Electrical Transport — Reaction-Type-Dependent Behavior of Redox-Hopping in MOFs─Does Charge Transport Have a Preferred Direction?

3 measurement groups · 46 results

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

Chronoamperometry with Scholz-model analysis, oxidation

Chronoamperometry

Ru-NU-1000 film on FTO · Electrode

Open-circuit potential held for 1 h, then excitation pulse to 1.2 V vs Ag/AgNO3; Stage A and Stage B Scholz model fitted to current-time data.

Atmosphere: acetonitrile/0.1 M TBAPF6 electrolyte
Geometry: Ru-NU-1000/FTO working electrode
Context: Oxidative/hole redox-hopping transport in target MOF film.
Measurement source: p004 / article page 11922 · Results and discussion · Figure 4; Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Oxidation CA excitation potential	1.2 V vs Ag/AgNO3	—	—	Text Rounded Reported	p004 / article page 11922 · Results and discussion
Stage A electron hopping coefficient De oxidation averageMarked as a best value within this paper	(3 +/- 2) x 10^-7 cm2/s	—	(3 +/- 2)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De oxidation replicate 1	1.6e-07 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De oxidation replicate 2	4.9e-06 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De oxidation replicate 3	6.4e-07 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De oxidation replicate 4	9.1e-08 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di oxidation averageMarked as a best value within this paper	(1 +/- 1) x 10^-16 cm2/s	—	(1 +/- 1)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di oxidation replicate 1	1.4e-16 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di oxidation replicate 2	3e-16 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di oxidation replicate 3	2.2e-15 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di oxidation replicate 4	1.9e-15 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De oxidation averageMarked as a best value within this paper	(2 +/- 1) x 10^-9 cm2/s	—	(2 +/- 1)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De oxidation replicate 1	9.6e-10 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De oxidation replicate 2	2.8e-09 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De oxidation replicate 3	3.4e-09 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De oxidation replicate 4	1.9e-09 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di oxidation averageMarked as a best value within this paper	(3 +/- 3) x 10^-12 cm2/s	—	(3 +/- 3)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di oxidation replicate 1	7.2e-12 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di oxidation replicate 2	1.7e-12 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di oxidation replicate 3	3.2e-13 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di oxidation replicate 4	1e-12 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Oxidation Scholz reference time t_ref	t_ref = 1.76 s	—	—	Figure Axis Rounded Reported	p003 / article page 11921 · Results and discussion · Figure 4d

Chronoamperometry with Scholz-model analysis, reduction

Chronoamperometry

Ru-NU-1000 film on FTO · Electrode

Open-circuit potential held for 1 h, then excitation pulse to -1.65 V vs Ag/AgNO3; Stage A and Stage B Scholz model fitted to current-time data.

Atmosphere: acetonitrile/0.1 M TBAPF6 electrolyte
Geometry: Ru-NU-1000/FTO working electrode
Context: Reductive/electron redox-hopping transport in target MOF film.
Measurement source: p004 / article page 11922 · Results and discussion · Figure 4; Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Reduction CA excitation potential	-1.65 V vs Ag/AgNO3	—	—	Text Rounded Reported	p004 / article page 11922 · Results and discussion
Stage A electron hopping coefficient De reduction averageMarked as a best value within this paper	(3 +/- 2) x 10^-5 cm2/s	—	(3 +/- 2)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De reduction replicate 1	1.1e-05 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De reduction replicate 2	1.1e-05 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De reduction replicate 3	5.3e-05 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A electron hopping coefficient De reduction replicate 4	2.8e-05 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di reduction averageMarked as a best value within this paper	(2 +/- 1) x 10^-16 cm2/s	—	(2 +/- 1)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di reduction replicate 1	1.9e-16 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di reduction replicate 2	2.8e-16 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di reduction replicate 3	1.3e-16 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage A ion diffusion coefficient Di reduction replicate 4	1.6e-17 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De reduction averageMarked as a best value within this paper	(8 +/- 2) x 10^-8 cm2/s	—	(8 +/- 2)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De reduction replicate 1	1e-07 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De reduction replicate 2	8e-07 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De reduction replicate 3	5.7e-08 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B electron hopping coefficient De reduction replicate 4	1e-07 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di reduction averageMarked as a best value within this paper	(6 +/- 4) x 10^-11 cm2/s	—	(6 +/- 4)	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di reduction replicate 1	5.2e-11 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di reduction replicate 2	3.3e-11 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di reduction replicate 3	3.6e-11 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Stage B ion diffusion coefficient Di reduction replicate 4	1.2e-10 cm2/s	—	—	Table Rounded Reported	p004 / article page 11922 · Results and discussion · Table 1
Reduction Scholz reference time t_ref	t_ref = 0.144 s	—	—	Figure Axis Rounded Reported	p003 / article page 11921 · Results and discussion · Figure 4c

Chronoamperometry with Cottrell-equation Dapp extraction

Chronoamperometry

Ru-NU-1000 film on FTO · Electrode

Dapp values derived from CA by applying the Cottrell equation for oxidation and reduction.

Atmosphere: acetonitrile/TBAPF6 electrolyte
Geometry: Ru-NU-1000/FTO working electrode
Context: Apparent redox-hopping diffusion comparison.
Measurement source: p005 / article page 11923 · Results and discussion

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cottrell apparent diffusion coefficient Dapp, oxidationMarked as a best value within this paper	(3.4 +/- 1.8) x 10^-12 cm2/s	—	+/- 1.8 x 10^-12 cm2/s	Text Rounded Reported	p005 / article page 11923 · Results and discussion
Cottrell apparent diffusion coefficient Dapp, reductionMarked as a best value within this paper	(3.4 +/- 0.5) x 10^-11 cm2/s	—	+/- 0.5 x 10^-11 cm2/s	Text Rounded Reported	p005 / article page 11923 · Results and discussion