Electrical Transport — Mixed Ionic and Electronic Conductivity in a Tetrathiafulvalene-Phosphonate Metal-Organic Framework

3 measurement groups · 10 results

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

Pressed TTFTP-La pellet for electronic conductivity · Pellet

296 K, ambient atmosphere, 60% RH; linear I-V curve measured in dark probe-station chamber.

Temperature: 296
Atmosphere: ambient atmosphere, 60% RH
Geometry: pressed pellet/cuboid with four parallel copper-wire contacts and carbon paste
Context: pristine framework pellet
Measurement source: 65 · main text · Table S3; Figure S25

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Four-probe I-V response	linear I-V curve from approximately -25 to +25 V	—	visual voltage span approximately +/-25 V	Visual Estimate Approximate	S25 · Electrical conductivity measurements · Figure S25
Room-temperature electrical conductivityMarked as a best value within this paper	7.2 × 10^-6 S cm^-1 at 296 K, ambient atmosphere, 60% RH	—	—	Text Exact Reported	65 · main text · Table S3

Pressed TTFTP-La pellet for electronic conductivity · Pellet

250-400 K under high vacuum approximately 10^-5 Torr; temperature controlled by heater and liquid nitrogen flow.

Temperature: 250-400
Atmosphere: high vacuum (~10^-5 Torr)
Geometry: pressed pellet geometry similar to four-probe setup; two-probe method
Context: pristine framework pellet
Measurement source: S4 · General methods and materials · Figure 2; Figure S25

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Electronic transport activation energy	EA = 0.24 eV	—	—	Text Exact Reported	65 · main text · Figure 2
Room-temperature high-vacuum conductivity	2.9 × 10^-6 S cm^-1 at 300 K under high vacuum	—	—	Text Exact Reported	65 · main text · Figure 2
Variable-temperature conductivity range	approximately 4.5 × 10^-7 to 3 × 10^-5 S cm^-1 between 250 and 400 K	—	visual range approximately 4.5e-7 to 3e-5 S cm-1	Visual Estimate Approximate	65 · Figure caption · Figure 2

Pressed TTFTP-La pellet for proton conductivity · Pellet

Pellets equilibrated 3 h at 35%, 65% or 95% RH; 298-333 K; 100 mV sine amplitude; 500 kHz to 500 Hz.

Temperature: 298-333
Atmosphere: controlled relative humidity, 35%, 65%, 95% RH
Geometry: pressed pellet in temperature/humidity chamber
Context: pristine framework pellet
Measurement source: S4 · General methods and materials · Figures 4 and S27-S29

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Proton conductivity at 35% RH and room temperature	3.1 × 10^-6 S cm^-1 at 35% RH and room temperature	—	—	Text Exact Reported	65 · main text · Figure 4
Maximum reported proton conductivityMarked as a best value within this paper	4.9 × 10^-5 S cm^-1 at 95% RH and 333 K	—	—	Text Exact Reported	65 · main text · Figure 4
Proton-conduction activation energy at 35% RH	0.12 eV	—	—	Text Exact Reported	65 · main text · Figure 4
Proton-conduction activation energy at 65% RH	0.15 eV	—	—	Text Exact Reported	65 · main text · Figure 4
Proton-conduction activation energy at 95% RH	0.34 eV	—	—	Text Exact Reported	65 · main text · Figure 4