Measurement evidence
Solvent-controlled ion-coupled charge transport in microporous metal chalcogenides · McKenzie J., Kempler P.A., Brozek C.K. · Chemical Science · 2022 · 12747-12759
Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.
Dry TMA2FeGe4S10 pressed pellet · Pellet
Voltage steps from -0.2 V to +0.1 V using stainless-steel ion-blocking electrodes.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Electronic transference number te | te = 0.97 | — | — | Text Exact Reported | main p.2, article p.12748 · Results and analysis · Fig. 1a |
| Ionic transference number ti | ti = 0.03 | — | — | Text Exact Reported | main p.2, article p.12748 · Results and analysis · Fig. 1a |
TMA2FeGe4S10 pressed pellet after 10 uL deionised water · Pellet
After 10 uL deionised water; current transient at -0.2 V fitted to Cottrell relation.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Effective diffusion coefficient after water | 2.3 x 10^-14 cm2 s^-1 | — | — | Text Exact Reported | main p.3, article p.12749 · Results and analysis · Fig. S5 |
| Ionic transference number ti after water | ti increases to 0.77 | — | — | Text Exact Reported | main p.3, article p.12749 · Results and analysis · Fig. 1b |
Dry TMA2ZnGe4S10 pressed pellet · Pellet
Voltage steps from -0.2 V to +0.1 V using stainless-steel ion-blocking electrodes.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Effective diffusion coefficient | 1.3 x 10^-20 cm2 s^-1 | — | — | Text Exact Reported | main p.2, article p.12748 · Results and analysis · Fig. S3 |
| Ionic transference number ti | ti = 0.15 | — | — | Text Exact Reported | main p.2, article p.12748 · Results and analysis · Fig. 1c |
TMA2ZnGe4S10 pressed pellet after 10 uL deionised water · Pellet
After 10 uL deionised water; current transient at -0.2 V fitted to Cottrell relation.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Effective diffusion coefficient after water | 1.6 x 10^-13 cm2 s^-1 | — | — | Text Exact Reported | main p.3, article p.12749 · Results and analysis · Fig. S3 |
| Diffusion coefficient improvement after water | ten-million-fold improvement compared to dry Zn | — | — | Text Approximate | main p.3, article p.12749 · Results and analysis · Fig. S3 |
TMA2FeGe4S10 pressed pellet after 10 uL deionised water · Pellet
Steady-state current vs applied potential, conductivities from return scan.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Dry Fe DC conductivity from Fig. S4 | sigma = 0.11 uS/cm | — | — | Figure Axis Exact Reported | SI p.S6 · DC Electrochemical Analyses · Fig. S4a |
| Water-treated Fe DC conductivity | sigma = 0.93 uS/cm | — | — | Figure Axis Exact Reported | SI p.S6 · DC Electrochemical Analyses · Fig. S4b |
TMA2ZnGe4S10 pressed pellet after 10 uL deionised water · Pellet
Steady-state current vs applied potential, conductivities from return scan.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Dry Zn DC conductivity from Fig. S4 | sigma = 0.0011 uS/cm | — | — | Figure Axis Exact Reported | SI p.S6 · DC Electrochemical Analyses · Fig. S4c |
| Water-treated Zn DC conductivityMarked as a best value within this paper | sigma = 1.2 uS/cm | — | — | Figure Axis Exact Reported | SI p.S6 · DC Electrochemical Analyses · Fig. S4d |
tma2 fe ge4 s10 pressed pellet after 10 uL formamide · Pellet
Pressed-pellet I-V curves after solvent addition; solvents included DCM, THF, alcohols, acetone, water/EtOH mixtures, water, formamide.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Dry Fe reference conductivity in Fig. 2 | Dry Fe: 5 x 10^-8 S/cm | — | — | Figure Axis Exact Reported | main p.4, article p.12750 · Results and analysis · Fig. 2a |
tma2 zn ge4 s10 pressed pellet after 10 uL formamide · Pellet
Pressed-pellet I-V curves after solvent addition; solvents included hexanes, toluene, halogenated solvents, alcohols, water/EtOH mixtures, water, formamide.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Dry Zn reference conductivity in Fig. 2 | Dry Zn: 8 x 10^-11 S/cm | — | — | Figure Axis Exact Reported | main p.4, article p.12750 · Results and analysis · Fig. 2a |
| Formamide conductivity improvement vs dry ZnMarked as a best value within this paper | ten-thousand-fold improvement | — | — | Text Approximate | main p.3, article p.12749 · Results and analysis · Fig. 2 |
Dry TMA2FeGe4S10 pressed pellet · Pellet
