Issue 9, 2023

In situ growth of the CoO nanoneedle array on a 3D nickel foam toward a high-performance glucose sensor

Abstract

A glucose sensor with high sensitivity and low detection limit is vital for human beings’ health. Herein, a CoO nanoneedle array with an unique electronic structure was successfully constructed by a hydrothermal and subsequent high-temperature calcination process. The optimized CoO-400 nanoneedles exhibit a larger electrochemical active surface area, beneficial electronic structure, favorable lattice distortion, and abundant active sites, which effectively promote electrochemical properties toward glucose sensing. The glucose sensor constructed by CoO-400 nanoneedles shows a high sensitivity of 84.23 mA cm−2 mM−1 and low detection limit of 4.4 × 10−7 M, superior to the results from most previous reports. Moreover, outstanding anti-interference ability, superior long-term stability, good repeatability, and satisfactory reproducibility in glucose detection for CoO-400 nanoneedles are also demonstrated.

Graphical abstract: In situ growth of the CoO nanoneedle array on a 3D nickel foam toward a high-performance glucose sensor

Supplementary files

Article information

Article type
Paper
Submitted
01 Dec 2022
Accepted
21 Jan 2023
First published
23 Jan 2023

Dalton Trans., 2023,52, 2603-2610

In situ growth of the CoO nanoneedle array on a 3D nickel foam toward a high-performance glucose sensor

Y. Zhang, P. Xia, H. Fan, X. Gao, F. Ouyang and W. Chen, Dalton Trans., 2023, 52, 2603 DOI: 10.1039/D2DT03877C

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