文献类型：期刊文献

英文题名：A Comparative Study of Nonenzymatic Electrochemical Glucose Sensors Based on Pt-Pd Nanotube and Nanowire Arrays

作者：Li, Yuxiu[1];Niu, Xiangheng[1];Tang, Jie[1];Lan, Minbo[1,2];Zhao, Hongli[3]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Inst Appl Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：130

起止页码：1

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20141517552939);WOS:【SCI-EXPANDED(收录号:WOS:000336880700001)】；

基金：This research was financially supported by National Natural Science Foundation of China (NSFC, no. 21305044) and Science and Technology Commission of Shanghai Municipality (STCSM, no. 13510710900).

语种：英文

外文关键词：Nanowires; Nanotubes; Pt-Pd; Nonenzymatic glucose sensor; Catalytic activity

摘要：Facilitating the glucose electro-oxidation reaction is always of great scientific sense due to its wide applications in sensing, catalysis and biofuel cells. On the road to improving the electrocatalysis of glucose, one-dimensional materials mainly including nanowires and nanotubes are commonly proposed because of their fascinating characters, and both of them are reported capable of offering better catalytic performance compared to commercial Pt/C and Pt black catalysts. However, so far it still confuses us that which structure can provide more favorable properties towards the direct electro-oxidation of glucose. Here we carry out a systematically comparative study of nonenzymatic electrochemical sensors based on vertical nanowire and nanotube arrays for glucose detection. By using bimetallic Pt-Pd as a general model, we demonstrate that nanotube arrays, owing to their larger catalytic area and higher catalyst utilization, show higher activity for glucose electro-oxidation and enzyme-free analysis than nanowire arrays. These findings may be helpful for the future design of more efficient catalyst structures for glucose oxidation and other reactions. (C) 2014 Elsevier Ltd. All rights reserved.