Journal
MICROCHIMICA ACTA
Volume 180, Issue 1-2, Pages 145-150Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-012-0916-0
Keywords
Template method; Cu2O; Nanowires; Hydrogen peroxide; Sensor
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Funding
- National Natural Science Foundation of China [51101129]
- Natural Science Foundation Project of CQ CSTC [2009BB4304]
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Granular nanowires with a diameter of about 60 nm were fabricated from cuprous oxide (Cu2O) by an electrochemical method using anodic aluminium oxide as the template. A non-enzymatic sensor for hydrogen peroxide (H2O2) was then developed on the basis of a gold electrode modified with Cu2O nanowires and Nafion. The resulting sensor enables the determination of H2O2 with a sensitivity of 745 mu AmM-1 cm(-2), over a wide linear range (0.25 mu M to 5.0 mM), and with a low detection limit (0.12 mu M). The results demonstrate that the use of such granular nanowires provides a promising tool for the design of non-enzymatic chemical sensors.
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