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A simple method for catalyst immobilization on electrode surfaces
Author(s) -
De Smet Steven,
Cassidy John,
McCormac Tim,
Maes Noel A.
Publication year - 1995
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140070819
Subject(s) - glucose oxidase , polystyrene , ferrocene , electrode , catalysis , layer (electronics) , glassy carbon , cobalt , materials science , composite number , chemistry , chemical engineering , inorganic chemistry , electrochemistry , organic chemistry , nanotechnology , cyclic voltammetry , composite material , polymer , engineering
Catalytic layers of a cobalt tetraphenylporphyrin/polystyrene composite coated on a glassy carbon electrode are shown to allow the reduction of oxygen at less negative potentials than at the bare electrode. When this layer was overcoated with a glucose oxidase (GOD) layer, the glucose could be determined under aerobic conditions. A similar ferrocene/polystyrene composite overcoated with a glucose oxidase layer allowed the determination of glucose under anaerobic conditions.