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Browsing by Author Braga, Valdeilson Souza
Showing results 1 to 4 of 4
Issue Date | Title | Author(s) | Type |
2008 | Esterification of acetic acid with alcohols using supported niobium pentoxide on silica–alumina catalysts | Braga, Valdeilson Souza; Barros, Ivoneide de Carvalho Lopes; Garcia, Fillipe Augusto da Costa; Dias, Sílvia Cláudia Loureiro; Dias, José Alves | Artigo de Periódico |
2008 | Phase transition in niobium pentoxide supported on silica-alumina | Braga, Valdeilson Souza; Garcia, Fillipe Augusto da Costa; Dias, José Alves; Dias, Sílvia Cláudia Loureiro | Artigo de Periódico |
2008 | Immobilization of Fe, Mn and Co tetraphenylporphyrin complexes in MCM-41 and their catalytic activity in cyclohexene oxidation reaction by hydrogen peroxide | Costa, Andréia A.; Ghesti, Grace F.; Macedo, Julio L. de; Braga, Valdeilson Souza; Santos, Marcello M.; Dias, José Alves; Dias, Sílvia Cláudia Loureiro | Artigo de Periódico |
2007 | Acidic Characterization of Copper Oxide and Niobium Pentoxide Supported on Silica–Alumina | Garcia, Fillipe Augusto da Costa; Braga, Valdeilson Souza; Dias, José Alves; Silva, Júnia Chaves Marinho e; Dias, Sílvia Cláudia Loureiro; Davo, Jorge L. B. | Artigo de Periódico |