Electrochemistry Application — Electrochemical Transformation of Metal Organic Framework into Ultrathin Metal Hydroxide-(oxy)hydroxide Nanosheets for Alkaline Water Oxidation

13 measurement groups · 20 results

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

double-layer capacitance and ECSA

CF-2 · Electrode

CVs in non-Faradaic 0.90-1.00 V vs RHE, scan rates 5-50 mV s-1; ECSA = Cdl/0.04 mF cm-2

Geometry: CF-2@CC working electrode
Context: derived nanosheet electrode compared with CoHC@CC
Measurement source: S-18 · 6. Figures · Figure S21

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
double-layer capacitanceMarked as a best value within this paper	0.81 mF	—	—	Caption Exact Reported	S-18 · 6. Figures · Figure S21
electrochemical surface areaMarked as a best value within this paper	20.25 cm2	—	—	Caption Exact Reported	S-18 · 6. Figures · Figure S21
CoHC@CC double-layer capacitance	0.26 mF	—	—	Caption Exact Reported	S-18 · 6. Figures · Figure S21
CoHC@CC electrochemical surface area	6.5 cm2	—	—	Caption Exact Reported	S-18 · 6. Figures · Figure S21

chronoamperometric OER stability

Chronoamperometry

CF-2 · Electrode

1.0 M aqueous KOH; 24 h at 260 mV overpotential and 12 h at 1.55 V vs RHE

Geometry: CF-2@CC working electrode
Context: best derived nanosheet electrode
Measurement source: 6697 · 3.3 · Figure 3d; Figure S19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
continuous OER durationMarked as a best value within this paper	24 h at overpotential of 260 mV	—	—	Text Exact Reported	6697 · 3.3 · Figure 3d
current-density loss at high potentialMarked as a best value within this paper	only 3% loss of the initial current density	—	—	Text Exact Reported	6697 · 3.3 · Figure S19

OER cyclic voltammetry

Voltammetry

CF-1 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1, iR-drop/background corrected

Geometry: three-electrode cell; catalyst@CC working electrode, Pt wire counter, Ag/AgCl reference
Context: derived nanosheet electrode
Measurement source: S-4 · 4 · Figure 3a; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	270 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

CF-2 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1, iR-drop/background corrected

Geometry: three-electrode cell; catalyst@CC working electrode, Pt wire counter, Ag/AgCl reference
Context: best derived nanosheet electrode
Measurement source: 6696-6697 · 3.3 · Figure 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2Marked as a best value within this paper	250 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

CF-3 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1, iR-drop/background corrected

Geometry: three-electrode cell; catalyst@CC working electrode, Pt wire counter, Ag/AgCl reference
Context: derived nanosheet electrode with high-potential peeling
Measurement source: 6696 · 3.3 · Figure 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	300 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

CF-4 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1, iR-drop/background corrected

Geometry: three-electrode cell; catalyst@CC working electrode, Pt wire counter, Ag/AgCl reference
Context: derived nanosheet electrode with long-time peeling
Measurement source: 6696 · 3.3 · Figure 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	300 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

CF-5 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1

Geometry: CoFe-LDH@CC working electrode
Context: hydrothermal LDH control electrode
Measurement source: S-17 · 6. Figures · Figure S18; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	360 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry before CA treatment

Voltammetry

CoFe-PBA@CC · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1

Geometry: PBA@CC working electrode
Context: PBA/MOF precursor control
Measurement source: 6697 · 3.3 · Figure 3b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	327 mV	—	—	Text Exact Reported	6697 · 3.3 · Figure 3b

OER cyclic voltammetry

Voltammetry

CoHC@CC · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1

Geometry: CoHC@CC working electrode
Context: template/control electrode
Measurement source: 6697 · 3.3 · Figure 3a; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	370 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

NF-2 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1; compared with CF-2 and NiHC@CC

Geometry: NF-2@CC working electrode
Context: derived Ni analogue nanosheet electrode
Measurement source: 6698 · 3.3 · Figure S34; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	350 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

NiHC@CC · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1

Geometry: NiHC@CC working electrode
Context: Ni template/control electrode
Measurement source: 6698 · 3.3 · Figure S34; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER overpotential at 10 mA cm-2	450 mV	—	—	SI Table Exact Reported	S-16 · Table S2 · Table S2

OER cyclic voltammetry

Voltammetry

commercial RuO2 · Electrode

1.0 M aqueous KOH, scan rate 2 mV s-1; commercial benchmark

Geometry: commercial RuO2 benchmark electrode
Context: commercial control
Measurement source: S-17 · 6. Figures · Figure S18

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CF-2 compared with commercial RuO2	CF-2 showed superior OER performance than commercially available RuO2	—	—	Text Qualitative	6697 · 3.3 · Figure S18

Tafel analysis

Tafel and polarisation analysis

CF-2 · Electrode

Tafel plots comparing CF-1, CF-2, CF-3, and CF-4

Geometry: nanosheet@CC electrodes
Context: derived nanosheet electrode series
Measurement source: 6697 · 3.3 · Figure 3c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Tafel slope	63 mV dec-1	—	—	Figure Axis Approximate	6697 · 3.3 · Figure 3c
Tafel slopeMarked as a best value within this paper	57 mV dec-1	—	—	Text Exact Reported	6697 · 3.3 · Figure 3c
Tafel slope	112 mV dec-1	—	—	Figure Axis Approximate	6697 · 3.3 · Figure 3c
Tafel slope	123 mV dec-1	—	—	Figure Axis Approximate	6697 · 3.3 · Figure 3c