Effect of W on PtSn/C catalyst for ethanol electrooxidation - Ribeiro, J.; Anjos, D. M. dos; Léger, J. M.; Hahn, F.; Olivi, Paulo; Andrade, Adalgisa Rodrigues de; Tremiliosi Filho, Germano; Kokoh, K. B. (Journal of Applied Electrochemistry, 2008)