cMOF Evidence Base
Electrical Transport — A Humidity-Induced Large Electronic Conductivity Change of 107 on a Metal-Organic Framework for Highly Sensitive Water Detection

Measurement evidence

Electrical Transport

A Humidity-Induced Large Electronic Conductivity Change of 107 on a Metal-Organic Framework for Highly Sensitive Water Detection · Deng W.-H., Li Q.-H., Chen J. et al. · Angewandte Chemie - International Edition · 2023 · e202305977

3 measurement groups · 12 results

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

two-probe I-V curve

Electrical conductivity

Drop-cast H2SO4@(NH2)2-MIL-125 humidity sensor · Electrode

Current-voltage curve under 5 percent RH at room temperature

Temperature
298
Atmosphere
5 percent RH
Geometry
drop-cast sensor on interdigital electrodes
Context
target sensor
Measurement source
11 · S2.7 Chemiresistor Sensor Performance · Figure S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
I-V linearitylinear I-V curve indicated good ohmic contact——Text
Qualitative		4 · Results · Figure S9

DC Wagner polarisation

(NH2)2-MIL-125 Wagner film · Thin Film

MIL-125 and (NH2)2-MIL-125 time-dependent DC controls under varied RH

Temperature
298
Atmosphere
0-100 percent RH
Geometry
Pt ion-blocking electrodes
Context
pristine framework controls
Measurement source
3 · Results · Figure S6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
(NH2)2-MIL-125 electronic current increase from 0-20% RHIe of (NH2)2-MIL-125 increased by 4.3 x 10^3 times——Text
Rounded Reported		3 · Results · Figure S6
MIL-125 electronic current increase from 0-20% RHIe of MIL-125 increased by 38 times——Text
Rounded Reported		3 · Results · Figure S6
(NH2)2-MIL-125 te at 10% RH56%——Text
Rounded Reported		3 · Results · Figure 2c
MIL-125 te at 10% RH28%——Text
Rounded Reported		3 · Results · Figure 2c

DC Wagner polarisation

H2SO4@(NH2)2-MIL-125 thick film with Pt electrodes · Thin Film

Current versus time under 0-100 percent RH, 1 V bias, 25 C, Pt ion-blocking electrodes

Temperature
298
Atmosphere
0-100 percent RH
Geometry
thick film/membrane contacted by Pt electrodes in 2-probe configuration
Context
target guest-loaded film
Measurement source
4 · S1.5 Measurements of electronic conduction contribution · Figure 2a; Figure S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
electronic current at 100% RHMarked as a best value within this paperIe reached 3.9 x 10^-6 A at 100% RH——Text
Rounded Reported		3 · Results · Figure 2b
electronic current change across 0-100% RHMarked as a best value within this paperIe varied by 10^7 times from 0% to 100% RH——Text
Rounded Reported		3 · Results · Figure 2b
electronic current in dry airIe was 1.4 x 10^-13 A at dry air—approx.Text
Approximate		3 · Results · Figure 2b
electronic current increase from dry air to 20% RHIe sharply increased by approx. 5 x 10^5 times at 20% RH—approx.Text
Approximate		3 · Results · Figure 2b
electronic transference number at 20% RHte increased from 2% to 67%——Text
Rounded Reported		3 · Results · Figure 2c
electronic transference number in dry airte was approx. 2% at dry air—approx.Text
Approximate		3 · Results · Figure 2c
peak electronic transference numberMarked as a best value within this paperte peaked at 75% at 10% RH——Text
Rounded Reported		3 · Results · Figure 2c