期刊
NEW JOURNAL OF CHEMISTRY
卷 46, 期 31, 页码 15071-15079出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nj02490j
关键词
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资金
- project fund of Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs (2021)
- Jiangsu Graduate Scientific Research Innovation Program [KYCX22_1276]
- National Natural Science Foundation of China [21575064]
Co/CoO/N-C nanoparticles with high sensitivity for glucose oxidation were successfully prepared and demonstrated good sensing performance. This study offers a possible approach for disease diagnosis and food quality control.
Glucose determination with high sensitivity is crucial in human serum and food products. Herein, Co/CoO nanoparticles attached on the outer shell and inner core of porous N-doped carbon polyhedrons (Co/CoO/N-C) were successfully prepared from zeolite imidazole frameworks (ZIF-67) via a pyrolysis-reorganization method, and their sensing performances towards glucose oxidation were demonstrated. For comparison, the ZIF-67, Co3O4 and the sample from ZIF-67@PDA were also tested. Moreover, the experimental results indicated that the Co/CoO/N-C sensor exhibited enhanced electrochemical performance for glucose oxidation, such as high sensitivity (143.9 mu A mM(-1) cm(-2)), a wide linear detection range (0.01-16.65 mM) and a low detection limit (0.8 mu M, S/N = 3), as well as satisfactory stability and reproducibility. Furthermore, the proposed sensor presented feasibility in real samples. This study may offer a possible way to design and develop MOF-derived electrocatalysts for disease diagnosis and food quality control.
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