Electrical Transport — Beyond diffusion: ion and electron migration contribute to charge transport in redox-conducting metal-organic frameworks

3 measurement groups · 15 results

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

CV analysis of non-catalytic [Co(bpy)3]3+ wave through inert Zn(NDI) film

Voltammetry

Zn(NDI)@FTO thin film · Thin Film

36 mM [Co(bpy)3]3+ in 0.5 M LiClO4/DMF; analysis of first wave near -0.12 V and quasi-plateau at low scan rates

Geometry: Zn(NDI)@FTO thin film as electroinactive diffusion layer for acceptor at first wave
Context: pristine framework thin film with soluble acceptor
Measurement source: p017 / SI page S17 · 4.1 Experimental determination of mobile acceptor diffusivity · Figure S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
intra-MOF acceptor diffusion coefficientMarked as a best value within this paper	DA = 1.7 x 10^-9 cm2 s^-1	—	—	Text Rounded Reported	p017 / SI page S17 · 4.1 Experimental determination of mobile acceptor diffusivity · Figure S3
*diffusion competition parameter DAC0A/(DeC0P)*	DA C0A / De C0P = 0.1	—	—	Text Rounded Reported	p017 / SI page S17 · 4.1 Experimental determination of mobile acceptor diffusivity

steady-state catalytic cyclic voltammetry with [Co(bpy)3]3+ electron acceptor

Voltammetry

Zn(NDI)@FTO thin film · Thin Film

Zn(NDI)@FTO in DMF with 0.5 M LiClO4 and [Co(bpy)3]3+ concentrations 0-36 mM; key fit at 36 mM and 50 mV s-1

Geometry: source-drain-like electrode|RCMOF|electrolyte architecture generated chemically by mobile acceptor
Context: pristine framework thin film with soluble acceptor in electrolyte
Measurement source: p004 / journal page 5217 · Results and discussion · Fig. 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
bulk acceptor concentration used for key catalytic CV	C0A = 36 mM	0.036 M	—	Caption Exact Reported	p004 / journal page 5217 · Results and discussion · Fig. 2a
acceptor concentration where plateau current becomes nearly independent of concentration	greater than 24 mM	0.024 M	threshold	Text Rounded Reported	p004 / journal page 5217 · Results and discussion · Fig. 2b
best-fit NDI formal potential	E0 = -0.5 V vs SCE	—	—	Caption Rounded Reported	p007 / journal page 5220 · Results and discussion · Fig. 4
intrinsic electron-hopping diffusion coefficient from steady-state catalytic CVMarked as a best value within this paper	De = 5.5 x 10^-10 cm2 s^-1	—	—	Caption Rounded Reported	p007 / journal page 5220 · Results and discussion · Fig. 4
diffusion current density	iD/S = F C0P De / df = 0.55 mA cm^-2	—	—	SI Table Rounded Reported	p022 / SI page S22 · 5.1 Dimensional parameters · Table S1
direct [Co(bpy)3]3+ reduction wave potential	approximately -0.12 V vs SCE	—	approximately	Text Approximate	p004 / journal page 5217 · Results and discussion · Fig. 2
mediated [Co(bpy)3]3+ reduction wave potential	-0.56 V vs SCE	—	—	Text Rounded Reported	p004 / journal page 5217 · Results and discussion · Fig. 2
scan-rate-independent plateau threshold	scan rates >= 50 mV s^-1	—	threshold	Text Rounded Reported	p004 / journal page 5217 · Results and discussion · Fig. 2c
supporting electrolyte concentration	0.5 M LiClO4 in DMF	—	—	Caption Exact Reported	p004 / journal page 5217 · Results and discussion · Fig. 2 caption

chronoamperometry transient potential step with Cottrell analysis

Chronoamperometry

Zn(NDI)@FTO thin film · Thin Film

Potential stepped from -0.25 V to -0.85 V vs SCE in DMF with 0.5 M LiClO4; Cottrell fit of short-time response

Geometry: Zn(NDI)@FTO thin-film working electrode, one-compartment three-electrode cell
Context: pristine framework thin-film electrode
Measurement source: p026 / SI page S26 · Figures · Figures S5-S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
transient apparent to steady-state intrinsic diffusion coefficient ratio	Dapp(trans)_e / De = 5	—	—	Text Rounded Reported	p007 / journal page 5220 · Results and discussion
apparent electron-hopping diffusion coefficient from transient chronoamperometry	Dapp(trans)_e = 2.5 x 10^-9 cm2 s^-1	—	—	Caption Rounded Reported	p026 / SI page S26 · Figures · Figure S6
electroactive surface concentration of NDI from charge plot	Gamma_e = 9.0 x 10^-8 mol cm^-2	—	—	Caption Rounded Reported	p026 / SI page S26 · Figures · Figure S5
volumetric linker concentration from charge plot	approximately 0.9 M	—	approximately	Caption Approximate	p026 / SI page S26 · Figures · Figure S5