Sensing Application — Drawing sensors with ball-milled blends of metal-organic frameworks and graphite

7 measurement groups · 142 results

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

MeOH sensing comparison of pure Cu3HHTP2, ball-milled Cu3HHTP2 and Cu3HHTP2/graphite

paper chemiresistor with Cu3HHTP2/graphite · Electrode

three ceramic sensing devices per sample, dosed with MeOH 4 x 500 ppm; response in Figure S14

Temperature: room temperature
Atmosphere: N2 with MeOH vapour
Geometry: commercial ceramic devices with Au interdigitated electrodes
Context: pristine Cu3HHTP2 vs Cu3HHTP2/graphite composite
Measurement source: S18 · XII. Comparison in Sensing Performance · Figure S14

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
commercial ceramic device interdigitated gold-electrode spacing for blend tests	~220 um	—	—	Text Approximate	S18 · XII. Comparison in Sensing Performance · Figure S1
Cu3HHTP2 / ball-milled Cu3HHTP2 / Cu3HHTP2-G MeOH response comparison	bar values visible in Figure S14B: pure Cu3HHTP2 about 4.0%, ball-milled Cu3HHTP2 about 3.6%, Cu3HHTP2/graphite about 1.9%	—	—	Visual Estimate Approximate	S8 · IV. 4-Point Probe Measurements · Figure S14; Table S11
Table S11 average SNR for ball_milled_cu3hhtp2	21.5	—	—	SI Table Exact Reported	S28 · XXII. Signal-to-Noise Analysis · Table S11
Table S11 average SNR for graphite_blend	5.5	—	—	SI Table Exact Reported	S28 · XXII. Signal-to-Noise Analysis · Table S11
Table S11 average SNR for pure_cu3hhtp2	8.95	—	—	SI Table Exact Reported	S28 · XXII. Signal-to-Noise Analysis · Table S11
Table S11 SNR standard deviation for ball_milled_cu3hhtp2	18.12	—	—	SI Table Exact Reported	S28 · XXII. Signal-to-Noise Analysis · Table S11
Table S11 SNR standard deviation for graphite_blend	1.36	—	—	SI Table Exact Reported	S28 · XXII. Signal-to-Noise Analysis · Table S11
Table S11 SNR standard deviation for pure_cu3hhtp2	5.68	—	—	SI Table Exact Reported	S28 · XXII. Signal-to-Noise Analysis · Table S11

batch-to-batch chemiresistive reproducibility

two independently prepared Cu3HHTP2/graphite paper-device batches · Electrode

two independently prepared 200 mg-scale Cu3HHTP2/graphite batches; three paper devices per batch; exposures to NH3 80 ppm and MeOH 500 ppm

Temperature: room temperature
Atmosphere: N2 carrier with NH3 or MeOH
Geometry: paper devices
Context: Cu3HHTP2/graphite composite
Measurement source: S22 · XVI. Batch-to-Batch Influence · Figure S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu3HHTP2/G batch 1 MeOH response	1.3 +/- 0.1%	—	+/- 0.1%	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 1 NH3 95% CI upper bound	2.4%	—	—	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 1 NH3 95% CI lower bound	2.1%	—	—	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 1 NH3 response	2.3 +/- 0.2%	—	+/- 0.2%	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 2 MeOH response	1.8 +/- 0.4%	—	+/- 0.4%	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 2 NH3 95% CI upper bound	2.4%	—	—	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 2 NH3 95% CI lower bound	1.3%	—	—	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
Cu3HHTP2/G batch 2 NH3 response	1.8 +/- 0.5%	—	+/- 0.5%	Text Exact Reported	S22 · XVI. Batch-to-Batch Influence · Figure S18
CU3HHTP2/G batch1 average response to H2S	0.76	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S7
CU3HHTP2/G batch1 average response to NH3	3.99	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S7
CU3HHTP2/G batch1 average response to NO	-6.28	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S7
CU3HHTP2/G batch2 average response to H2S	1.21	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S7
CU3HHTP2/G batch2 average response to NH3	2.29	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S7
CU3HHTP2/G batch2 average response to NO	-1.36	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S7

scale-dependent morphology and NH3 response

Cu3HHTP2/graphite small- and large-scale synthesis comparison · Electrode

Cu3HHTP2 MOFs prepared on 200 mg or 800 mg HHTP scale; 90 mg MOF plus 10 mg graphite; response to 80 ppm NH3

