Electrochemistry Application — Self-supporting electrochemical sensors for monitoring of cell-released H2O2 based on metal nanoparticle/MOF nanozymes

Measurement evidence

Electrochemistry Application

Self-supporting electrochemical sensors for monitoring of cell-released H2O2 based on metal nanoparticle/MOF nanozymes · Chen S., Xie Y., Guo X. et al. · Microchemical Journal · 2022 · 107715

4 measurement groups · 4 results

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

Randles-Sevcik electroactive surface area

2D Zn-MOF/GCE · Electrode

Calculated using [Fe(CN)6]3-/4- diffusion coefficient and scan-rate dependence.

Temperature
about 300
Geometry
three-electrode GCE setup
Context
pristine 2D Zn-MOF electrode
Measurement source
SI pp.S5-S6 · S2.1. Electrochemical characterization
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
2D Zn-MOF/GCE electroactive surface area0.0840 cm2Text
Exact Reported
SI p.S6 · S2.1. Electrochemical characterization

Randles-Sevcik electroactive surface area

3D Zn-MOF/GCE · Electrode

Calculated using [Fe(CN)6]3-/4- diffusion coefficient and scan-rate dependence.

Temperature
about 300
Geometry
three-electrode GCE setup
Context
pristine 3D Zn-MOF electrode
Measurement source
SI p.S5 · S2.1. Electrochemical characterization
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
3D Zn-MOF/GCE electroactive surface areaMarked as a best value within this paper0.0929 cm2Text
Exact Reported
SI p.S5 · S2.1. Electrochemical characterization

Cyclic voltammetry for H2O2 reduction

Ag/2D Zn-MOF/GCE · Electrode

CV in 0.1 M PBS with H2O2; scan rate 100 mV/s; concentration and scan-rate series in SI.

Temperature
about 300
Geometry
three-electrode electrochemical cell
Context
Ag/2D Zn-MOF composite sensor
Measurement source
SI p.S9 · S3. Additional Figures and Tables · Fig. S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
CV peak current versus H2O2 concentration R2R2 = 0.997Text
Exact Reported
main p.7 · 3.4. Electrochemical performance · Fig. S5B

Randles-Sevcik electroactive surface area

Polished bare GCE · Electrode

Calculated from redox couple peak current versus square root of scan rate.

Temperature
about 300
Geometry
three-electrode GCE setup
Context
bare electrode baseline
Measurement source
SI pp.S5-S6 · S2.1. Electrochemical characterization
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Bare GCE electroactive surface area0.0783 cm2Text
Exact Reported
SI p.S6 · S2.1. Electrochemical characterization