IMMOBILISATION OF THE VITAMIN B_(12) DERIVATIVE B_(12)-TYRAMIDE ON ELECTRODE SURFACES

摘要

The hexamethyl cob(III)yrinic acid c-tyramide was prepared for its immobilisation on electrodes. The electropolymerisation of this compound onto Pt and glassy carbon electrodes was successful and details of these reactions were explored. The grafting procedure, in which tyramine was first electropolymerized on the electrode followed by the electro-oxidative attachment of the B_(12)-tyramide provided a further method for this immobilisation. Exploratory experiments for the electrocatalytic activity of these coated electrodes are reported.