Electrical Transport — Wells-Dawson Arsenotungstate Porous Derivatives for Electrochemical Supercapacitor Electrodes and Electrocatalytically Active Materials

Measurement evidence

Electrical Transport

Wells-Dawson Arsenotungstate Porous Derivatives for Electrochemical Supercapacitor Electrodes and Electrocatalytically Active Materials · Zhong R., Cui L., Yu K. et al. · Inorganic Chemistry · 2021 · 9869-9879

4 measurement groups · 5 results

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

EIS before and after 5000 cycles

1-GCE · Electrode

Nyquist plots compared before and after cycling.

Geometry
modified GCE
Context
compound 1 composite electrode
Measurement source
p007 · Capacitive Performance of Compounds 1 and 2 · Figure 10
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
EIS stability after cyclingZw and Rs of compounds 1 and 2 increased slightly after 5000 cycles; Nyquist curves generally unchanged; Rct did not change much.Text
Qualitative
p007 · Capacitive Performance · Figure 10

Electrochemical impedance spectroscopy (EIS)

1-GCE · Electrode

Frequency range 100 kHz to 10 mHz; Nyquist plot in 0.5 M H2SO4 electrolyte.

Geometry
modified GCE
Context
compound 1 composite electrode
Measurement source
p006 · Capacitive Performance of Compounds 1 and 2 · Figure 9b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Ohmic resistance Rs from high-frequency Z' intercept3.49 ohmText
Exact Reported
p006 · Capacitive Performance · Figure 9b

Electrochemical impedance spectroscopy (EIS)

2-GCE · Electrode

Frequency range 100 kHz to 10 mHz; Nyquist plot in 0.5 M H2SO4 electrolyte.

Geometry
modified GCE
Context
compound 2 composite electrode
Measurement source
p006 · Capacitive Performance of Compounds 1 and 2 · Figure 9b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Resistance/diffusion orderMarked as a best value within this paperRs, Rct, and Zw increase in the following order: 2 < 1 < {As2W18O62}Text
Qualitative
p006 · Capacitive Performance · Figure 9b
Ohmic resistance Rs from high-frequency Z' intercept3.87 ohmText
Exact Reported
p006 · Capacitive Performance · Figure 9b

Electrochemical impedance spectroscopy (EIS)

{As2W18O62}-GCE · Electrode

Frequency range 100 kHz to 10 mHz; Nyquist plot in 0.5 M H2SO4 electrolyte.

Geometry
modified GCE
Context
unmodified Dawson control composite electrode
Measurement source
p006 · Capacitive Performance of Compounds 1 and 2 · Figure 9b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Ohmic resistance Rs from high-frequency Z' intercept4.23 ohmText
Exact Reported
p006 · Capacitive Performance · Figure 9b