Rapid colorimetric sensing of ascorbic acid based on the excellent peroxidase-like activity of Pt deposited on ZnCo 2 O 4 spheres

References

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594Rapid colorimetric sensing of ascorbic acid based on the excellent peroxidase-like activity of Pt deposited on ZnCo 2 O 4 sphereshttps://doi.org/10.1039/d0nj02795bCompositePt deposited on ZnCo2O4 spheres (Pt/ZnCo2O4)

Materials

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BET
b nanozyme
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594Pt/ZnCo2O4TEM, SEMFig. 1B and C show the SEM and TEM images of Pt/ZnCo2O4 , respectively. As displayed in Fig. S2 (ESI†), ZnCo2O4 microspheres with 1.5–2 mm diameter were composed of nanoparticles.

Kinetics

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594Pt/ZnCo2O4PODH2O20.73mM8.35-8M/s594594
594Pt/ZnCo2O4PODTMB0.1357mM80.68-8M/s594594

Applications

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594Pt/ZnCo2O4Detection of ascorbic acidAscorbic acid (AA)1-15μM0.456μM