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A utilização de etanol em célula a combustível de óxido sólido
Fiuza,Raigenis da Paz; Silva,Marcos Aurélio da; Pontes,Luiz Antônio Magalhães; Teixeira,Leonardo Sena Gomes; Boaventura,Jaime SoaresThis work reports a review on the status and technical feasibility of the application of ethanol as fuel for Solid Oxide Fuel Cells (SOFC), presenting both external reform and cell with direct utilization of ethanol. Based on this survey, both experimental results and mathematical modeling indicated the technical feasibility of power generation by ethanol SOFC, with cell units producing 450 mW/cm², sufficient f...
Synthesis and characterization of polyesters derived from glycerol and phthalic...
Guimarães,Danilo Hansen; Brioude,Michel de Meireles; Fiúza,Raigens da Paz; Prado,Luis Antônio Sanches de Almeida; Boaventura,Jaime SoaresThe production of polyester via polycondensation between glycerol and phthalic acid using dibutyltin dilaurate is reported. Three glycerol:phthalic acid molar ratio used for the bulk polymerization were: 2:2; 2:3 and 2:4. FTIR confirmed the esterification of glycerol by the acid for all the polymers. DSC indicated no crystallinity, although the XRD plots indicate a very incipient crystallinity for the polymers ...
Synthesis and characterization of aliphatic polyesters from glycerol, by-produc...
Brioude,Michel de Meireles; Guimarães,Danilo Hansen; Fiúza,Raigenis da Paz; Prado,Luis Antônio Sanches de Almeida; Boaventura,Jaime SoaresIn the present work, polyesters were prepared from the polycondensation between glycerol and adipic acid using dibutyltin dilaurate as catalyst. Three glycerol: adipic acid molar ratio were used for the bulk polymerization namely: 2:2; 2:3 and 2:4. FTIR confirmed the esterification of glycerol by the acid for all the polymers. DSC and XRD indicated no crystallinity for all the polymers. The morphology of the ma...