Sensing Application — A Humidity-Induced Large Electronic Conductivity Change of 107 on a Metal-Organic Framework for Highly Sensitive Water Detection

Measurement evidence

Sensing Application

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

1 measurement group · 13 results

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

DC chemiresistive humidity sensing

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

Humidity sensing from 5-100 percent RH and 0-5 percent RH at room temperature, 1 V bias, 600 sccm flow for 5-100 percent RH

Temperature: 298
Atmosphere: dry air/humidified air for 5-100 percent RH; dry N2 carrier for 0-5 percent RH
Geometry: drop-cast MOF on Ad-Pd interdigital electrodes on Al2O3 substrate
Context: target sensor compared with MIL-125, NH2-MIL-125 and (NH2)2-MIL-125 sensors
Measurement source: 4 · S1.4 Evaluation of Sensing Performance · Figures 3, S10-S16; Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
experimental limit of detection in ppm H2OMarked as a best value within this paper	20 ppm H2O	—	—	Text Rounded Reported	4 · Results · Figure 3b
experimental limit of detectionMarked as a best value within this paper	0.06% RH	—	—	SI Table Exact Reported	12 · S2.7 Chemiresistor Sensor Performance · Table S3
humidity sensing range upper boundMarked as a best value within this paper	100% RH	—	—	Text Exact Reported	4 · Results · Figure 3a; Table S3
humidity sensing range lower boundMarked as a best value within this paper	0.06% RH	—	—	Text Exact Reported	4 · Results · Figure 3b; Table S3
recovery time	0.3 min	—	—	Text Exact Reported	4 · Results · Figure 3b inset
repeatability coefficient of variation	CV as low as 6.7%	—	—	Text Exact Reported	4 · Results · Figure S14
response at 100% RHMarked as a best value within this paper	1.6 x 10^10 / 100 RH%	—	—	SI Table Rounded Reported	12 · S2.7 Chemiresistor Sensor Performance · Table S3
response at 50% RHMarked as a best value within this paper	2.3 x 10^7	—	—	Text Rounded Reported	4 · Results · Figure 4b; Table S3
response at 5% RHMarked as a best value within this paper	1.6 x 10^3	—	—	Text Rounded Reported	4 · Results · Figure 4b; Table S3
response at 90% RHMarked as a best value within this paper	1.2 x 10^8	—	—	Text Rounded Reported	4 · Results · Figure 4b; Table S3
response time	4.8 min	—	—	Text Exact Reported	4 · Results · Figure 3b inset
selectivity factor against strongest interference	as high as 13	—	—	Text Rounded Reported	4 · Results · Figures 3c, S12, S13
long-term stability test duration	tested for over 8 months	—	over	Text Approximate	4 · Results · Figure 3c-down