文献类型：期刊文献

英文题名：Facile synthesis of layered CuS/RGO/CuS nanocomposite on Cu foam for ultrasensitive nonenzymatic detection of glucose

作者：Zhao, Chongjun[1];Wu, Xian[1];Zhang, Xiaojuan[1];Li, Pengwei[1];Qian, Xiuzhen[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China

年份：2017

卷号：785

起止页码：172

外文期刊名：JOURNAL OF ELECTROANALYTICAL CHEMISTRY

收录：;EI(收录号：20170203231410);WOS:【SCI-EXPANDED(收录号:WOS:000393249000025)】；

基金：We are grateful for the support of the National Natural Science Foundation of China (No. 20504026), the Shanghai Natural Science Foundation (No. 13ZR1411900), the Shanghai Leading Academic Discipline Project (B502), the Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：CuS/RGO/CuS; Nonenzymatic sensor; Glucose; Graphene oxide (GO); Reduced graphene oxide (RGO); Cu foam

摘要：A novel ultrasensitive nonenzymatic sensor was prepared by in-situ growing layered CuS/RGO/CuS (reduced graphene oxide, RGO) nanostructure on the Cu foam surface through a hydrotherm-assisted process. The CuS/RGO/CuS nanocomposite was characterized With X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectrometer (XPS) and field emission scanning electron microscopy (FESEM). This CuS/RGO/CuS/Cu was directly used as electrochemical sensor of glucose, and its performance was evaluated by cyclic voltammetry and amperometry techniques. The nonenzymatic biosensor exhibited ultrahigh linear sensitivities of 22.67 and 10.54 mA mM(-1) cm(-2) in the concentration ranges of 1-655 mu M and 0.655-1.055 mM, respectively. The detection limit was determined to be 0.5 mu M with the signal-to-noise of three. Furthermore the sensor showed good long-term stability and good performance in human blood analysis. The present work gives a new insight into facile preparation of metal sulfides/RGO/metal sulfides nanocomposite on its metal substrate and its potential application in nonenzymatic glucose sensor. (C) 2016 Elsevier B.V. All rights reserved.