Electrochemistry Application — Ionic liquid supported nickel-based metal-organic framework for electrochemical sensing of hydrogen peroxide and electrocatalytic oxidation of methanol

3 measurement groups · 4 results

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

Cyclic voltammetry at different scan rates

Voltammetry

Ni-MOF modified glassy carbon electrode (Ni-MOF/GCE) · Electrode

0.5 M NaOH; scan rates from 0.01 to 0.5 V s^-1; conventional three-electrode system with Ni-MOF/GCE working electrode, SCE reference and Pt plate counter electrode.

Geometry: Ni-MOF modified 5 mm GCE in three-electrode cell
Context: Ni-MOF/Nafion/GCE composite electrode
Measurement source: 3 · 3.1. Characterization of the Ni-MOF · Figure 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Scan-rate dependence interpretation	linear relationships between peak currents and scan rates suggest a surface control process	—	—	Text Qualitative	3 · 3.1. Characterization of the Ni-MOF · Figure 2

Chronoamperometry stability test for methanol oxidation

Chronoamperometry

Ni-MOF modified glassy carbon electrode (Ni-MOF/GCE) · Electrode

0.5 M NaOH with 1.0 M methanol under 0.6 V fixed potential.

Geometry: Ni-MOF modified 5 mm GCE
Context: Ni-MOF/Nafion/GCE composite electrode
Measurement source: 6 · 3.5. Electrocatalytic oxidation of methanol · Figure 7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Approximate stable current density after methanol addition	approximately 7.4 mA cm^-2 near 1000 s	—	visual estimate from plotted axis	Visual Estimate Approximate	6 · 3.5. Electrocatalytic oxidation of methanol · Figure 7

Cyclic voltammetry for methanol oxidation reaction

Voltammetry

Ni-MOF modified glassy carbon electrode (Ni-MOF/GCE) · Electrode

0.5 M NaOH containing baseline and 0.5, 1.0, 1.5, 2.0, 3.0 and 4.0 M CH3OH; potential range 0-0.6 V; scan rate 50 mV s^-1.

Geometry: Ni-MOF modified 5 mm GCE
Context: Ni-MOF/Nafion/GCE composite electrode
Measurement source: 5 · 3.5. Electrocatalytic oxidation of methanol · Figure 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Methanol oxidation current density per methanol concentrationMarked as a best value within this paper	about 18 mA cm^-2 M^-1	—	—	Text Approximate	5 · 3.5. Electrocatalytic oxidation of methanol · Figure 6
Reverse-scan oxidation current behaviour	reverse-scan oxidation current also increased with methanol concentration	—	—	Text Qualitative	5 · 3.5. Electrocatalytic oxidation of methanol · Figure 6