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Fabrication of Poly(allylamine)ferrocene Monolayer Based on Electrostatic Interaction and Its Electrocatalytic Oxidation of Ascorbic Acid
Author(s) -
Zhang Suxia,
Fu Yaqin,
Sun Changqing
Publication year - 2003
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.200390093
Subject(s) - overpotential , ascorbic acid , allylamine , ferrocene , electrode , monolayer , electrochemistry , cyclic voltammetry , inorganic chemistry , materials science , chemistry , voltammetry , chemical engineering , organic chemistry , nanotechnology , polyelectrolyte , polymer , food science , engineering
A poly(allylamine)ferrocene monolayer was built on the surface of gold electrode modified with negatively charged alkanethiol based on electrostatic interaction. The electrochemical behavior of the modified electrode was characterized by cyclic voltammetry in detail. The modified electrode was shown to exhibit excellent electrocatalytic response to the oxidation of ascorbic acid. The anodic overpotential was reduced by about 170 mV compared with that obtained at a bare gold electrode. The modified electrode possesses several attractive features, such as simple preparation, fast response and good chemical and mechanical stability.