H2O2 sensor modified by MWCNTs/nano-CeO2/PANI

ZHANG Jia-li; GAN Wei; SONG Qi; CHEN Ai-xi

doi:10.13873/j.1000-97872014.02.002

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H₂O₂ sensor modified by MWCNTs/nano-CeO₂/PANI

更新时间：2025-09-11

- H₂O₂ sensor modified by MWCNTs/nano-CeO₂/PANI
- Vol. 33, Issue 2, Pages: 90-93+97(2014)
- 作者机构：
  
  1. 华东交通大学基础科学学院化学化工系
  2. 华东交通大学基础科学学院物理系
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872014.02.002
  CLC： O657.1
- Published：2014
- 稿件说明：
移动端阅览
[1]章家立,甘维,宋琦,陈爱喜.MWCNTs/nano-CeO_2/PANI修饰的H_2O_2传感器[J].传感器与微系统,2014,33(02):90-93+97.

ZHANG Jia-li, GAN Wei, SONG Qi, et al. H₂O₂ sensor modified by MWCNTs/nano-CeO₂/PANI[J]. 2014, 33(2): 90-93+97.
[1]章家立,甘维,宋琦,陈爱喜.MWCNTs/nano-CeO_2/PANI修饰的H_2O_2传感器[J].传感器与微系统,2014,33(02):90-93+97. DOI： 10.13873/j.1000-97872014.02.002.

ZHANG Jia-li, GAN Wei, SONG Qi, et al. H₂O₂ sensor modified by MWCNTs/nano-CeO₂/PANI[J]. 2014, 33(2): 90-93+97. DOI： 10.13873/j.1000-97872014.02.002.

摘要

采用循环伏安和滴涂的方法在玻碳电极上制备出一种均匀且具有高电活性聚苯胺（PANI）/多壁碳纳米管（MWCNTs）/纳米氧化铈（nano-CeO2）复合膜。从膜的厚度、pH值、碳纳米管（CNTs）与nanoCeO2的质量比等方面系统地研究了复合膜探测H2O2浓度的各影响因素。结果表明:循环伏安聚合25圈的聚苯胺分散和固定CNTs

nano-CeO2

以及辣根H2O2酶的能力较好

且以CNTs与nano-CeO2的质量比为15∶1的复合膜在pH=6.4的缓冲溶液中具有较高的电活性。该复合膜修饰的电极对H2O2具有良好的响应电流

较快的响应时间（

5 s）

较宽的检测范围为5.0×10-6

.95×10-4mol/L

较低的检出极限7.6×10-7mol/L（S/N=3 dB）。

Abstract

A homogeneous electroactive polyaniline（PANI） and multiwall carbon nanotube（MWCNT） composite film-modified electrode is fabricated by cyclic voltammetry and casting method.The PANI / MWCNTs / nano-CeO 2 composite film-modified electrode is systematically investigated by changing their thickness

pH values of solution

mass ratio of MWCNT to nano-CeO 2.These results show that the PANI film

prepared for 25 cycles by cyclic voltammetry and the mass ratio of 15∶ 1

has better immobilization and high dispersion for MWCNT

nano-CeO 2 and Horseradish peroxidase

and high electroactivity in pH = 6.4 buffer solution contain

ing H 2 O 2.The electrocatalytic behavior of H 2 O 2 indicates that the electrode modified by composite film has excellent response current and short response time（

5s） for H 2 O 2

（PANI） wide detection range of 5.0 × 10- 6

3.95 × 10- 4mol / L

low detecting limit 7.6 × 10- 7mol / L（S / N = 3 dB）.

关键词

Keywords

references

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Modification of glassy carbon electrode with polyaniline/multi-walled carbon nanotubes composite: Application to electro-reduction of bromate [J] . Liang Ding,Qin Li,Dandan Zhou,Hao Cui,Hao An,Jianping Zhai. Journal of Electroanalytical Chemistry . 2011

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