文献类型：期刊文献

英文题名：A highly sensitive non-enzymatic glucose sensor based on nickel and multi-walled carbon nanotubes nanohybrid films fabricated by one-step co-electrodeposition in ionic liquids

作者：Sun, Aili[1,2];Zheng, Jianbin[1];Sheng, Qinglin[1]

第一作者：Sun, Aili

通讯作者：Zheng, JB[1]

机构：[1]NW Univ Xian, Inst Analyt Sci, Shaanxi Prov Key Lab Electoanalyt Chem, Xian 710069, Shaanxi, Peoples R China;[2]Xinxiang Univ, Dept Chem & Chem Engn, Xinxiang 453000, Peoples R China

第一机构：NW Univ Xian, Inst Analyt Sci, Shaanxi Prov Key Lab Electoanalyt Chem, Xian 710069, Shaanxi, Peoples R China

通讯机构：[1]corresponding author), NW Univ Xian, Inst Analyt Sci, Shaanxi Prov Key Lab Electoanalyt Chem, Xian 710069, Shaanxi, Peoples R China.

年份：2012

卷号：65

起止页码：64-69

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20120914810355);Scopus(收录号：2-s2.0-84857373416);WOS:【SCI-EXPANDED(收录号:WOS:000301806600011)】；

基金：The authors appreciate the financial support from the National Natural Science Foundation of China (No. 20875076).

语种：英文

外文关键词：Non-enzymatic glucose sensor; Nanohybrid films; Carbon nanotubes; Ionic liquids

摘要：In this paper, nickel was combined with multi-walled carbon nanotubes (Ni-MWNTs) to fabricate nanohybrid films on a conventional glassy carbon electrode using simultaneous electrodeposition of NiCl2 and the MWNTs in ionic liquids (ILs). The morphologies and elemental compositions of the nanohybrid films were investigated with scanning electron microscopy and energy dispersive spectroscopy. A novel non-enzymatic glucose sensor based on the Ni-MWNT nanohybrid film-modified glassy carbon electrode was described, and its electrochemical behaviors were investigated. The proposed sensor exhibited high electrocatalytic activity and good response to glucose. Under optimal conditions, the sensor showed high sensitivity (67.2 mu A mM(-1) cm(-2)), rapid response time (<2 s) and a low detection limit (0.89 mu M; signal/noise ratio of 3). In particular, the upper glucose concentration limit produced a linear response of 17.5 mM. Thus, the Ni-MWNT nanohybrid films represent promising sensor materials for non-enzymatic glucose sensing in routine analyses. (C) 2012 Elsevier Ltd. All rights reserved.