Sensing Application — Proton-Conductive 3D LnIII Metal–Organic Frameworks for Formic Acid Impedance Sensing

4 measurement groups · 12 results

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

ZZU-1 tablet impedance sensor · Pellet

Home-made sensing device; tablets between Pt sheets; 25 deg C; 15 min exposure; pure water control

Temperature: 298
Atmosphere: formic acid vapour generated from aqueous solutions
Geometry: tablet sandwiched between Pt sheets
Context: pristine framework
Measurement source: 8 · Experimental Section - Gas-Sensing Characterization · Figure 8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ZZU-1 formic acid detection limitMarked as a best value within this paper	0.012 M	—	—	Text Exact Reported	6 · Results and Discussion · Figure 8
ZZU-1 formic acid linear response lower bound	0.012-0.34 M	—	—	Text Range	6 · Results and Discussion · Figures 8c and 8d
ZZU-1 formic acid linear response upper bound	0.012-0.34 M	—	—	Text Range	6 · Results and Discussion · Figures 8c and 8d
ZZU-1 response at 0.34 M formic acid	approximately 34 (R0/Ra)	—	—	Visual Estimate Approximate	6 · Results and Discussion · Figure 8c

ZZU-1 tablet impedance sensor · Pellet

Responses toward MeOH, n-hexane, benzene, toluene, formic acid, EtOH, acetone, acetic acid and butane at 25 deg C; recycling for formic acid response

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Six-day formic acid atmosphere stability	sensitivity remained the same after 0.34 M formic acid atmosphere for six days	—	—	Text Exact Reported	6 · Results and Discussion · Figure S20
Formic acid response recycling	maintained sensitivity for ten repetitions	—	—	Text Exact Reported	6 · Results and Discussion · Figures 9c and 9d
ZZU-1 formic acid selectivity response	approximately 34, much higher than other VOCs	—	—	Visual Estimate Approximate	7 · Results and Discussion · Figure 9a

ZZU-2 tablet impedance sensor · Pellet

Home-made sensing device; tablets between Pt sheets; 25 deg C; 15 min exposure; pure water control

Temperature: 298
Atmosphere: formic acid vapour generated from aqueous solutions
Geometry: tablet sandwiched between Pt sheets
Context: pristine framework
Measurement source: 8 · Experimental Section - Gas-Sensing Characterization · Figure 8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ZZU-2 formic acid detection limitMarked as a best value within this paper	0.02 M	—	—	Text Exact Reported	6 · Results and Discussion · Figure 8
ZZU-2 formic acid linear response lower bound	0.02-0.34 M	—	—	Text Range	6 · Results and Discussion · Figures 8c and 8d
ZZU-2 formic acid linear response upper bound	0.02-0.34 M	—	—	Text Range	6 · Results and Discussion · Figures 8c and 8d
ZZU-2 response at 0.34 M formic acid	approximately 8.6 (R0/Ra)	—	—	Visual Estimate Approximate	6 · Results and Discussion · Figure 8d

ZZU-2 tablet impedance sensor · Pellet

Responses toward MeOH, n-hexane, benzene, toluene, formic acid, EtOH, acetone, acetic acid and butane at 25 deg C; recycling for formic acid response

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ZZU-2 formic acid selectivity response	approximately 8.6, much higher than other VOCs	—	—	Visual Estimate Approximate	7 · Results and Discussion · Figure 9b