[1] Univ Loughborough, Dept Chem Engn, Loughborough LE11 3TU, Leics, England
[2] Inst Potosino Invest Cient & Tecnol, IPICYT, Div Mat Avanzados, San Luis Potosi 78216, SLP, Mexico
[3] Univ Autonoma Metropolitana Iztapalapa, Dept Quim, Mexico City 09340, DF, Mexico