Journal
ELECTROANALYSIS
Volume 16, Issue 13-14, Pages 1101-1112Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200403003
Keywords
horseradish peroxidase; graphite; gold; silver; modified electrodes
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The role of the electrode material in the efficiency of direct (non-mediated) bioelectrocatalytic reduction of H2O2, catalyzed by horseradish peroxidase (HRP) is studied and discussed. The variations in direct peroxidase bioelectrocatalysis when coming from carbon/graphite to metal electrodes and oxides, as well as modified electrodes, are analyzed regarding the variations in adsorption/orientation of peroxidase at the electrodes, interfacial electron transfer rates and mechanism of catalysis.
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