690-12698

2 measurement groups · 11 results

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

Nyquist electrochemical impedance spectroscopy with equivalent-circuit fitting.

Impedance spectroscopy

pressed truxone-Cu MOF pellet · Pellet

Frequency range 100 Hz to 1 MHz; temperatures 5, 10, 15, 20, 30, 40, 50, 60, 70 and 80 deg C; fitted to grain resistance, grain-boundary resistance, contact resistance and capacitances.

Temperature
278-353
Geometry
pressed pellet
Context
pristine framework pellet
Measurement source
p005 / article p.12694 · Results and Discussion · Figure 3; Figure S24; Table S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
grain-boundary conductivity at 30 deg C2.44 x 10-3 S cm-1 (2.4 mS cm-1)2.44 mS cm-1—SI Table
Exact Reported		S24 · Electrical properties · Table S3
grain-boundary conductivity at 80 deg C1.32 x 10-2 S cm-1 (13.2 mS cm-1)13.2 mS cm-1—SI Table
Exact Reported		S24 · Electrical properties · Table S3
grain-boundary transport activation energy0.33 +/- 0.02 eV—+/- 0.02 eVText
Exact Reported		S25 · Electrical properties · Figure S26
grain conductivity at 30 deg CMarked as a best value within this paper4.01 x 10-3 S cm-1 (reported in main text as 4.0 mS cm-1)4.01 mS cm-1—SI Table
Exact Reported		S24 · Electrical properties · Table S3
grain conductivity at 80 deg CMarked as a best value within this paper1.45 x 10-2 S cm-1 (14.5 mS cm-1)14.5 mS cm-1—SI Table
Exact Reported		S24 · Electrical properties · Table S3
grain transport activation energy0.24 +/- 0.01 eV—+/- 0.01 eVText
Exact Reported		S25 · Electrical properties · Figure S25
EIS-fitted all/grain/grain-boundary resistance and conductivity temperature seriesTable S3: at 5/10/15/20/30/40/50/60/70/80 C, sigma_all(S cm-1)=7.39e-4, 8.10e-4, 9.49e-4, 1.14e-3, 1.52e-3, 1.85e-3, 2.48e-3, 3.88e-3, 5.38e-3, 6.90e-3; sigma_b=2.22e-3, 2.27e-3, 2.57e-3, 3.10e-3, 4.01e-3, 4.75e-3, 5.78e-3, 9.78e-3, 1.29e-2, 1.45e-2; sigma_gb=1.11e-3, 1.26e-3, 1.50e-3, 1.80e-3, 2.44e-3, 3.03e-3, 4.35e-3, 6.42e-3, 9.22e-3, 1.32e-2.——SI Table
Exact Reported		S24 · Electrical properties · Table S3

Two-probe linear sweep voltammetry conductivity measurement.

Electrical conductivityVoltammetry

pressed truxone-Cu MOF pellet · Pellet

Voltage 0-1 V between two stainless-steel electrodes at 50 mV s-1; temperatures 5-80 deg C; sample pretreated at 150 deg C.

Temperature
278-353
Geometry
pressed pellet, L = 1.89 x 10-3 m, area = 2.03 x 10-5 m2
Context
pristine framework pellet
Measurement source
S17-S20 · Electrical properties of the truxone-Cu MOF · Figure S22; Table S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
two-probe total resistance and conductivity temperature seriesTable S2: 5 C k=0.589 R=1.70e3 ohm sigma=5.48e-4 S cm-1; 10 C k=0.624 R=1.60e3 sigma=5.81e-4; 15 C k=0.754 R=1.33e3 sigma=7.02e-4; 20 C k=0.919 R=1.09e3 sigma=8.56e-4; 30 C k=1.175 R=8.51e2 sigma=1.09e-3; 40 C k=1.568 R=6.38e2 sigma=1.46e-3; 50 C k=2.121 R=4.71e2 sigma=1.97e-3; 60 C k=3.469 R=2.88e2 sigma=3.23e-3; 70 C k=4.798 R=2.08e2 sigma=4.47e-3; 80 C k=7.198 R=1.39e2 sigma=6.70e-3.——SI Table
Exact Reported		S19 · Electrical properties · Table S2
total charge-transport activation energy0.35 +/- 0.02 eV—+/- 0.02 eVText
Exact Reported		S20 · Electrical properties · Figure S23
total two-probe conductivity at 30 deg C1.09 x 10-3 S cm-1 (1.1 mS cm-1)1.09 mS cm-1—SI Table
Exact Reported		S19 · Electrical properties · Table S2
total two-probe conductivity at 80 deg C6.70 x 10-3 S cm-16.7 mS cm-1—SI Table
Exact Reported		S19 · Electrical properties · Table S2