cMOF Evidence Base
Electrical Transport — High Proton Mobility with High Directionality in Isolated Channels of MOF-74

Measurement evidence

Electrical Transport

High Proton Mobility with High Directionality in Isolated Channels of MOF-74 · Hwang S., Lee E.J., Song D. et al. · ACS Applied Materials and Interfaces · 2018 · 35354-35660

20 measurement groups · 140 results

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

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 11 NH4OH-treated Co-MOF-74 single crystal, a-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [100]/a-axis via flat (100) or (010) surfaces on FTO/silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
a-axis activation energy0.250.25 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 30 deg C1.7e-60.0000017 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 45 deg C2.9e-60.0000029 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 60 deg C4.5e-60.0000045 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 75 deg C5.9e-60.0000059 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 90 deg C8.0e-60.000008 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 11 NH4OH-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [001]/c-axis via flat (001) surfaces
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c-axis activation energyMarked as a best value within this paper0.120.12 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 30 deg C2.1e-30.0021 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 45 deg C2.8e-30.0028 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 60 deg C3.6e-30.0036 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 75 deg C4.0e-30.004 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 90 deg CMarked as a best value within this paper4.5e-30.0045 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 11 NH4OH-treated Co-MOF-74 pellet · Pellet

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
pressed pellet, flat sides contacted with tin-coated copper wires and conductive silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pellet activation energy0.300.3 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 30 deg C1.2e-71.2e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 45 deg C1.5e-71.5e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 60 deg C1.8e-71.8e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 75 deg C2.2e-72.2e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 90 deg CMarked as a best value within this paper2.5e-72.5e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 3 H2SO4-treated Co-MOF-74 single crystal, a-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [100]/a-axis via flat (100) or (010) surfaces on FTO/silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
a-axis activation energy0.310.31 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 30 deg C7.7e-77.7e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 45 deg C1.5e-60.0000015 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 60 deg C2.4e-60.0000024 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 75 deg C3.7e-60.0000037 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 90 deg C5.5e-60.0000055 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 3 H2SO4-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [001]/c-axis via flat (001) surfaces
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c-axis activation energy0.310.31 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 30 deg C4.6e-40.00046 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 45 deg C9.2e-40.00092 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 60 deg C1.3e-30.0013 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 75 deg C2.3e-30.0023 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 90 deg C3.5e-30.0035 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 3 H2SO4-treated Co-MOF-74 pellet · Pellet

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
pressed pellet, flat sides contacted with tin-coated copper wires and conductive silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pellet activation energy0.160.16 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 30 deg C2.8e-82.8e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 45 deg C3.6e-83.6e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 60 deg C4.5e-84.5e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 75 deg C5.7e-85.7e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 90 deg C7.5e-87.5e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 5 H2SO4-treated Co-MOF-74 single crystal, a-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [100]/a-axis via flat (100) or (010) surfaces on FTO/silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
a-axis activation energy0.210.21 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 30 deg C1.4e-60.0000014 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 45 deg C2.2e-60.0000022 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 60 deg C3.1e-60.0000031 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 75 deg C4.0e-60.000004 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 90 deg C5.2e-60.0000052 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 5 H2SO4-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [001]/c-axis via flat (001) surfaces
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c-axis activation energy0.140.14 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 30 deg C4.0e-40.0004 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 45 deg C5.6e-40.00056 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 60 deg C7.2e-40.00072 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 75 deg C9.0e-40.0009 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 90 deg C1.0e-30.001 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 5 H2SO4-treated Co-MOF-74 pellet · Pellet

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
pressed pellet, flat sides contacted with tin-coated copper wires and conductive silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pellet activation energy0.240.24 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 30 deg C1.8e-81.8e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 45 deg C2.7e-82.7e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 60 deg C4.0e-84e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 75 deg C5.6e-85.6e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 90 deg C7.7e-87.7e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 7 H2O-coordinating Co-MOF-74 single crystal, a-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [100]/a-axis via flat (100) or (010) surfaces on FTO/silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
a-axis activation energy0.250.25 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 30 deg C5.6e-75.6e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 45 deg C9.3e-79.3e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 60 deg C1.4e-60.0000014 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 75 deg C1.8e-60.0000018 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 90 deg C2.8e-60.0000028 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 7 H2O-coordinating Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [001]/c-axis via flat (001) surfaces
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c-axis activation energy0.150.15 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 30 deg C2.3e-40.00023 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 45 deg C3.3e-40.00033 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 60 deg C4.1e-40.00041 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 75 deg C5.2e-40.00052 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 90 deg C6.1e-40.00061 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 7 H2O-coordinating Co-MOF-74 pellet · Pellet

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
pressed pellet, flat sides contacted with tin-coated copper wires and conductive silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pellet activation energy0.160.16 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 30 deg C8.5e-98.5e-9 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 45 deg C1.6e-81.6e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 60 deg C2.5e-82.5e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 75 deg C3.8e-83.8e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 90 deg C4.8e-84.8e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 9 NH4OH-treated Co-MOF-74 single crystal, a-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [100]/a-axis via flat (100) or (010) surfaces on FTO/silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
a-axis activation energy0.210.21 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 30 deg C3.6e-60.0000036 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 45 deg C4.5e-60.0000045 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 60 deg C5.6e-60.0000056 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 75 deg C6.8e-60.0000068 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
a-axis proton conductivity at 90 deg CMarked as a best value within this paper8.3e-60.0000083 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 9 NH4OH-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
single crystal connected along [001]/c-axis via flat (001) surfaces
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c-axis activation energy0.140.14 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 30 deg C8.5e-40.00085 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 45 deg C1.2e-30.0012 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 60 deg C1.5e-30.0015 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 75 deg C1.8e-30.0018 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c-axis proton conductivity at 90 deg C2.1e-30.0021 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Electrochemical impedance spectroscopy (EIS), SI1260 Impedance/Gain-Phase analyzer