Temperature: room temperature
Atmosphere: N2 with NH3
Geometry: paper devices
Context: Cu3HHTP2/graphite composite
Measurement source: S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
large-scale Cu3HHTP2/G NH3 response 95% CI upper bound	4.4%	—	—	Text Exact Reported	S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19
large-scale Cu3HHTP2/G NH3 response 95% CI lower bound	3.0%	—	—	Text Exact Reported	S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19
Cu3HHTP2/G NH3 response from 800 mg HHTP-scale synthesis	3.7 +/- 0.6%	—	+/- 0.6%	Text Exact Reported	S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19
small-scale Cu3HHTP2/G NH3 response 95% CI upper bound	2.7%	—	—	Text Exact Reported	S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19
small-scale Cu3HHTP2/G NH3 response 95% CI lower bound	2.3%	—	—	Text Exact Reported	S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19
Cu3HHTP2/G NH3 response from 200 mg HHTP-scale synthesis	2.5 +/- 0.2%	—	+/- 0.2%	Text Exact Reported	S23 · XVII. Scale-Dependent Cu3HHTP2 MOF Morphology and Sensing Response · Figure S19

principal component analysis of sensor array peak heights

paper chip with four M3HHTP2/graphite blends · Electrode

peak heights from Figure 3A calculated by subtracting highest point value from baseline; Analyse-it in Microsoft Excel; analytes NH3, H2S, NO at 80 ppm and H2O at 7000 ppm

Temperature: room temperature
Atmosphere: N2 carrier
Geometry: paper array
Context: MOF/graphite composite array
Measurement source: 10 of 17 · Results 3.4.2 · Figure 3D; Tables S5-S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PCA analyte discrimination	distinguished NH3, H2S, NO (80 ppm) and H2O (7000 ppm)	—	—	Qualitative Qualitative	10 of 17 · Results 3.4.2 · Figure 3D
variance accounted for by first two principal components	100%	—	—	Text Exact Reported	10 of 17 · Results 3.4.2 · Figure 3D; Tables S5-S6
Table S5 array 1 CO3HHTP2/G response to H2O	1.27	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CO3HHTP2/G response to H2S	0.01	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CO3HHTP2/G response to NH3	2.78	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CO3HHTP2/G response to NO	-2.45	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CU3HHTP2/G response to H2O	2.12	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CU3HHTP2/G response to H2S	0.95	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CU3HHTP2/G response to NH3	2.41	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 CU3HHTP2/G response to NO	-1.67	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 FE3HHTP2/G response to H2O	1.41	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 FE3HHTP2/G response to H2S	-0.23	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 FE3HHTP2/G response to NH3	2.4	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 FE3HHTP2/G response to NO	-1.66	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 NI3HHTP2/G response to H2O	2.38	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 NI3HHTP2/G response to H2S	0.44	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 NI3HHTP2/G response to NH3	1.31	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 1 NI3HHTP2/G response to NO	-1.77	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CO3HHTP2/G response to H2O	0.96	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CO3HHTP2/G response to H2S	0.25	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CO3HHTP2/G response to NH3	2.67	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CO3HHTP2/G response to NO	-2.42	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CU3HHTP2/G response to H2O	0.97	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CU3HHTP2/G response to H2S	0.68	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CU3HHTP2/G response to NH3	2.34	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 CU3HHTP2/G response to NO	-1.55	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 FE3HHTP2/G response to H2O	2.29	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 FE3HHTP2/G response to H2S	0.13	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 FE3HHTP2/G response to NH3	2.27	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 FE3HHTP2/G response to NO	-1.65	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 NI3HHTP2/G response to H2O	2.2	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 NI3HHTP2/G response to H2S	0.01	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 NI3HHTP2/G response to NH3	1.1	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 2 NI3HHTP2/G response to NO	-1.96	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CO3HHTP2/G response to H2O	0.56	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CO3HHTP2/G response to H2S	0.23	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CO3HHTP2/G response to NH3	2.55	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CO3HHTP2/G response to NO	-1.36	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CU3HHTP2/G response to H2O	1.86	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CU3HHTP2/G response to H2S	0.65	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CU3HHTP2/G response to NH3	2.12	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 CU3HHTP2/G response to NO	-0.84	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 FE3HHTP2/G response to H2O	1.83	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 FE3HHTP2/G response to H2S	0.35	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 FE3HHTP2/G response to NH3	2.12	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 FE3HHTP2/G response to NO	-0.9	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 NI3HHTP2/G response to H2O	4.1	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 NI3HHTP2/G response to H2S	0.24	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 NI3HHTP2/G response to NH3	1.17	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S5 array 3 NI3HHTP2/G response to NO	-1.0	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S5
Table S6 array 1 H2O PC1 score	2.36	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 H2O PC2 score	-0.74	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 H2S PC1 score	-0.63	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 H2S PC2 score	-0.36	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 NH3 PC1 score	3.25	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 NH3 PC2 score	1.14	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 NO PC1 score	-4.99	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 1 NO PC2 score	-0.03	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 H2O PC1 score	2.17	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 H2O PC2 score	-1.26	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 H2S PC1 score	-0.5	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 H2S PC2 score	0.39	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 NH3 PC1 score	3.17	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 NH3 PC2 score	0.94	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 NO PC1 score	-4.83	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 2 NO PC2 score	-0.07	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 H2O PC1 score	2.34	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 H2O PC2 score	2.21	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 H2S PC1 score	-0.94	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 H2S PC2 score	-0.5	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 NH3 PC1 score	2.32	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 NH3 PC2 score	-1.33	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 NO PC1 score	-3.72	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6
Table S6 array 3 NO PC2 score	-0.38	—	—	SI Table Exact Reported	S25 · XIX. Principle Component Analysis · Table S6

