Electrical Transport — Mixed Anionic and Cationic Redox Chemistry in a Tetrathiomolybdate Amorphous Coordination Framework

Measurement evidence

Electrical Transport

Mixed Anionic and Cationic Redox Chemistry in a Tetrathiomolybdate Amorphous Coordination Framework · Zhu Q., Wang J., Liu X. et al. · Angewandte Chemie - International Edition · 2020 · 16579-16586

2 measurement groups · 7 results

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

DC I-V and EIS MIEC analysis

<Na2MoS4> cold-pressed pellet · Pellet

Two-probe DC I-V from 0.01 to -0.01 V at 2 mV s-1; EIS from 10^6 to 0.1 Hz; temperatures -60 to 80 C in 20 C steps with 30 min stabilisation.

Temperature
293
Atmosphere
Ar-filled Swagelok cell in climatic chamber
Geometry
cold-pressed pellet between carbon-coated aluminium foils
Context
pristine dehydrated framework pellet
Measurement source
4 · MIEC testing and analysis · Figure S11
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
<Na2MoS4> direct ionic conductivity not resolvedassumed ion conducting but at lower magnitudes than electrical conductionText
Qualitative
6 (16584) · Results and Discussion · Figure 5
<Na2MoS4> electronic conductivity at 20 CMarked as a best value within this papersigma_eon as high as 6.1 x 10^-4 S cm^-1 at 20 C0.00061 S cm-1Text
Rounded Reported
5 (16583) · Results and Discussion · Figure 5
<Na2MoS4> electronic activation energyMarked as a best value within this paper<Na2MoS4>_eon = 136 meVText
Exact Reported
6 (16584) · Results and Discussion · Figure 5

DC I-V and EIS MIEC analysis

Na2MoS4.3.5H2O cold-pressed pellet · Pellet

Two-probe DC I-V and EIS over -60 to 80 C; EIS fitted with transmission-line model to separate ionic and electronic rails.

Temperature
293
Atmosphere
Ar-filled Swagelok cell in climatic chamber
Geometry
cold-pressed pellet between carbon-coated aluminium foils
Context
pristine hydrated control pellet
Measurement source
6 (16584) · Results and Discussion · Figure 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Na2MoS4.3.5H2O electronic conductivity at 20 Csigma_eon = 9.27 x 10^-8 S cm^-1 at 20 C9.27e-8 S cm-1Text
Exact Reported
6 (16584) · Results and Discussion · Figure 5
Na2MoS4.3.5H2O electronic activation energyNa2MoS4.3.5H2O_eon = 742 meVText
Exact Reported
6 (16584) · Results and Discussion · Figure 5
Na2MoS4.3.5H2O ionic activation energyNa2MoS4.3.5H2O_ion = 986 meVText
Exact Reported
6 (16584) · Results and Discussion · Figure 5
Na2MoS4.3.5H2O ionic conductivity at 20 Csigma_ion = 1.35 x 10^-6 S cm^-1 at 20 C0.00000135 S cm-1Text
Exact Reported
6 (16584) · Results and Discussion · Figure 5