Impedance spectroscopy

pH 9 NH4OH-treated Co-MOF-74 pellet · Pellet

Proton conductivity measured at 30, 45, 60, 75, and 90 deg C under constant 95% RH; frequency range 0.1-10^7 Hz.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
pressed pellet, flat sides contacted with tin-coated copper wires and conductive silver epoxy
Context
single-component Co-MOF-74 framework with pH-controlled proton carriers; no composite
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
pellet activation energy0.280.28 eV—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 30 deg C2.5e-82.5e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 45 deg C6.0e-86e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 60 deg C7.9e-87.9e-8 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 75 deg C1.2e-71.2e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
pellet proton conductivity at 90 deg C1.8e-71.8e-7 S cm-1—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Conductivity-ratio comparison from reported EIS-derived conductivities

Electrical conductivityImpedance spectroscopy

pH 11 NH4OH-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

c/a and c/pellet conductivity ratios calculated/reported for pH-controlled Co-MOF-74 at 30, 45, 60, 75, and 90 deg C under 95% RH.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
comparison of c-axis single crystal, a-axis single crystal, and randomly oriented pellet
Context
anisotropic transport in pristine Co-MOF-74 framework with pH-controlled proton carriers
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c/a conductivity ratio at 30 deg CMarked as a best value within this paper12351235 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 45 deg C966966 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 60 deg C800800 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 75 deg C678678 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 90 deg C563563 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 30 deg C1750017500 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 45 deg C1866718667 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 60 deg C2000020000 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 75 deg C1818218182 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 90 deg C1800018000 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Conductivity-ratio comparison from reported EIS-derived conductivities

Electrical conductivityImpedance spectroscopy

pH 3 H2SO4-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

c/a and c/pellet conductivity ratios calculated/reported for pH-controlled Co-MOF-74 at 30, 45, 60, 75, and 90 deg C under 95% RH.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
comparison of c-axis single crystal, a-axis single crystal, and randomly oriented pellet
Context
anisotropic transport in pristine Co-MOF-74 framework with pH-controlled proton carriers
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c/a conductivity ratio at 30 deg C597597 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 45 deg C613613 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 60 deg C542542 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 75 deg C622622 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 90 deg C636636 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 30 deg C1642916429 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 45 deg C2555625556 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 60 deg C2888928889 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 75 deg C4035140351 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 90 deg CMarked as a best value within this paper4666746667 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Conductivity-ratio comparison from reported EIS-derived conductivities

Electrical conductivityImpedance spectroscopy

pH 5 H2SO4-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

c/a and c/pellet conductivity ratios calculated/reported for pH-controlled Co-MOF-74 at 30, 45, 60, 75, and 90 deg C under 95% RH.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
comparison of c-axis single crystal, a-axis single crystal, and randomly oriented pellet
Context
anisotropic transport in pristine Co-MOF-74 framework with pH-controlled proton carriers
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c/a conductivity ratio at 30 deg C286286 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 45 deg C255255 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 60 deg C232232 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 75 deg C225225 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 90 deg C192192 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 30 deg C2222222222 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 45 deg C2074120741 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 60 deg C1800018000 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 75 deg C1607116071 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 90 deg C1298712987 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Conductivity-ratio comparison from reported EIS-derived conductivities

Electrical conductivityImpedance spectroscopy

pH 7 H2O-coordinating Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

c/a and c/pellet conductivity ratios calculated/reported for pH-controlled Co-MOF-74 at 30, 45, 60, 75, and 90 deg C under 95% RH.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
comparison of c-axis single crystal, a-axis single crystal, and randomly oriented pellet
Context
anisotropic transport in pristine Co-MOF-74 framework with pH-controlled proton carriers
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c/a conductivity ratio at 30 deg C411411 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 45 deg C355355 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 60 deg C293293 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 75 deg C289289 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 90 deg C218218 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 30 deg C2705927059 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 45 deg C2062520625 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 60 deg C1640016400 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 75 deg C1368413684 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 90 deg C1270812708 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2

Conductivity-ratio comparison from reported EIS-derived conductivities

Electrical conductivityImpedance spectroscopy

pH 9 NH4OH-treated Co-MOF-74 single crystal, c-axis EIS geometry · Single Crystal

c/a and c/pellet conductivity ratios calculated/reported for pH-controlled Co-MOF-74 at 30, 45, 60, 75, and 90 deg C under 95% RH.

Temperature
303.15, 318.15, 333.15, 348.15, 363.15
Atmosphere
95% RH humid chamber
Geometry
comparison of c-axis single crystal, a-axis single crystal, and randomly oriented pellet
Context
anisotropic transport in pristine Co-MOF-74 framework with pH-controlled proton carriers
Measurement source
p003 / journal page 35356 · Results and Discussion · Table 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
c/a conductivity ratio at 30 deg C236236 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 45 deg C267267 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 60 deg C268268 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 75 deg C265265 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/a conductivity ratio at 90 deg C253253 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 30 deg C3400034000 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 45 deg C2000020000 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 60 deg C1898718987 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 75 deg C1500015000 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2
c/pellet conductivity ratio at 90 deg C1166711667 dimensionless—Table
Exact Reported		p003 / journal page 35356 · Results and Discussion · Table 2