分析化学2011，Vol.39Issue(11)：1676-1681,6.DOI:10.3724/SP.J.1096.2011.01676
基于层层自组装技术制备石墨烯/多壁碳纳米管共修饰的过氧化氢传感器的研究
Hydrogen Peroxide Sensor Based on Grapheme/Multi-walled Carbon Nanotubes via Layer-by-Layer Assembly Technique
摘要
Abstract
An uniform stable poly(diallyldimethyl-ammonium chloride/graphene(PDDA/GR)/PDDA/ MWNTs composite membrane on the glassy carbon electrode were prepared by using layer-by-layer self assembly method based on the electrostatic adhesion among the cationic polymer PDDA and the functional negatively charged MWNTs and GR. The properties of the modified electrode have been studied by EIS and CV. The results indicate that this electrode shows better electrocatalytic activity in oxidation of H2O2. When working potential is set at 1.0 V, the electrode shows high sensitivity and wide detection range for detection of H2O2 in 0. 067 mol/L phosphate buffer solution. The range of linearity is 6×10-6-1.4 ×10-2 mol/L, the detection limit is 1. 2×10-7 mol/L (S/N = 3) and the linear correlation coefficient R = 0. 997. This electrode is of good stability and high selectivity.关键词
石墨烯/碳纳米管/玻碳电极/H2O2Key words
Graphene/ Carbon nanotubes/ Glass carbon electrode/ Hydrogen peroxide引用本文复制引用
刘艳,牛卫芬,徐岚..基于层层自组装技术制备石墨烯/多壁碳纳米管共修饰的过氧化氢传感器的研究[J].分析化学,2011,39(11):1676-1681,6.基金项目
本文系重庆市教委科学技术研究资助项目(No.KJ101315) （No.KJ101315）
