Electrochemistry Application — Nanoporous gold induced vertically standing 2D NiCo bimetal-organic framework nanosheets for non-enzymatic glucose biosensing

Measurement evidence

Electrochemistry Application

Nanoporous gold induced vertically standing 2D NiCo bimetal-organic framework nanosheets for non-enzymatic glucose biosensing · Li W., Lv S., Wang Y. et al. · Sensors and Actuators, B: Chemical · 2019 · 652-658

6 measurement groups · 14 results

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

cyclic voltammetry glucose oxidation

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

0.1 M NaOH without and with 4 mM glucose; scan rate 50 mV s^-1

Atmosphere
N2-saturated electrolyte per electrochemical measurements
Geometry
three-electrode; working electrode 2D NiCo-MOFNs, SCE reference, Pt plate counter
Context
target sample
Measurement source
654 · 3.2 Synergistic effect · Fig. 2b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co2+/Co3+ oxidation potentialabout 0.25 VText
Approximate
654 · 3.2 Synergistic effect · Equations 1-5
glucose catalytic peak potentialMarked as a best value within this paper0.50 V vs. SCEText
Rounded Reported
654 · 3.2 Synergistic effect · Fig. 2b

CV double-layer capacitance / ECSA proxy

NiCo-MOFNs on nanoporous gold, 2 h growth · Electrode

0.1 M NaOH; scan-rate-dependent CV; potential window -0.1 to 0.02 V vs. SCE; scan rates 10-200 mV s^-1 in SI

Atmosphere
N2 for main electrochemistry; not restated in SI caption
Geometry
three-electrode
Context
growth-time control
Measurement source
654 · 3.1 Preparation · Fig. 2a, Fig. S6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
double-layer capacitance label0.1860 mF cm^-2Figure Axis
Rounded Reported
654 · 3.1 Preparation · Fig. 2a

CV double-layer capacitance / ECSA proxy

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

0.1 M NaOH; scan-rate-dependent CV; potential window -0.1 to 0.02 V vs. SCE; scan rates 10-200 mV s^-1 in SI

Atmosphere
N2 for main electrochemistry; not restated in SI caption
Geometry
three-electrode
Context
target sample
Measurement source
654 · 3.1 Preparation · Fig. 2a, Fig. S6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
double-layer capacitance labelMarked as a best value within this paper0.6638 mF cm^-2Figure Axis
Rounded Reported
654 · 3.1 Preparation · Fig. 2a
ECSA ratio versus 2 h sampleMarked as a best value within this paper3.6 times of the 2 h NiCo-MOFNsText
Rounded Reported
654 · 3.1 Preparation · Fig. 2a
ECSA ratio versus 6 h sampleMarked as a best value within this paper2.0 times of the 6 h NiCo-MOFNsText
Rounded Reported
654 · 3.1 Preparation · Fig. 2a

CV double-layer capacitance / ECSA proxy

NiCo-MOFNs on nanoporous gold, 6 h growth · Electrode

0.1 M NaOH; scan-rate-dependent CV; potential window -0.1 to 0.02 V vs. SCE; scan rates 10-200 mV s^-1 in SI

Atmosphere
N2 for main electrochemistry; not restated in SI caption
Geometry
three-electrode
Context
growth-time control
Measurement source
654 · 3.1 Preparation · Fig. 2a, Fig. S6
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
double-layer capacitance label0.3311 mF cm^-2Figure Axis
Rounded Reported
654 · 3.1 Preparation · Fig. 2a

CV glucose oxidation current versus Co content

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

Glucose oxidation current calculated by subtracting 0.1 M NaOH oxidation current from glucose solution oxidation current

Atmosphere
N2-saturated electrolyte per electrochemical measurements
Geometry
three-electrode
Context
ratio controls
Measurement source
655 · 3.2 Synergistic effect · Fig. 2d, Fig. S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
best Ni/Co ratioMarked as a best value within this paperNi/Co ratio of 1:1 show the best electrochemical performanceText
Qualitative
655 · 3.2 Synergistic effect · Fig. 2d, Fig. S7
glucose oxidation current at 0% Coapproximately 0.13 mAVisual Estimate
Uncertain
654 · Fig. 2 caption · Fig. 2d
glucose oxidation current at about 25% Coapproximately 0.44 mAVisual Estimate
Uncertain
654 · Fig. 2 caption · Fig. 2d
glucose oxidation current at about 50% Co (Ni:Co 1:1)Marked as a best value within this paperapproximately 0.56 mAVisual Estimate
Uncertain
654 · Fig. 2 caption · Fig. 2d
glucose oxidation current at about 75% Coapproximately 0.08 mAVisual Estimate
Uncertain
654 · Fig. 2 caption · Fig. 2d

scan-rate-dependent CV kinetics

vertical NiCo(1:1)-MOFNs array on nanoporous gold, 4 h growth · Electrode

0.1 M NaOH; scan rates 20-100 mV s^-1

Atmosphere
N2-saturated electrolyte per electrochemical measurements
Geometry
three-electrode
Context
target sample
Measurement source
655 · 3.2 Synergistic effect · Fig. 2c
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
peak-current scan-rate dependenceoxidation and reduction peak currents increase linearly with scan ratesText
Qualitative
655 · 3.2 Synergistic effect · Fig. 2c
kinetic regimesurface-controlled electrochemical processText
Qualitative
655 · 3.2 Synergistic effect · Fig. 2c