Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 109, Issue 1, Pages 167-170Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2005.03.094
Keywords
nanostructuring; Prussian blue; hydrogen peroxide; electroanalysis
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We have been reported before on the possibility for nanostructuring of Prussian blue (PB) by its electrodeposition through liquid crystal template for improving of analytical performances. In this paper, we propose further development of PB based microelectrodes by simplification of nanostructuring procedure. It is possible by electrodeposition of nanostructured PB films without using template. Analytical performances of the resulting PB based nanoelectrode arrays have been studied in course of hydrogen peroxide detection in FIA mode. The value of sensitivity for obtained sensors was 0.2 A M-1 cm(-2), which is two times more than for electrodes modified by PB electrodeposited through liquid crystal template. Detection limit was 10(-8) M and a linear calibration range was extending over six orders of magnitude of H2O2 concentrations, which are the most advantageous analytical performances in hydrogen peroxide electroanalysis nowadays. (c) 2005 Elsevier B.V. All rights reserved.
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