Prussian blue-modified nanoporous gold film electrode for amperometric determination of hydrogen peroxide.
In this manuscript, the electrocatalytic reduction of hydrogen peroxides on Prussian blue (PB) modified nanoporous gold film (NPGF) electrode is described. The PB/NPGF is prepared by simple anodizing of a smooth gold film followed by PB film electrodeposition method. The morphology of the PB/NPGF electrode is characterized using scanning electron microscopy (SEM). The effect of solution pH and the scan rates on the voltammetric responses of hydrogen peroxide have also been examined. The amperometric determination of H2O2 shows two linear dynamic responses over the concentration range of 1μM-10μM and 10μM-100μM with a detection limit of 3.6×10(-7)M. Furthermore, this electrode demonstrated good stability, repeatability and selectivity remarkably.
Department of chemistry, University of Isfahan, Isfahan, 81746-73441, Iran.
Seyran
S
Ghaderi
Department of chemistry, University of Isfahan, Isfahan, 81746-73441, Iran. Electronic address: m.mehrgardi@chem.ui.ac.ir.
Masoud Ayatollahi
MA
Mehrgardi
D055664:Electrochemical Techniques / Q000295:instrumentation / Q000379:methods; D004566:Electrodes; D005295:Ferrocyanides / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000032:analysis*; D057230:Limit of Detection; D016014:Linear Models; D058608:Nanopores; D015203:Reproducibility of Results
D005295:Ferrocyanides; D006046:Gold; D006861:Hydrogen Peroxide; C000170:ferric ferrocyanide
Amperometric sensor; Electrocatalysis; Hydrogen peroxide; Nanoporous gold film; Prussian blue