1. School of
Chemical Engineering, University of Campinas, UNICAMP, 13083-970, Campinas,
SP, P.O. Box 6066, Brazil
2. Brazilian Synchrotron Light Laboratory, 13083-970, Campinas, SP, P.O. Box
6192, Brazil
3. Institute of Physics, University of São Paulo, Rua
do Matão, Travessa R, São Paulo, SP, 05314-970, Brazil
4. Chemical Engineering
Department, University of São Paulo, Escola Politécnica, Av. Prof. Luciano Gualberto, Travessa
3, São Paulo, SP, 05508-010, Brazil