Preparation and electrochemical performance of polyaniline/pt microelectrodes

The synthesis of polyaniline/platinum microelectrodes (PPME) have been achieved for the first time by using the controlled electrochemical reduction of PtCl62−. First, the PANI film was electrochemical prepared on the glass carbon electrode (GCE) surface by using the method of CV. It was found that the PANI film is composed of 100-200 nm diameter rods. Then, the electrochemical reduction of PtCl62− on the PANI modified surface was carried out and Pt particle was about 300-600 nm in diameter on the end of PANI membranes. Electrochemical experiments show that the microelectrodes have superior catalytic performance toward formaldehyde and methanol electrochemical oxidation.