期刊
RSC ADVANCES
卷 4, 期 44, 页码 23319-23326出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra47422d
关键词
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资金
- National Natural Science Foundation of China [51375474, 51205385]
- Funds for Distinguished Young Scientists of Gansu Province
CuO microstructures with urchin-like, flower-like and sheet-like morphologies were directly grown on a Ni foam via a simple and low-cost hydrothermal method. The aim was to construct a three-dimensional porous hybrid electrode for an amperometric non-enzymatic glucose sensor. As a result, the asprepared hybrid electrode with a flower-like morphology exhibited a higher electrocatalytic activity towards the oxidation of glucose compared to electrodes with other morphologies and a pristine Ni foam electrode. The flower-like CuO/Ni foam electrode displayed a high sensitivity of 1084 mu A mM(-1) cm(-2) to glucose ranging from 0.5 mu M to 3.5 mM, which is higher than most of the reported CuO based electrodes, and also a low detection limit of 0.16 mM (signal/noise = 3). Notably, poisoning by chloride ions and interference from ascorbic acid, uric acid, dopamine, and sucrose were negligible. These results indicate that the flower-like CuO/Ni foam hybrid electrode is a promising candidate for amperometric non-enzymatic glucose detection.
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