chemiresistive response to 80 ppm NH3, NO and H2S

paper chip with four M3HHTP2/graphite blends · Electrode

paper chip containing all four blends in triplicate plus graphite control; gases diluted in N2; response as -DeltaG/G0 (%)

Temperature: room temperature
Atmosphere: dry N2 with 80 ppm analyte
Geometry: paper devices with Au electrode gaps
Context: MOF/graphite composite array
Measurement source: S19 · XIII. Analysis of Concentration Dependence · Figure 3A-B; Figure S15

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
array-average response to NH3 at 80 ppm	2.1 +/- 0.6% resistance increase	—	+/- 0.6%	Text Exact Reported	10 of 17 · Results 3.4.2 · Figure 3
array-average response to NO at 80 ppm	-1.8 +/- 0.4% response (decrease in resistance)	—	+/- 0.4%	Text Exact Reported	10 of 17 · Results 3.4.2 · Figure 3
Cu3HHTP2/graphite response to H2S at 80 ppm	1.0 +/- 0.5% decrease in resistance	—	+/- 0.5%	Text Exact Reported	10 of 17 · Results 3.4.2 · Figure 3
Cu3HHTP2/G H2S calibration R value	R = 0.9316	—	—	Figure Axis Approximate	9 of 17 · Figure 3B · Figure 3B
Cu3HHTP2/G NH3 calibration R value	R = 0.9670	—	—	Figure Axis Approximate	9 of 17 · Figure 3B · Figure 3B
Cu3HHTP2/G NO calibration R value	R = 0.9611	—	—	Figure Axis Approximate	9 of 17 · Figure 3B · Figure 3B
FE3HHTP2/G batch1 response to H2S	not applicable (no response)	—	—	Qualitative Qualitative	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S10
FE3HHTP2/G batch1 average response to NH3	3.5	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S10
FE3HHTP2/G batch1 average response to NO	-8.47	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S10
FE3HHTP2/G batch2 response to H2S	not applicable (no response)	—	—	Qualitative Qualitative	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S10
FE3HHTP2/G batch2 average response to NH3	2.26	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S10
FE3HHTP2/G batch2 average response to NO	-1.4	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S10
NI3HHTP2/G batch1 response to H2S	not applicable (no response)	—	—	Qualitative Qualitative	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S8
NI3HHTP2/G batch1 average response to NH3	3.99	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S8
NI3HHTP2/G batch1 average response to NO	-6.28	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S8
NI3HHTP2/G batch2 response to H2S	not applicable (no response)	—	—	Qualitative Qualitative	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S8
NI3HHTP2/G batch2 average response to NH3	2.29	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S8
NI3HHTP2/G batch2 average response to NO	-1.36	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S8
CO3HHTP2/G batch1 response to H2S	not applicable (no response)	—	—	Qualitative Qualitative	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S9
CO3HHTP2/G batch1 average response to NH3	3.01	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S9
CO3HHTP2/G batch1 average response to NO	-7.83	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S9
CO3HHTP2/G batch2 response to H2S	not applicable (no response)	—	—	Qualitative Qualitative	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S9
CO3HHTP2/G batch2 average response to NH3	2.66	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S9
CO3HHTP2/G batch2 average response to NO	-2.08	—	—	SI Table Exact Reported	S26-S27 · XX. Variance Device:Device and Batch:Batch · Table S9

