cMOF Evidence Base
Electrical Transport — Proton-Conductive 3D LnIII Metal–Organic Frameworks for Formic Acid Impedance Sensing

Measurement evidence

Electrical Transport

Proton-Conductive 3D LnIII Metal–Organic Frameworks for Formic Acid Impedance Sensing · Liu R.-L., Qu W.-T., Dou B.-H. et al. · Chemistry - An Asian Journal · 2020 · 182-190

6 measurement groups · 114 results

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

Arrhenius analysis of temperature-dependent proton conductivity

Electrical conductivity

pelletised ZZU-1 · Pellet

98% RH; activation energy from least-squares slope of Arrhenius plots

Temperature
298-373
Atmosphere
98% RH
Geometry
pellet with Pt electrodes
Context
pristine framework
Measurement source
5 · Results and Discussion · Figure 7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Activation energy ZZU-1 80-100 deg C at 98% RHEa = 1.37 eV (above 70 deg C)——Text
Exact Reported		5 · Results and Discussion · Figure 7
Activation energy ZZU-1 25-70 deg C at 98% RHEa = 0.45 eV (25-70 deg C)——Text
Exact Reported		5 · Results and Discussion · Figure 7

time-dependent and humidity-cycling AC impedance

Impedance spectroscopy

pelletised ZZU-1 · Pellet

100 deg C, 98% RH for 12 h and six days; humidity cycling between 68% and 98% RH

Temperature
373
Atmosphere
98% RH; cycling 68-98% RH
Geometry
pellet with Pt electrodes
Context
pristine framework
Measurement source
5 · Results and Discussion · Figures 6, S16-S17
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
12 h conductivity stabilityalmost negligible change even after 12 h——Text
Qualitative		5 · Results and Discussion · Figure 6
six-day conductivity stabilityno significant performance loss for more than six days——Text
Qualitative		5 · Results and Discussion · Figure S16
humidity-cycling stabilityresistance to wide range of humidity transition——Text
Qualitative		5 · Results and Discussion · Figures 6c, 6d and S17

Nyquist-plot equivalent-circuit fitting in ZSimpWin

Impedance spectroscopy

pelletised ZZU-1 · Pellet

Representative fits at 25 deg C and 100 deg C under 98% RH

Temperature
298 and 373
Atmosphere
98% RH
Geometry
pellet with Pt electrodes
Context
pristine framework
Measurement source
11-13 · Supporting Information · Figures S23-S26
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Equivalent circuit for impedance fitsLR(C(QR))——Text
Qualitative		8 · Experimental Section - Analysis on the impedance plots · Figures S23-S26

AC impedance spectroscopy; proton conductivity

Electrical conductivityImpedance spectroscopy

pelletised ZZU-1 · Pellet

Pellet; 1 Hz to 1 MHz, 100 mV, quasi-four-probe Pt electrodes; 25-100 deg C and 68-98% RH

Temperature
298-373
Atmosphere
controlled humidity, 68-98% RH
Geometry
pellet with Pt electrodes
Context
pristine framework
Measurement source
8 · Experimental Section - Proton conductivity measurements · Figures 4, S6-S10; Table S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ZZU-1 proton conductivity at 100 deg C and 68% RH1.5e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 100 deg C and 75% RH5.81e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 100 deg C and 85% RH8.95e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 100 deg C and 93% RH0.0002 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 100 deg C and 98% RHMarked as a best value within this paper0.000895 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 25 deg C and 68% RH2.77e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 25 deg C and 75% RH5.94e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 25 deg C and 85% RH3.19e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 25 deg C and 93% RH6.38e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 25 deg C and 98% RH3.06e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 35 deg C and 68% RH6.22e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 35 deg C and 75% RH1.37e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 35 deg C and 85% RH5.1e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 35 deg C and 93% RH1.24e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 35 deg C and 98% RH9.66e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 40 deg C and 68% RH8.64e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 40 deg C and 75% RH2.45e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 40 deg C and 85% RH6.71e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 40 deg C and 93% RH2.55e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 40 deg C and 98% RH1.25e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 50 deg C and 68% RH2.76e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 50 deg C and 75% RH6.66e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 50 deg C and 85% RH1.32e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 50 deg C and 93% RH6.09e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 50 deg C and 98% RH1.79e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 60 deg C and 68% RH5.5e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 60 deg C and 75% RH9.85e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 60 deg C and 85% RH3.54e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 60 deg C and 93% RH1.28e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 60 deg C and 98% RH2.67e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 70 deg C and 68% RH6.44e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 70 deg C and 75% RH2.31e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 70 deg C and 85% RH6.54e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 70 deg C and 93% RH2.43e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 70 deg C and 98% RH5.26e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 80 deg C and 68% RH8.76e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 80 deg C and 75% RH5.15e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 80 deg C and 85% RH1.05e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 80 deg C and 93% RH4.05e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 80 deg C and 98% RH8.82e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 85 deg C and 68% RH1.94e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 85 deg C and 75% RH9.03e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 85 deg C and 85% RH1.56e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 85 deg C and 93% RH7.29e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 85 deg C and 98% RH0.000132 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 90 deg C and 68% RH4.64e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 90 deg C and 75% RH1.72e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 90 deg C and 85% RH2.93e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 90 deg C and 93% RH9.27e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 90 deg C and 98% RH0.000208 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 95 deg C and 68% RH8.36e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 95 deg C and 75% RH2.74e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 95 deg C and 85% RH5.26e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 95 deg C and 93% RH0.000121 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2
ZZU-1 proton conductivity at 95 deg C and 98% RH0.000405 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S2

