Electrochemistry Application — Cu/Fe-MOFs based on mixed ligands: Synthesis, crystal structure and electrocatalytic hydrogen evolution performance

8 measurement groups · 11 results

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

chronoamperometry stability test

Chronoamperometry

Cu-MOF drop-coated glassy carbon electrode · Electrode

CA stability test in 1 M KOH for Cu-MOF electrode.

Geometry: drop-coated glassy carbon electrode
Context: pristine Cu-MOF electrocatalyst on GCE
Measurement source: 6 · 3.3 Electrochemical HER performance · Fig. 8b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-MOF and Fe-MOF chronoamperometry stability duration	desirable stability for at least 20 h	—	at least	Text Rounded Reported	6 · 3.3 Electrochemical HER performance · Fig. 8b
Cu-MOF chronoamperometry stability duration	desirable stability for at least 20 h	—	at least	Text Rounded Reported	6 · 3.3 Electrochemical HER performance · Fig. 8b

cyclic voltammetry for double-layer capacitance

Voltammetry

Cu-MOF drop-coated glassy carbon electrode · Electrode

CV scan rates from 20 to 100 mV s-1 in 1 M KOH; Cdl from current-density difference versus scan rate.

Geometry: drop-coated glassy carbon electrode
Context: pristine Cu-MOF electrocatalyst on GCE
Measurement source: 5 · 3.3 Electrochemical HER performance · Fig. 7a,b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-MOF double-layer capacitance Cdl	0.054 mF cm-2	—	—	Figure Axis Exact Reported	5 · 3.3 Electrochemical HER performance · Fig. 7b

linear sweep voltammetry and Tafel analysis

Voltammetry Tafel and polarisation analysis

Cu-MOF drop-coated glassy carbon electrode · Electrode

Three-electrode system in 1 M KOH; Pt sheet counter electrode; saturated Ag/AgCl reference; MOF/GCE working electrode; LSV scan rate 2 mV s-1; potentials reported vs RHE.

Geometry: drop-coated glassy carbon electrode
Context: pristine Cu-MOF electrocatalyst on GCE
Measurement source: 2 · 2.3 Electrocatalytic measurements · Fig. 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-MOF HER overpotential at 1.0 mA cm-2Marked as a best value within this paper	196.3 mV at 1.0 mA cm-2	—	—	Text Exact Reported	5 · 3.3 Electrochemical HER performance · Fig. 6a
Cu-MOF Tafel slopeMarked as a best value within this paper	60.3 mV dec-1	—	—	Figure Axis Exact Reported	4 · 3.3 Electrochemical HER performance · Fig. 6b

electrochemical impedance spectroscopy

Impedance spectroscopy

Cu-MOF drop-coated glassy carbon electrode · Electrode

EIS across 100000 Hz to 0.05 Hz in 1 M KOH; Nyquist-curve fit used to extract Rct.

Geometry: drop-coated glassy carbon electrode
Context: pristine Cu-MOF electrocatalyst on GCE
Measurement source: 6 · 3.3 Electrochemical HER performance · Fig. 8a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-MOF charge-transfer resistance Rct	308.0 ohm	—	—	Text Exact Reported	6 · 3.3 Electrochemical HER performance · Fig. 8a

chronoamperometry stability test

Chronoamperometry

Fe-MOF drop-coated glassy carbon electrode · Electrode

CA stability test in 1 M KOH for Fe-MOF electrode.

Geometry: drop-coated glassy carbon electrode
Context: pristine Fe-MOF electrocatalyst on GCE
Measurement source: 6 · 3.3 Electrochemical HER performance · Fig. 8b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Fe-MOF chronoamperometry stability duration	desirable stability for at least 20 h	—	at least	Text Rounded Reported	6 · 3.3 Electrochemical HER performance · Fig. 8b

cyclic voltammetry for double-layer capacitance

Voltammetry

Fe-MOF drop-coated glassy carbon electrode · Electrode

CV scan rates from 20 to 100 mV s-1 in 1 M KOH; Cdl from current-density difference versus scan rate.

Geometry: drop-coated glassy carbon electrode
Context: pristine Fe-MOF electrocatalyst on GCE
Measurement source: 5 · 3.3 Electrochemical HER performance · Fig. 7c,d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Fe-MOF double-layer capacitance CdlMarked as a best value within this paper	0.092 mF cm-2	—	—	Figure Axis Exact Reported	5 · 3.3 Electrochemical HER performance · Fig. 7d

electrochemical impedance spectroscopy

Impedance spectroscopy

Fe-MOF drop-coated glassy carbon electrode · Electrode

EIS across 100000 Hz to 0.05 Hz in 1 M KOH; Nyquist-curve fit used to extract Rct.

Geometry: drop-coated glassy carbon electrode
Context: pristine Fe-MOF electrocatalyst on GCE
Measurement source: 6 · 3.3 Electrochemical HER performance · Fig. 8a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Fe-MOF charge-transfer resistance RctMarked as a best value within this paper	34.7 ohm	—	—	Text Exact Reported	6 · 3.3 Electrochemical HER performance · Fig. 8a

linear sweep voltammetry and Tafel analysis

Voltammetry Tafel and polarisation analysis

Fe-MOF drop-coated glassy carbon electrode · Electrode

Three-electrode system in 1 M KOH; Pt sheet counter electrode; saturated Ag/AgCl reference; MOF/GCE working electrode; LSV scan rate 2 mV s-1; potentials reported vs RHE.

Geometry: drop-coated glassy carbon electrode
Context: pristine Fe-MOF electrocatalyst on GCE
Measurement source: 2 · 2.3 Electrocatalytic measurements · Fig. 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Fe-MOF HER overpotential at 1.0 mA cm-2	217.0 mV at 1.0 mA cm-2	—	—	Text Exact Reported	5 · 3.3 Electrochemical HER performance · Fig. 6a
Fe-MOF Tafel slope	78.2 mV dec-1	—	—	Figure Axis Exact Reported	4 · 3.3 Electrochemical HER performance · Fig. 6b