1. PPGE3M, School of Engineering; Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500; Porto Alegre RS 91501-970 Brazil
2. Laboratory of Technological Processes and Catalysis; Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500; Porto Alegre RS 91501-970 Brazil
3. Materials Science Graduate Program; Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500; Porto Alegre RS 91501-970 Brazil