1. CDMF, LIEC, Federal University of São Carlos, P.O. Box 676, 13565-905 São Carlos, SP, Brazil
2. Department of Physical Chemistry, University of Valencia, Burjassot 46100, Spain
3. Department of Analytical and Physical Chemistry, University Jaume I, Castelló 12071, Spain
4. Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, SP, Brazil