1. Graduate Program in Materials Science and Engineering (PPGCEM/UFSCar)─Rodovia Washington Luiz, km 235, Federal University of Sao Carlos, São Carlos, São Paulo CEP 13565-905, Brazil
2. Department of Materials Engineering (DEMa/UFSCar)─Rodovia Washington Luiz, km 235, Federal University of São Carlos, São Carlos, CEP 13565-905, Brazil
3. Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm Platz 1, Mülheim an der Ruhr 45470, Germany