Three-Dimensional Ni2P Nanoarray: An Efficient Catalyst Electrode for Sensitive and Selective Nonenzymatic Glucose Sensing with High Specificity

详细信息    查看全文

• 作者：Tao Chen ; Danni Liu ; Wenbo Lu ; Kunyang Wang ; Gu Du ; Abdullah M. Asiri ; Xuping Sun
• 刊名：Analytical Chemistry
• 出版年：2016
• 出版时间：August 16, 2016
• 年：2016
• 卷：88
• 期：16
• 页码：7885-7889
• 全文大小：384K
• 年卷期：0
• ISSN：1520-6882

文摘

It is highly attractive to construct a natural enzyme-free electrode for sensitive and selective detection of glucose. In this Letter, we report that a Ni₂P nanoarray on conductive carbon cloth (Ni₂P NA/CC) behaves as an efficient three-dimensional catalyst electrode for glucose electrooxidation under alkaline conditions. Electrochemical measurements demonstrate that the Ni₂P NA/CC, when used as a nonenzymatic glucose sensor, offers superior analytical performances with a short response time of 5 s, a wide detection range of 1 μM to 3 mM, a low detection limit of 0.18 μM (S/N = 3), a response sensitivity of 7792 μA mM^–1 cm^–2, and satisfactory selectivity, specificity, and reproducibility. Moreover, it can also be used for glucose detection in human blood serum, promising its application toward determination of glucose in real samples.