Novel Zn-Al layered double hydroxide/carbon nanotube nanocomposite for electrochemical determination of catechol and hydroquinone

被引：21

作者：

Bai, Peifeng ^{[1
]}

Fan, Guoli ^{[1
]}

Li, Feng ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 15-16期

关键词：

Carbon nanotubes; Nanocomposite; Layered double hydroxide; Dihydroxybenzene; Simultaneous determination; ELECTRON-TRANSFER; CARBON;

D O I：

10.1016/j.matlet.2011.05.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel nanocomposite of Zn-Al layered double hydroxide (LDH) and poly acrylic acid-functionalized multi-walled carbon nanotubes was assembled successfully through interfacial electrostatic interaction between the positively-charged layers of LDH nanocrystallites and the negatively-charged functional groups on the surface of functionalized carbon nanotubes. The resulting glassy carbon electrode modified by as-assembled nanocomposite exhibited excellent electrochemical activity toward the oxidation of catechol. The oxidation peak potential difference of catechol and hydroquinone was achieved at modified electrode, which could effectively distinguish catechol from hydroquinone. The present work provided a new method for electrochemical determination of dihydroxybenzene isomers with high sensitivity. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2330 / 2332

页数：3

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