Arrhenius analysis of temperature-dependent proton conductivity

Electrical conductivity

pelletised ZZU-2 · Pellet

98% RH; activation energy from least-squares slope of Arrhenius plots

Temperature
298-373
Atmosphere
98% RH
Geometry
pellet with Pt electrodes
Context
pristine framework
Measurement source
5 · Results and Discussion · Figure 7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Activation energy ZZU-2 80-100 deg C at 98% RHEa = 1.65 eV (80-100 deg C)——Text
Exact Reported		5 · Results and Discussion · Figure 7
Activation energy ZZU-2 25-70 deg C at 98% RHEa = 0.28 eV (25-70 deg C)——Text
Exact Reported		5 · Results and Discussion · Figure 7

AC impedance spectroscopy; proton conductivity

Electrical conductivityImpedance spectroscopy

pelletised ZZU-2 · Pellet

Pellet; 1 Hz to 1 MHz, 100 mV, quasi-four-probe Pt electrodes; 25-100 deg C and 68-98% RH

Temperature
298-373
Atmosphere
controlled humidity, 68-98% RH
Geometry
pellet with Pt electrodes
Context
pristine framework
Measurement source
8 · Experimental Section - Proton conductivity measurements · Figures 5, S11-S14; Table S3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ZZU-2 proton conductivity at 100 deg C and 68% RH5.8e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 100 deg C and 75% RH1.21e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 100 deg C and 85% RH4.9e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 100 deg C and 93% RH6e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 100 deg C and 98% RHMarked as a best value within this paper0.000463 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 25 deg C and 75% RH4.11e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 25 deg C and 85% RH8.42e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 25 deg C and 93% RH5.79e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 25 deg C and 98% RH2.45e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 35 deg C and 75% RH6.91e-08 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 35 deg C and 85% RH1.42e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 35 deg C and 93% RH1.02e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 35 deg C and 98% RH7.67e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 40 deg C and 75% RH1.29e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 40 deg C and 85% RH3.95e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 40 deg C and 93% RH1.34e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 40 deg C and 98% RH9.88e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 50 deg C and 75% RH2.55e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 50 deg C and 85% RH6.46e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 50 deg C and 93% RH2.44e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 50 deg C and 98% RH1.28e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 60 deg C and 68% RH1.19e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 60 deg C and 75% RH4.86e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 60 deg C and 85% RH9.27e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 60 deg C and 93% RH4.9e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 60 deg C and 98% RH1.7e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 70 deg C and 68% RH1.76e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 70 deg C and 75% RH6.96e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 70 deg C and 85% RH1.46e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 70 deg C and 93% RH6e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 70 deg C and 98% RH2.08e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 80 deg C and 68% RH3.19e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 80 deg C and 75% RH1.02e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 80 deg C and 85% RH2.32e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 80 deg C and 93% RH9.36e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 80 deg C and 98% RH2.73e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 85 deg C and 68% RH5.48e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 85 deg C and 75% RH1.5e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 85 deg C and 85% RH4.86e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 85 deg C and 93% RH1.25e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 85 deg C and 98% RH4.32e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 90 deg C and 68% RH9.44e-07 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 90 deg C and 75% RH3.11e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 90 deg C and 85% RH7.29e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 90 deg C and 93% RH1.71e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 90 deg C and 98% RH8.36e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 95 deg C and 68% RH1.99e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 95 deg C and 75% RH7.61e-06 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 95 deg C and 85% RH1.9e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 95 deg C and 93% RH3.84e-05 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3
ZZU-2 proton conductivity at 95 deg C and 98% RH0.000159 S cm-1——SI Table
Exact Reported		2 · Supporting Information · Table S3