Pressed-pellet EIS, 0 V vs OCP, fitted with equivalent circuits; includes dry and solvent-treated Fe pellets.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| coupling q n | 0.29 | — | 0.86% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| electronic resistance | 449 kOhm | — | 0.86% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| coupling q n | 0.37 | — | 1.7% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| electronic resistance | 1.13 MOhm | — | 0.93% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| Comparable DC conductivity from Fig. 2 | 0.05 uS/cm | — | — | Text Exact Reported | main p.4, article p.12750 · Results and analysis · Fig. 2 |
| EIS-derived dry Fe electronic conductivity | 0.09 uS/cm | — | — | Text Exact Reported | main p.4, article p.12750 · Results and analysis · Fig. 3a |
| coupling q n | 0.54 | — | 0.38% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| electronic resistance | 240 kOhm | — | 2.7% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| ionic resistance | 44 kOhm | — | 1.12% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| qchem n | 0.25 | — | 2.22% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| coupling q n | 0.37 | — | 1.09% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| electronic resistance | 0.092 MOhm | — | 4.63% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| ionic resistance | 132 kOhm | — | 0.84% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| qchem n | 0.27 | — | 5.95% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| coupling q n | 0.30 | — | 0.9% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| electronic resistance | 145 kOhm | — | 3.07% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| ionic resistance | 42 kOhm | — | 1.16% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| qchem n | 0.32 | — | 6.5% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| coupling q n | 0.30 | — | 0.96% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| electronic resistance | 395 kOhm | — | 2.54% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| ionic resistance | 87 kOhm | — | 2.54% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| qchem n | 0.31 | — | 4.24% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| Average Qchem phase for high-dielectric Fe | n = 0.31 average | — | — | Text Exact Reported | main p.7, article p.12753 · Results and analysis · Fig. 3 |
| Average Qcoupling phase for solvent-treated Fe | n = 0.33 average | — | — | Text Exact Reported | main p.7, article p.12753 · Results and analysis · Fig. 3 |
| contact resistance | 200 Ohm | — | 0.4% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| coupling q n | 0.15 | — | 3.17% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| ionic resistance | 1.3 kOhm | — | 1.39% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
| qchem n | 0.40 | — | 1.45% | SI Table Exact Reported | SI p.S15 · Electrochemical Impedance Analysis · Table S1 |
Dry TMA2ZnGe4S10 pressed pellet · Pellet
Pressed-pellet EIS, 0 V vs OCP, fitted with equivalent circuits; includes dry, solvent-treated, water, and TMABr-treated Zn pellets.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| coupling q n | 0.45 | — | 1.5% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 3.1 MOhm | — | 3.3% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| coupling q n | 0.48 | — | 0.44% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 40 MOhm | — | 0.37% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| qchem n | 0.40 | — | 2.4% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| Dry Zn bulk resistance from x-intercept | 48 MOhm | — | — | Text Exact Reported | main p.5, article p.12751 · Results and analysis · Fig. 4a |
| Dry Zn EIS-derived conductivity | 0.002 uS/cm | — | — | Text Exact Reported | main p.5, article p.12751 · Results and analysis · Fig. 4a |