concentration-dependent chemiresistive response and LOD

paper chip with four M3HHTP2/graphite blends · Electrode

varying NH3, NO and H2S concentration 5-80 ppm for LOD; NH3 saturation/dynamic range evaluated to 1200 ppm in main text and 8000 ppm in SI caption

Temperature: room temperature
Atmosphere: dry N2 with target analyte
Geometry: paper array
Context: MOF/graphite composite array
Measurement source: 10 and 14 of 17 · Results 3.4.3 / Supplementary materials caption · Figure 3B-C; Figures S15-S16

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu3HHTP2/graphite NH3 saturation onset	approached full saturation at 100 ppm NH3	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3C
limit of detection for H2S	35 ppm	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3B
limit of detection for NH3	19 ppm	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3B
limit of detection for NO	17 ppm	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3B
NH3 dynamic range upper bound	1200 ppm	—	—	Text Exact Reported	S20 · XIV. Saturation Response of Sensor Array with NH3 · Figure 3C; Figure S16
NH3 dynamic range lower bound	5 ppm	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3C
linear concentration-response upper bound	80 ppm	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3B
linear concentration-response lower bound	5 ppm	—	—	Text Exact Reported	10 of 17 · Results 3.4.3 · Figure 3B

chemiresistive gas/vapour exposure protocol

paper chip with four M3HHTP2/graphite blends · Electrode

0.1 V applied; current monitored by multichannel potentiostat; baseline N2, diluted analyte exposure for 5 min, N2 recovery for 10 min; room temperature

Temperature: room temperature
Atmosphere: dry N2 carrier; diluted analytes
Geometry: Teflon enclosure; paper/ceramic devices with Au electrodes
Context: MOF/graphite composite devices
Measurement source: 4-5 of 17 · Materials 2.4-2.5 · Equations 1-2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
applied sensing voltage	0.1 V	—	—	Text Exact Reported	4 of 17 · Materials 2.4
analyte exposure time	5 min	—	—	Text Exact Reported	4 of 17 · Materials 2.4
higher NH3 concentration maximum for upper-limit response	1250 ppm	—	—	Text Exact Reported	4 of 17 · Materials 2.4
N2 recovery time	10 min	—	—	Text Exact Reported	4 of 17 · Materials 2.4
standard gas concentration upper bound	80 ppm	—	—	Text Exact Reported	4 of 17 · Materials 2.4
standard gas concentration lower bound	0.5 ppm	—	—	Text Exact Reported	4 of 17 · Materials 2.4
MeOH/EtOH/acetone vapour concentration	500 ppm	—	—	Text Exact Reported	4 of 17 · Materials 2.4
water vapour concentration	7000 ppm	—	—	Text Exact Reported	4 of 17 · Materials 2.4