Electrochemistry Application — Glucose sensing performance of bimetallic MOFs CoFe-ZIF/CC for enzyme-free saliva sensor applications

Measurement evidence

Electrochemistry Application

Glucose sensing performance of bimetallic MOFs CoFe-ZIF/CC for enzyme-free saliva sensor applications · Liu J., Shi L., Shi Y. et al. · Journal of Alloys and Compounds · 2024 · 174733

2 measurement groups · 10 results

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

Cyclic voltammetry (CV)

Co0.95Fe0.05-ZIF/CC/GCE electrode · Electrode

0.10 M NaOH electrolyte, 0.00-0.60 V, room temperature, three-electrode cell with GCE working electrode, Pt counter, Ag/AgCl reference; scan rate 20 mV s-1 for comparison in absence/presence of 500 uM glucose.

Temperature
room temperature
Geometry
GCE working electrode with 3 mm Co0.95Fe0.05-ZIF/CC disk; Pt wire counter; Ag/AgCl reference.
Context
Composite compared against Co0.95Fe0.05-ZIF/GCE and bare CC.
Measurement source
2,5-6 · 2.4; 3.2 Glucose-Sensing Performance · Fig. 4a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Bare CC glucose oxidation activityNo clear change for bare CC in absence/presence of 500 uM glucose; bare CC inactive.Text
Qualitative
5 · 3.2 Glucose-Sensing Performance · Fig. S8
Composite/pristine response current ratioCo0.95Fe0.05-ZIF/CC response current is about two times that of Co0.95Fe0.05-ZIF.aboutText
Approximate
5 · 3.2 Glucose-Sensing Performance · Fig. 4a
CV glucose challenge concentration500 uM glucoseText
Exact Reported
5 · 3.2 Glucose-Sensing Performance · Fig. S8
Composite oxidation peak range without glucosewide oxidation peak at 0.20-0.30 VrangeText
Range
5 · 3.2 Glucose-Sensing Performance · Fig. 4a
Approximate reduction peakapproximately 0.50 VapproximatelyText
Approximate
5 · 3.2 Glucose-Sensing Performance · Fig. 4a
Approximate low-potential reduction peakaround 0.10 VaroundText
Approximate
5 · 3.2 Glucose-Sensing Performance · Fig. 4a
CV comparison scan rate20 mV s-1Caption
Exact Reported
6 · Figure caption · Fig. 4a
Electrochemical test voltage window0.00-0.60 VrangeText
Range
5 · 3.2 Glucose-Sensing Performance · Fig. 4

CV scan-rate dependence

Co0.95Fe0.05-ZIF/CC/GCE electrode · Electrode

Co0.95Fe0.05-ZIF/CC/GCE CV curves at scan rates 10, 20, 30, 40, 60 and 80 mV s-1.

Temperature
room temperature
Geometry
Three-electrode GCE cell.
Context
Composite electrode redox kinetics.
Measurement source
5-6 · 3.2 Glucose-Sensing Performance · Fig. 4c-d
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Redox kinetics assignmentPeak currents of anode and cathode linear to square root of scan rate; surface-diffusion-control process.Text
Qualitative
5 · 3.2 Glucose-Sensing Performance · Fig. 4d
CV scan-rate series10, 20, 30, 40, 60 and 80 mV s-1Figure Axis
Rounded Reported
6 · Figure · Fig. 4c