Electrochemistry Application — Truxone-Based Conductive Metal-Organic Frameworks for the Oxygen Reductive Reaction

Measurement evidence

Electrochemistry Application

Truxone-Based Conductive Metal-Organic Frameworks for the Oxygen Reductive Reaction · Zhao Q., Jiang J., Zhao W. et al. · Journal of Physical Chemistry C · 2021 · 12690-12698

3 measurement groups · 6 results

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

Cyclic voltammetry in 0.1 M KOH saturated with O2 or N2.

truxone-Cu MOF-modified GC electrode · Electrode

Scan rate 50 mV s-1; potentials referenced to RHE; conventional three-electrode system.

Temperature
room temperature
Atmosphere
O2 or N2 saturated electrolyte
Geometry
MOF-modified GC electrode
Context
MOF/Nafion/GC electrode composite
Measurement source
p006 / article p.12695 · Results and Discussion · Figure 5a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
truxene-Cu MOF basic-electrolyte stability controlcould not exist stably on the electrode in the basic environmentQualitative
Qualitative
p006 / article p.12695 · Results and Discussion

Koutecky-Levich analysis, Tafel plot and chronoamperometric stability.

truxone-Cu MOF-modified GC electrode · Electrode

K-L from 0.4, 0.45 and 0.5 V polarization curves; Tafel at 1500 rpm; stability at 0.65 V for 10000 s in O2-saturated 0.1 M KOH.

Temperature
room temperature
Atmosphere
O2 saturated electrolyte
Geometry
MOF-modified GC/RDE; graphite counter electrode for steady-state potentiostatic measurement
Context
MOF/Nafion/GC electrode composite
Measurement source
p006-p007 / article pp.12695-12696 · Results and Discussion · Figure 5d; Figures S33-S34
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Koutecky-Levich ORR electron-transfer numberabout 3.6aboutText
Approximate
p006 / article p.12695 · Results and Discussion · Figure 5d
chronoamperometric current retention after 10000 s80.5% of initial current density remained after 10000 s at 0.65 VText
Exact Reported
p006-p007 / article pp.12695-12696 · Results and Discussion · Figure S34
ORR Tafel slope114 mV dec-1Text
Exact Reported
p006 / article p.12695 · Results and Discussion · Figure S33

Rotating disk electrode linear sweep polarization in O2-saturated 0.1 M KOH.

truxone-Cu MOF-modified GC electrode · Electrode

pH = 13; RDE at 1500 rpm for onset comparison; scan rate 5 mV s-1; additional speeds 500-2500 rpm.

Temperature
room temperature
Atmosphere
O2 saturated 0.1 M KOH
Geometry
5 mm GC RDE modified with MOF/Nafion ink
Context
MOF/Nafion/GC electrode composite
Measurement source
p006 / article p.12695 · Results and Discussion · Figure 5b,c
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ORR reaction current density-1.5 mA cm-2Text
Exact Reported
p006 / article p.12695 · Results and Discussion · Figure 5b
ORR onset potential at j = -50 uA cm-20.79 V vs RHEText
Exact Reported
p006 / article p.12695 · Results and Discussion · Figure 5b