Abstract
The conductive polymer poly(neutral red) polymerized on a graphite electrode (PNR/graphite) as a support material was used for catalytic oxidation of ethanol in acidic solution and investigated by electrochemical methods. Pt particles loaded on the surface of PNR/graphite electrode exhibited higher electrocatalytic activity for ethanol oxidation in comparison with Pt particles supported directly on graphite. With the equivalent loading mass of Pt catalyst, the special activity (SA) at peak a of the Pt/PNR/graphite electrode polymerized for 10 cycles in 5 × 10−4 M NR + 0.5 M H2SO4 solution is 3,478 A C−1 and about 2.20 times higher than that of the Pt/graphite electrode (1,582 A C−1). The results show that the electrochemical performance of Pt catalyst for ethanol oxidation is improved by the addition of PNR
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