Ni-doped perovskite anodes have been investigated for oxidation of hydrogen in IT-SOFC. Perovskite materials are characterized by mixed electronic-ionic conductivity that combined to the high intrinsic catalytic activity of Ni allows to achieve high reaction rates. Suitable power densities of about 420mW=cm2 for the direct oxidation of hydrogen were achieved at 800 1C. Temperature programmed reduction analysis carried out in hydrogen reveals that the catalyst at 800 1C has totally lost the perovskite structure showing formation of substructures such as NiOOH and NiLa2O4.
Investigation of composite Ni-doped perovskite anode catalyst for electrooxidation of hydrogen in solid oxide fuel cell
Giovanni Brunaccini;Massimiliano Lo Faro;Daniela La Rosa;Vincenzo Antonucci;
2008
Abstract
Ni-doped perovskite anodes have been investigated for oxidation of hydrogen in IT-SOFC. Perovskite materials are characterized by mixed electronic-ionic conductivity that combined to the high intrinsic catalytic activity of Ni allows to achieve high reaction rates. Suitable power densities of about 420mW=cm2 for the direct oxidation of hydrogen were achieved at 800 1C. Temperature programmed reduction analysis carried out in hydrogen reveals that the catalyst at 800 1C has totally lost the perovskite structure showing formation of substructures such as NiOOH and NiLa2O4.File in questo prodotto:
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