Issue 20, 2014

A high performance electrochemical sensor for acetaminophen based on a rGO–PEDOT nanotube composite modified electrode

Abstract

In this study, we perform an electrochemical sensing using a conductive composite film containing reduced graphene oxide (rGO) and poly(3,4-ethylenedioxythiophene) nanotubes (PEDOT NTs) as an electrode modifier on a glassy carbon electrode (GCE). Scanning electron microscopy suggests that the rGO covers the surface of GCE uniformly and the PEDOT NTs act as a conducting bridge to connect the isolated rGO sheets. By combining these two materials, the conductivity and the surface coverage of the film can be enhanced, which is beneficial for electrochemical sensing. The rGO–PEDOT NT composite modified electrode is applied for an effective sensor to analyze acetaminophen. The obtained electrochemical activity is much higher than those obtained by the rGO- and PEDOT NT-modified electrodes; the higher electrochemical activity may be attributed to the higher conductivity and greater coverage of the rGO–PEDOT NT composite film on the GCE. Furthermore, interference tests indicate that the rGO–PEDOT NT composite modified electrode exhibits high selectivity toward the analyte. This novel method for combining the rGO and PEDOT NTs establishes a new class of carbon material-based electrodes for electrochemical sensors.

Graphical abstract: A high performance electrochemical sensor for acetaminophen based on a rGO–PEDOT nanotube composite modified electrode

Supplementary files

Article information

Article type
Paper
Submitted
19 Jan 2014
Accepted
25 Feb 2014
First published
25 Feb 2014

J. Mater. Chem. A, 2014,2, 7229-7237

Author version available

A high performance electrochemical sensor for acetaminophen based on a rGO–PEDOT nanotube composite modified electrode

T. Huang, C. Kung, H. Wei, K. M. Boopathi, C. Chu and K. Ho, J. Mater. Chem. A, 2014, 2, 7229 DOI: 10.1039/C4TA00309H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements