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Issue 10, 2017
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Cobalt phosphide nanowire array as an effective electrocatalyst for non-enzymatic glucose sensing

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Abstract

It is of significant importance for the design of electrodes to construct enhanced electrochemical sensing platforms, and a nanoarray offers an ideal architecture for the detection of molecules. In this communication, we demonstrate that cobalt phosphide nanowire array grown in situ on titanium mesh (CoP NA/TM) exhibits high catalytic activity towards electrooxidation of glucose. As a non-enzymatic electrochemical glucose sensor, this CoP NA/TM catalytic electrode possesses superior analytical performance with a short response time of less than 5 s, a wide linear range of 0.0005–1.5 mM, a low detection limit of 0.1 μM (S/N = 3), a high sensitivity of 5168.6 μA mM−1 cm−2, and a remarkable selectivity and long-term stability for glucose detection. We further demonstrate the successful use of such glucose biosensors in human blood serum and fruit juice.

Graphical abstract: Cobalt phosphide nanowire array as an effective electrocatalyst for non-enzymatic glucose sensing

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Supplementary files

Article information


Submitted
04 Nov 2016
Accepted
12 Feb 2017
First published
13 Feb 2017

J. Mater. Chem. B, 2017,5, 1901-1904
Article type
Communication

Cobalt phosphide nanowire array as an effective electrocatalyst for non-enzymatic glucose sensing

Y. Liu, X. Cao, R. Kong, G. Du, A. M. Asiri, Q. Lu and X. Sun, J. Mater. Chem. B, 2017, 5, 1901
DOI: 10.1039/C6TB02882A

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