Direct ethanol fuel cell: electrochemical performance at 90 grau celsius on PT and PtSn/C electrocatalysts - Purgato, Fabiana Lopes da Silva; Pronier, S; Olivi, Paulo; Andrade, Adalgisa Rodrigues de; Léger, Jean-Michel; Tremiliosi Filho, Germano; Kokoh, K. B. (Journal of Power Sources, 2012)