標題: A high performance electrochemical sensor for acetaminophen based on a rGO-PEDOT nanotube composite modified electrode
作者: Huang, Tzu-Yen
Kung, Chung-Wei
Wei, Hung-Yu
Boopathi, Karunakara Moorthy
Chu, Chih-Wei
Ho, Kuo-Chuan
光電工程學系
Department of Photonics
公開日期: 2014
摘要: 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.
URI: http://hdl.handle.net/11536/24314
http://dx.doi.org/10.1039/c4ta00309h
ISSN: 2050-7488
DOI: 10.1039/c4ta00309h
期刊: JOURNAL OF MATERIALS CHEMISTRY A
Volume: 2
Issue: 20
起始頁: 7229
結束頁: 7237
顯示於類別:期刊論文


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