MOF derived core-shell CuO/C with temperature-controlled oxygen-vacancy for real time analysis of glucose.

ABSTRACT: Introducing oxygen-vacancy into the surface of the non-enzymatic sensor is supposed to be an effective way to improve inherently low catalytic activity and specificity of non-enzymatic sensors. In this work, CuO/C was synthesized at different temperatures using metal-organic frameworks as sacrificial templates to receive additional content of oxygen-vacancy. The product with the highest oxygen vacancy was found at 400 °C (named CuO/C-400 °C), which increased catalytically active sites and enhanced the charge-transfer efficiency. The sensing performance was afterward explored by amperometry under an optimal applied potential at 0.5 V (vs. SCE), presenting a broad detection range from 5.0 µM to 25.325 mM (R² = 0.9998) with a sensitivity of 244.71 µA mM^- 1 cm^- 2

SUBMITTER: Zhao C 

PROVIDER: S-EPMC9714170 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature