[1] Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA
[2] Univ Sao Paulo, Inst Quim, Ave Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP, Brazil
[3] Univ Nacl Ingn, Fac Ciencias, Lab Invest Electroquim Aplicada, Ave Tupac Amaru 210, Rimac, Lima, Peru
[4] Univ Fed Goias, Inst Quim, Ave Esperanca S-N, BR-74690900 Goiania, GO, Brazil