Resumo

URETA-ZANARTU, M. SOLEDAD; MONTENEGRO, MACARENA  e  ZAGAL, JOSÉ H.. METHANOL ELECTRO-OXIDATION ON Pt-Rh ALLOYS IN ACID MEDIUM. Bol. Soc. Chil. Quím. [online]. 2001, vol.46, n.2, pp. 209-216. ISSN 0366-1644.  doi: 10.4067/S0366-16442001000200016.

Methanol oxidation on Pt-Rh alloys of different compositions in sulfuric acid solution was studied by cyclic voltammetry (CV). Rh increases the activity of Pt electrodes for methanol oxidation, specially for the 87-13 Pt-Rh alloy. This enhancement is discussed and attributed to a bifunctional mechanism

Palavras-chave : methanol electrooxidation; Pt-Rh alloy; Pt-Rh electrode.