| coupling q n | 0.50 | — | 0.62% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| electronic resistance | 1.84 MOhm | — | 3.75% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 193 kOhm | — | 1.3% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| qchem n | 0.56 | — | 2.96% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| coupling q n | 0.55 | — | 0.6% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| electronic resistance | 5.93 MOhm | — | 6.7% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 686 kOhm | — | 0.91% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| qchem n | 0.52 | — | 4.2% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| coupling q n | 0.48 | — | 0.84% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| electronic resistance | 1.03 MOhm | — | 5.2% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 55 kOhm | — | 1.39% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| qchem n | 0.62 | — | 2.6% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| coupling q n | 0.48 | — | 0.66% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| electronic resistance | 3.22 MOhm | — | 8.1% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 373 kOhm | — | 1.12% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| qchem n | 0.60 | — | 3.97% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| Average Qchem phase for solvent-treated Zn | n = 0.56 average | — | — | Text Exact Reported | main p.7, article p.12753 · Results and analysis · Fig. 4 |
| Average Qcoupling phase for solvent-treated Zn | n = 0.48 average | — | — | Text Exact Reported | main p.6, article p.12752 · Results and analysis · Fig. 4 |
| coupling q n | 0.50 | — | 1.3% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| electronic resistance | 8.2 kOhm | — | 0.93% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| TMABr-treated Zn electronic resistance | 8000 Ohm | — | — | Text Rounded Reported | main p.7, article p.12753 · Results and analysis · Fig. S12 |
| ionic resistance | 180 Ohm | — | 1.02% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| TMABr-treated Zn ionic resistance after contact correction | 30 Ohm | — | — | Text Rounded Reported | main p.7, article p.12753 · Results and analysis · Fig. S12 |
| qchem n | 0.70 | — | 0.3% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| TMABr-treated Zn Warburg coefficient from Qcoupling | 2.4 x 10^6 Ohm s^-1/2 | — | — | Text Exact Reported | main p.7, article p.12753 · Results and analysis · Fig. S12 |
| contact resistance | 150 Ohm | — | 3.6% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| coupling q n | 0.41 | — | 0.93% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| electronic resistance | 9.6 kOhm | — | 0.97% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| ionic resistance | 1.1 kOhm | — | 0.74% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| qchem n | 0.71 | — | 0.46% | SI Table Exact Reported | SI p.S16 · Electrochemical Impedance Analysis · Table S2 |
| Water-treated Zn Warburg coefficient from Qcoupling | 6.7 x 10^6 Ohm s^-1/2 | — | — | Text Exact Reported | main p.7, article p.12753 · Results and analysis · Fig. S12 |
TMA2FeGe4S10 pressed pellet after ortho-dichlorobenzene · Pellet
I-V curves from 30 to 65 C before and after ortho-dichlorobenzene treatment.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ortho-dichlorobenzene-treated Fe activation barrier | 0.36 (+/-0.01) eV | — | +/-0.01 eV | Figure Axis Exact Reported | SI p.S17 · Temperature Dependent DC Conductivity · Fig. S14 |
| Dry Fe activation barrier in Fig. S14 | 0.37 (+/-0.02) eV | — | +/-0.02 eV | Figure Axis Exact Reported | SI p.S17 · Temperature Dependent DC Conductivity · Fig. S14 |
tma2 fe ge4 s10 pressed pellet after 10 uL formamide · Pellet
I-V curves from 30 to 65 C before and after formamide treatment.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Formamide-treated Fe activation barrier | 0.46 (+/-0.02) eV | — | +/-0.02 eV | Figure Axis Exact Reported | SI p.S18 · Temperature Dependent DC Conductivity · Fig. S15 |
| Dry Fe activation barrier in Fig. S15 | 0.442 (+/-0.004) eV | — | +/-0.004 eV | Figure Axis Exact Reported | SI p.S18 · Temperature Dependent DC Conductivity · Fig. S15 |
tma2 zn ge4 s10 pressed pellet after 10 uL formamide · Pellet
Formamide-treated Zn pellet; low- and high-frequency x-intercept resistances from EIS.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Dry Zn activation barriers for comparison | 0.44/0.37 eV | — | — | Text Range | main p.8, article p.12754 · Results and analysis · Fig. S13 |
| Formamide-treated Zn high-frequency activation barrier | 0.25 (+/-0.01) eV | — | +/-0.01 eV | Figure Axis Exact Reported | SI p.S14 · Temperature Dependent DC Conductivity · Fig. S13b |
| Formamide-treated Zn low-frequency activation barrier | 0.298 (+/-0.008) eV | — | +/-0.008 eV | Figure Axis Exact Reported | SI p.S14 · Temperature Dependent DC Conductivity · Fig. S13a |