Electrical Transport — Proton-electron coupling and mixed conductivity in a hydrogen-bonded coordination polymer

5 measurement groups · 17 results

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

Ni-BAND thin film · Thin Film

Ambient conditions; 25 C and 50% RH.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DC electrical conductivity at ambient 50% RH	0.20 S/cm	—	—	Text Rounded Reported	3 · Results · Fig. 4a

Ni-BAND thin-film Au-electrode device · Electrode

100 Hz to 1 MHz, 0.5 V amplitude, no DC bias; humidity-dependent EIS fitted with TLM.

Temperature: 298
Atmosphere: controlled RH; high-humidity >90% RH used for proton conductivity estimate
Geometry: Au ion-blocking lateral thin-film electrodes
Context: pristine target framework
Measurement source: 9 · Methods · Fig. 4f,h

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Phase I/II EIS regime	semicircular responses without Warburg elements, electron-dominant transport	—	—	Text Qualitative	4 · Results · Fig. 4e,f
Phase III EIS regime	small high-frequency semicircle and Warburg tail, proton-dominant transport	—	—	Text Qualitative	4 · Results · Fig. 4g,h
Ni-BAND proton conductivity from Fig. 1 source data	0.09 S/cm	—	—	SI Table Exact Reported	# sheet Figure1 · Fig. 1 source data
proton conductivity at RH >90%Marked as a best value within this paper	0.09 S/cm, RH >90%	—	—	Text Rounded Reported	5 · Results · Fig. 4h
TLM capacitance fitting parameter C	8.34 x 10^-9 F s^alpha-1 (alpha = 0.639)	—	alpha = 0.639	Caption Exact Reported	6 · Fig. 4 caption · Fig. 4h
TLM proton rail resistance fitting parameter Rp	1.40 x 10^4 ohm	—	—	Caption Exact Reported	6 · Fig. 4 caption · Fig. 4h
TLM Warburg fitting parameter W	7.00 x 10^5 ohm s^-1/2	—	—	Caption Exact Reported	6 · Fig. 4 caption · Fig. 4h

Ni-BAND thin film · Thin Film

Electrical conductivities measured at 298 K across RH levels; source data gives 0, 25, 50, and 75% RH.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
electrical conductivity at RH <10%Marked as a best value within this paper	0.24 S/cm, RH <10%	—	—	Text Rounded Reported	2 · Introduction · Fig. 1
Ni-BAND electrical conductivity from Fig. 1 source data	0.24 S/cm	—	—	SI Table Exact Reported	# sheet Figure1 · Fig. 1 source data
electrical conductivity at 0% RH	0.24 S/cm	—	—	SI Table Exact Reported	# sheet Figure4b · Fig. 4b source data
electrical conductivity at 25% RH	0.232 S/cm	—	—	SI Table Exact Reported	# sheet Figure4b · Fig. 4b source data
electrical conductivity at 50% RH	0.214 S/cm	—	—	SI Table Exact Reported	# sheet Figure4b · Fig. 4b source data
electrical conductivity at 75% RHMarked as a best value within this paper	0.273 S/cm	—	—	SI Table Exact Reported	# sheet Figure4b · Fig. 4b source data

Ni-BAND thin-film Au-electrode device · Electrode

+/-2 V range on Ni-BAND film on SiO2/Si substrate with Au electrodes.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
two-probe current at -2 V	-6.25e-05 A	—	—	SI Table Exact Reported	# sheet Figure4a · Fig. 4a source data
two-probe current at +2 V	6.35e-05 A	—	—	SI Table Exact Reported	# sheet Figure4a · Fig. 4a source data

Ni-BAND thin-film Au-electrode device · Electrode

Arrhenius plot of proton conductivity; linear fit follows Nernst-Einstein equation.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
proton-conduction activation energyMarked as a best value within this paper	0.22 eV	—	—	Text Rounded Reported	5 · Results · Supplementary Fig. 10