Facile synthesis of NiCo2O4@Polyaniline core-shell nanocomposite for sensitive determination of glucose

被引：156

作者：

Yu, Zhiyuan ^{[1
]}

Li, Hejun ^{[1
]}

Zhang, Xinmeng ^{[1
]}

Liu, Ningkun ^{[1
]}

Tan, Wenlong ^{[1
]}

Zhang, Xu ^{[1
]}

Zhang, Leilei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Carbon Carbon Composites Res Ctr, Xian 710072, Peoples R China

来源：

BIOSENSORS & BIOELECTRONICS | 2016年 / 75卷

关键词：

NiCo2O4; Polyaniline; Core-shell; Glucose sensor; GRAPHENE OXIDE; SENSOR; NICO2O4; HYBRID; SUPERCAPACITOR; POLYANILINE; NANOFIBERS; TRANSPORT; CATALYST; PANI;

D O I：

10.1016/j.bios.2015.08.024

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

In this work, the core-shell structure of NiCo2O4@Polyaniline (NiCo2O4@PANI) nanocomposite is fabricated via a facile hydrothermal treatment followed by a post-Polyaniline (PANI) coating process. The synthesized materials are characterized by Transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectrometer. The biosensing properties of NiCo2O4@PANI composite and NiCo2O4 nanoparticles toward glucose are studied based on glassy carbon electrode. Electrochemical studies indicate that the obtained core-shell NiCo2O4@PANI composite shows higher electrocatalytic activity toward the oxidation of glucose, compared with NiCo2O4 nanoparticles. The enhanced performance is related to the core-shell structure of NiCo2O4@PANI composite and the outstanding conductivity of the polyaniline shell. At a potential of +0.5 V, the NiCo2O4@PANI nanocomposite modified glass carbon electrode demonstrates a wide linear range up to 4.7350 mM with sensitivity of 4.55 mA mM(-1) cm(-2) and detection limit of 0.3833 mu M. It also shows significant electrochemical stability, good reproducibility and excellent selectivity. The results suggest that the NiCo2O4@PANI nanocomposite is a promising electrode material for electrochemical biosensor. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：161 / 165

页数：5

共 34 条

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