期刊
TALANTA
卷 80, 期 3, 页码 1371-1377出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2009.09.038
关键词
Copper oxide; Porous film; Non-enzymatic sensor; Glucose; Amperometry
资金
- Korea government (MOST) [R01-2007-000-10322-0]
- National Research Foundation of Korea [2008-313-D00237, R01-2007-000-10322-0, 2007-0052486] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The porous Cu film was deposited on a Pt/Ti/Si substrate by electrochemical deposition accompanied by hydrogen evolution at very high current densities. CuO films with similar morphologies were obtained by subsequent annealing of the porous copper films. The morphology, composition and structure of the porous Cu and porous CuO were investigated by FE-SEM, EDS and XRD methods. The complete transformation of Cu to CuO after annealing was indicated. The sensing performances of the porous CuO film were evaluated in alkaline solution with the porous CuO film showing a wide linearity range from 1 mu M to 2.5 mM with sensitivity of 2.9 mA cm(-2) mM(-1), and detection limit of 0.14 mu M. The sensor showed good selectivity to conventional intermediates such as AA and UA and long term stability. (C) 2009 Elsevier B.V. All rights reserved.
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