cMOF Evidence Base
Sensing Application — High-Performance H2S Sensors to Detect SF6 Leakage

Measurement evidence

Sensing Application

High-Performance H2S Sensors to Detect SF6 Leakage · Zhao X., Jiang S., Zhang Z. et al. · ACS Sensors · 2024 · 5512-5519

3 measurement groups · 21 results

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

concentration-dependent chemiresistive H2S response and LoD calculation

Co1.8Ni1.2(HITP)2 chemiresistive gas sensor on Au IDE chip · Electrode

H2S concentrations of 1, 3, 5, 7 and 10 ppm in N2 and SF6; LoD from 3*RMSnoise/slope.

Atmosphere
N2 and SF6 background atmospheres
Geometry
Co1.8Ni1.2(HITP)2 on Au IDE chip
Context
target mixed-metal conductive MOF sensor
Measurement source
5 · 2.3. Gas-Sensing Performance · Figure 4g-i and Figure S15
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
tested linear concentration range1-10 ppm H2S——Text
Range		4 · 2.3. Gas-Sensing Performance · Figure 4g,h
linearity R2 in N2Marked as a best value within this paperR2 = 0.999——Text
Exact Reported		5 · 2.3. Gas-Sensing Performance · Figure 4i
linearity R2 in SF6Marked as a best value within this paperR2 = 0.999——Text
Exact Reported		5 · 2.3. Gas-Sensing Performance · Figure 4i
theoretical H2S LoD sensor 1LoD1 = 6.44 ppb——Calculated From Reported
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
theoretical H2S LoD sensor 2LoD2 = 7.69 ppb——Calculated From Reported
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
theoretical H2S LoD sensor 3LoD3 = 12.61 ppb——Calculated From Reported
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
theoretical H2S LoD sensor 4LoD4 = 9.07 ppb——Calculated From Reported
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
theoretical H2S limit of detectionMarked as a best value within this paper8.95 ppb——Text
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
RMS noise sensor 10.093%——Text
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
RMS noise sensor 20.111%——Text
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
RMS noise sensor 30.182%——Text
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
RMS noise sensor 40.131%——Text
Exact Reported		21 · Calculations of theoretical limit of detection (LoD) · Figure S15
linear response slope in N2Marked as a best value within this paper45.49% ppm-1——Text
Exact Reported		5 · 2.3. Gas-Sensing Performance · Figure 4i
linear response slope in SF643.31% ppm-1——Text
Exact Reported		5 · 2.3. Gas-Sensing Performance · Figure 4i

chemiresistive H2S and interfering gas response

Co1.8Ni1.2(HITP)2 chemiresistive gas sensor on Au IDE chip · Electrode

5 ppm H2S and nine interfering gases in SF6 and N2 background atmospheres at room temperature.

Atmosphere
SF6 and N2 background gases
Geometry
Co1.8Ni1.2(HITP)2 on Au IDE chip; response S = (R - R0)/R0
Context
target mixed-metal conductive MOF sensor compared with monometallic and bimetallic controls
Measurement source
4 · 2.3. Gas-Sensing Performance · Figure 4a,b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
maximum baseline standard deviation0.182%——Text
Exact Reported		4 · 2.3. Gas-Sensing Performance · Figure S15
optimal Co:Ni molar ratio for sensingMarked as a best value within this paperCo:Ni = 3:2——Text
Exact Reported		4 · 2.3. Gas-Sensing Performance · Figure 4a,b
H2S response in SF6 at 5 ppmMarked as a best value within this paper235% (5 ppm)——SI Table
Exact Reported		25 · Table S4 · Table S4
Co1.8Ni1.2(HITP)2 response increase versus Ni3(HITP)2Marked as a best value within this paper7.5-fold increase in response to 5 ppm H2S——Text
Exact Reported		4 · 2.3. Gas-Sensing Performance · Figure 4a
response selectivity versus SO27-9 times higher response than SO2——Text
Range		4 · 2.3. Gas-Sensing Performance · Figure 4a,b

60-day cyclic chemiresistive H2S stability test

Co1.8Ni1.2(HITP)2 chemiresistive gas sensor on Au IDE chip · Electrode

Repeated exposure to 5 ppm H2S for 30 min and recovery for 30 min; measurements at 10-day intervals.

Atmosphere
N2 and SF6 background atmospheres
Geometry
Co1.8Ni1.2(HITP)2 on Au IDE chip
Context
target mixed-metal conductive MOF sensor
Measurement source
5 · Figure 4 caption · Figure 4c-e
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
response drift in N2 over 60 daysMarked as a best value within this paperless than 3.27%—less thanText
Exact Reported		4 · 2.3. Gas-Sensing Performance · Figure 4d
response drift in SF6 over 60 daysMarked as a best value within this paperless than 4.13%—less thanText
Exact Reported		4 · 2.3. Gas-Sensing Performance · Figure 4e