Sensing Application — Chemiresistive Sensor Arrays from Conductive 2D Metal-Organic Frameworks

Measurement evidence

Sensing Application

Chemiresistive Sensor Arrays from Conductive 2D Metal-Organic Frameworks · Campbell M.G., Liu S.F., Swager T.M. et al. · Journal of the American Chemical Society · 2015 · 13780-13783

6 measurement groups · 56 results

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

Chemiresistive amine sensing concentration-dependence

Drop-cast Cu3(HITP)2 chemiresistor on interdigitated Au/corundum · Electrode

Cu3(HITP)2 device response to n-butylamine at 200 ppm and 2500 ppm; inset compares Et3N and nBuNH2 at 200 ppm.

Geometry: Drop-cast Cu3(HITP)2 chemiresistor.
Context: pristine framework device
Measurement source: main p003 / article page 13782 · Results · Figure 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu3(HITP)2 Et3N response at 200 ppm	approximately -1.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p003 / article page 13782 · Figure 4 · Figure 4 inset
Cu3(HITP)2 nBuNH2 response at 200 ppm	turn-on, approximately +0.9% maximum response	—	—	Figure Axis Approximate	main p003 / article page 13782 · Results · Figure 4
Cu3(HITP)2 nBuNH2 response at 2500 ppm	turn-off, approximately -0.7% minimum response	—	—	Figure Axis Approximate	main p003 / article page 13782 · Results · Figure 4

EtOH sensing comparison for drawn versus drop-cast Ni3(HITP)2 devices

Mechanically drawn Ni3(HITP)2 chemiresistor on Au/weigh paper · Electrode

Comparison at 200 ppm EtOH; drawn-on paper devices compared with drop-cast interdigitated-electrode devices.

Geometry: Mechanically drawn Ni3(HITP)2 on Au/paper versus drop-cast device.
Context: pristine framework devices
Measurement source: SI S9 · Figure S4 · Figure S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Drawn Ni3(HITP)2 EtOH response at 200 ppm	approximately 4.4%	—	error bar shown; not numerically labelled	Figure Axis Approximate	SI S9 · Figure S4 · Figure S4
Drop-cast Ni3(HITP)2 EtOH response at 200 ppm	approximately 3.7%	—	error bar shown; not numerically labelled	Figure Axis Approximate	SI S9 · Figure S4 · Figure S4

Linear discriminant analysis (LDA) of MOF-array sensing responses

Drop-cast MOF 1-3 chemiresistor array · Electrode

Jack-knifed classification matrix for five VOC classes using the MOF 1-3 sensing array.

Geometry: Array-level statistical treatment of chemiresistive responses.
Context: array of pristine framework chemiresistors
Measurement source: main p003 / article page 13782 · Results · Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
LDA alcohol-class accuracy	100%	—	—	Table Exact Reported	main p003 / article page 13782 · Table 1 · Table 1
LDA alkane-class accuracy	100%	—	—	Table Exact Reported	main p003 / article page 13782 · Table 1 · Table 1
LDA amine-class accuracy	92%	—	—	Table Exact Reported	main p003 / article page 13782 · Table 1 · Table 1
LDA aromatic-class accuracy	100%	—	—	Table Exact Reported	main p003 / article page 13782 · Table 1 · Table 1
LDA ketone/ether-class accuracy	75%	—	—	Table Exact Reported	main p003 / article page 13782 · Table 1 · Table 1
Overall jack-knifed LDA classification accuracyMarked as a best value within this paper	92%	—	—	Table Exact Reported	main p003 / article page 13782 · Results · Table 1

EtOH sensing response versus device resistance

Drop-cast Ni3(HITP)2 chemiresistor on interdigitated Au/corundum · Electrode

Ni MOF 3 devices exposed to EtOH at 200 ppm for 30 s; response plotted as a function of device resistance.

Geometry: Drop-cast Ni3(HITP)2 chemiresistors with varied deposited MOF amount/resistance.
Context: pristine framework device
Measurement source: SI S12 · Figure S7 · Figure S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni3(HITP)2 device resistance range tested for EtOH response	spanning three orders of magnitude; plotted points from about 1 to 200 kOhm	—	—	Text Range	SI S5 · Discussion of Sensing Mechanism · Figure S7
Effect of device resistance on Ni3(HITP)2 EtOH response	Device resistance did not have a meaningful impact on DeltaG/G0; plotted responses about 4.1-4.7%.	—	—	Text Qualitative	SI S5 · Discussion of Sensing Mechanism · Figure S7

Principal component analysis (PCA) of MOF-array sensing responses

Drop-cast MOF 1-3 chemiresistor array · Electrode

PCA groups VOC responses by functional group class.

