Modification of electrode surfaces: deposition of thin layers of polypyrrole--Au nanoparticle materials using a combination of interphase synthesis and dip-in method

Marianna Gniadek; Sylwia Modzelewska; Mikolaj Donten; Zbigniew Stojek

doi:10.1021/ac902426c

Modification of electrode surfaces: deposition of thin layers of polypyrrole--Au nanoparticle materials using a combination of interphase synthesis and dip-in method

Anal Chem. 2010 Jan 15;82(2):469-72. doi: 10.1021/ac902426c.

Authors

Marianna Gniadek¹, Sylwia Modzelewska, Mikolaj Donten, Zbigniew Stojek

Affiliation

¹ Department of Chemistry, University of Warsaw, ul. Pasteura 1, PL-02-093 Warsaw.

PMID: 20038092
DOI: 10.1021/ac902426c

Abstract

Formation of thin layers of the composite material by a method based on interphase polymerization induced by a transport-controlled redox reaction is described. The obtained films were of 0.2-1 microm thickness, consisted of polypyrrole and gold nanoparticles (up to 13.5 at. %), strongly adhered to the substrate surface, and were uniform. Different carbon materials and glass wool were employed as the substrates. The first step in the synthesis was deposition of an organic layer on the substrate. This was followed by dipping the substrate in an aqueous solution containing an oxidizer and appropriate washing and drying the composite film.