1. LSQM – Laboratory of Chemical Synthesis of Materials – Department of Materials Engineering
2. Federal University of Rio Grande do Norte – UFRN
3. Natal RN
4. Brazil
5. Departament of Chemistry
6. State University of Minas Gerais
7. Divinópolis
8. Department of Chemistry
9. State University of Ponta Grossa
10. Ponta Grossa