Geometry: Array-level statistical treatment of chemiresistive responses.
Context: array of pristine framework chemiresistors
Measurement source: main p003 / article page 13782 · Results · Figure 3 and Figure S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PCA principal component 1 variance	56%	—	—	Figure Axis Exact Reported	main p003 / article page 13782 · Figure 3 · Figure 3
PCA principal component 2 variance	31%	—	—	Figure Axis Exact Reported	main p003 / article page 13782 · Figure 3 · Figure 3
PCA principal component 3 variance	approximately 13%	—	—	Figure Axis Approximate	SI S13 · Figure S8 · Figure S8

Chemiresistive VOC sensing response

Drop-cast MOF 1-3 chemiresistor array · Electrode

Sensor devices exposed for 30 s to 200 ppm VOC vapour; response averaged from 12 measurements (4 exposures to 3 separate devices for each MOF).

Atmosphere: Nitrogen carrier/dilution gas for analyte delivery
Geometry: MOF films on interdigitated gold electrodes in PTFE enclosure; 0.100 V bias applied.
Context: array of pristine framework chemiresistors
Measurement source: main p002 / article page 13781 · Results · Figure 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Acetone response, Cu3(HHTP)2	approximately -1.8%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Acetone response, Cu3(HITP)2	approximately -0.6%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Acetone response, Ni3(HITP)2	approximately +1.9%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Aliphatic hydrocarbon responses, MOFs 1-3	All three materials show no appreciable response to aliphatic hydrocarbons; individual bars are near 0%, with Ni3(HITP)2 small positive bars roughly 0.3-0.5%.	—	—	Text Qualitative	main p002 / article page 13781 · Results · Figure 2
Benzene response, Cu3(HHTP)2	approximately -0.1%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Benzene response, Cu3(HITP)2	approximately 0.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Benzene response, Ni3(HITP)2	approximately +2.6%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Dioxane response, Cu3(HHTP)2	approximately -5.8%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Dioxane response, Cu3(HITP)2	approximately -2.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Dioxane response, Ni3(HITP)2	approximately -0.8%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Et3N response, Cu3(HHTP)2	approximately -1.4%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Et3N response, Cu3(HITP)2	approximately -1.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p003 / article page 13782 · Figure 4 · Figure 4 inset
Et3N response, Ni3(HITP)2	approximately 0.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
EtOH response, Cu3(HHTP)2	approximately -2.4%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
EtOH response, Cu3(HITP)2	approximately -0.6%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
EtOH response, Ni3(HITP)2	approximately +3.8%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
iPr2NH response, Cu3(HHTP)2	approximately -1.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
iPr2NH response, Cu3(HITP)2	approximately -0.9%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
iPr2NH response, Ni3(HITP)2	approximately -0.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
iPrOH response, Cu3(HHTP)2	approximately -5.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
iPrOH response, Cu3(HITP)2	approximately -1.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
iPrOH response, Ni3(HITP)2	approximately +3.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Methyl ethyl ketone response, Cu3(HHTP)2	approximately -1.7%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Methyl ethyl ketone response, Cu3(HITP)2	approximately -1.6%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Methyl ethyl ketone response, Ni3(HITP)2	approximately +1.8%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
MeOH response, Cu3(HHTP)2	approximately -9.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
MeOH response, Cu3(HITP)2	approximately -1.7%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
MeOH response, Ni3(HITP)2	approximately +4.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
nBuNH2 response, Cu3(HHTP)2	approximately -3.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
nBuNH2 response, Cu3(HITP)2 at 200 ppm	approximately +0.5%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p003 / article page 13782 · Results · Figure 4
nBuNH2 response, Ni3(HITP)2	approximately -0.9%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
p-Xylene response, Cu3(HHTP)2	approximately -0.3%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
p-Xylene response, Cu3(HITP)2	approximately 0.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
p-Xylene response, Ni3(HITP)2	approximately +1.2%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
THF response, Cu3(HHTP)2	approximately -2.2%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
THF response, Cu3(HITP)2	approximately -1.6%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
THF response, Ni3(HITP)2	approximately +0.9%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Toluene response, Cu3(HHTP)2	approximately -0.4%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Toluene response, Cu3(HITP)2	approximately 0.0%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2
Toluene response, Ni3(HITP)2	approximately +1.8%	—	error bar shown; not numerically labelled	Figure Axis Approximate	main p002 / article page 13781 · Figure 2 · Figure 2