CuO nanoparticles/nitrogen-doped carbon nanofibers modified glassy carbon electrodes for non-enzymatic glucose sensors with improved sensitivity
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- 作者：Na Lu ; Changlu Shao ; clshao@nenu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Xinghua Li ; lixh781@nenu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Fujun Miao ; Kexin Wang ; Yichun Liu
- 关键词：Nitrogen-doped ; Carbon nanofibers ; Polyaniline ; CuO nanoparticles ; Non-enzymatic glucose sensor
- 刊名：Ceramics International
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：42
- 期：9
- 页码：11285-11293
- 全文大小：3394 K
文摘
Nitrogen-doped carbon nanofibers (N-CNFs) were facilely prepared by carbonizing electrospun polyacrylonitrile@polyaniline core–shell nanofibers. The obtained N-CNFs possessed the favorable properties of high nitrogen content, large surface area, hierarchical porosity and good conductivity, which as ideal supports have been decorated by CuO nanoparticles through a facile solvothermal approach. Benefiting from the synergistic effect of the properties of N-CNFs and CuO nanoparticles, the obtained CuO/N–CNFs modified on glassed carbon electrodes (CuO/N–CNFs/GCE) have demonstrated desirable activity for direct electrocatalytic oxidation of glucose with much higher sensitivity than that of pure CuO nanoparticles and CuO/CNFs composites. This could be ascribed to the fast electron transport/collect within the 3D conductive networks, which was very beneficial to improve the sensitivity to glucose detection for CuO/CNFs modified electrodes. In addition, the CuO/N-CNFs/GCE also presented a low detection limit to glucose, good selectivity to the general interferences in blood as well as high stability with long-term exposed in air. Therefore, the prepared CuO/N-CNFs modified electrodes by the facile synthesis method presents the potential possibility for practical application in non-enzymatic glucose sensor.