期刊
ELECTROCHIMICA ACTA
卷 155, 期 -, 页码 78-84出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.12.139
关键词
Pyrocatechol violet; Carbon nanotubes; Copper nanoparticles; Synergic effect
资金
- National Nature Sciences Foundation of China [21175114, 21305067]
- Natural Science Foundation of Jiangsu [BK2011441, 20130754]
- Qing Lan project of Jiangsu provinceand NJUST Research Funding [2012ZDJH009]
- Fundamental Research Funds for the Central Universities [30920130112012]
Copper nanoparticles (CuNPs) form by in situ electrochemical reduction of chelated copper ions on the electrode with pyrocatechol violet (PCV) and single walled carbon nanotubes (SWCNTs). The electrodeposited PCV is used as chelating agent for copper ions as well as the redox mediator during the electrocatalysis of H2O2. Due to the synergic effect of SWCNTs/PCV/CuNPs, the modified electrode gives enhanced analytical performance for detection of H2O2 at -0.2 V vs. SCE with an enlarged linear response as a function of peroxide concentration spanning 2 x 10(-6) to 1.2 x 10(-2) M. (C) 2014 Elsevier Ltd. All rights reserved.
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