MACHADO, M.MORAES, L.P.R.RODRIGUES, L.N.RODRIGUES, T.S.FONSECA, F.C.2020-03-022020-03-022019MACHADO, M.; MORAES, L.P.R.; RODRIGUES, L.N.; RODRIGUES, T.S.; FONSECA, F.C. Lowering the sintering temperature of a SOFC by morphology control of the electrolyte powder. <b>ECS Transactions</b>, v. 91, n. 1, p. 1193-1199, 2019. DOI: <a href="https://dx.doi.org/10.1149/09101.1193ecst">10.1149/09101.1193ecst</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30855.1938-5862http://repositorio.ipen.br/handle/123456789/30855Solid oxide fuel cells are fabricated by two-step sintering at low temperature by controlling the morphology of the gadolinium-doped cerium oxide (GDC) electrolyte powders. The GDC electrolyte was synthesized by a hydrothermal route to obtain highly reactive nanorods that can fully densify at temperatures around 1150 °C. The developed system consists of the GDC electrolyte support, lanthanum strontium cobalt ferrite (LSCF) cathode and Ni/GDC anode. The electrolyte support was prepared by uniaxial die pressing and sintered at 1150 °C, and fuel cells were obtained by co-sintering electrode layers at the same temperature. The performance of the cell was evaluated in hydrogen at intermediate temperatures (IT). The experimental results indicate that high-performance IT-SOFC can be obtained at low sintering temperatures by controlling the morphology of electrolyte powder.1193-1199openAccesssinteringsolid oxide fuel cellssolid electrolytespowdersmorphologyhydrothermal synthesissintered materialscerium oxidesdoped materialsArtigo de periódico19110.1149/09101.1193ecst0000-0003-0708-2021https://orcid.org/0000-0003-0708-2021Sem Percentil41.00