Electrocatalytic properties of nanocomposites based on conducting polymers and titanium dioxide in oxygen reduction process

Autor:	Ya. I. Kurys, V. D. Pokhodenko, O. S. Dodon, Vyacheslav G. Koshechko, O. O. Ustavytska
Rok vydání:	2012
Předmět:	chemistry.chemical_classification Conductive polymer Materials science Inorganic chemistry chemistry.chemical_element Polymer Electrocatalyst chemistry.chemical_compound chemistry Polyaniline Titanium dioxide Electrochemistry Phosphomolybdic acid Platinum Bifunctional
Zdroj:	Russian Journal of Electrochemistry. 48:1058-1064
ISSN:	1608-3342 1023-1935
DOI:	10.1134/s1023193512110092
Popis:	Electrochemical characteristics and electrocatalytic properties in the oxygen reduction reaction are studied on hybrid nanocomposites based on conducting polymers (polyaniline, polypyrrol) doped with phosphomolybdic acid (PMA), and TiO2 and also their bifunctional analogs containing up to 5 wt % of nanosize platinum. It is found that the obtained nanocomposites in 0.5 M H2SO4 are capable of reversible electro-chemical redox transitions (in the range of potentials from −0.6 to 1.0 V vs. Ag/AgCl), in which the main contribution is provided by the corresponding conducting polymer and dopant (PMA). It is shown that activity of the studied nanocomposites in the oxygen reduction reaction is caused by the joint catalytic effect of all their components: the polymer, TiO2, H3PMo12O40, Pt.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4a5ca8b13dea99e6cbadfe41baa29b73 https://doi.org/10.1134/s1023193512110092 Zobrazit plný text záznamu Full text from SpringerLink