INVESTIGADORES
MOGNI Liliana Veronica
artículos
Título:
Study of Sr2MgMo0.9Ni0.1O6-δ as SOFC anode
Autor/es:
DAGER, P.K.; MOGNI, L.V.; ZAMPIERI, G.; CANEIRO, A.
Revista:
ECS Transactions
Editorial:
Electrochemical Society Inc.
Referencias:
Año: 2017 vol. 78 p. 1367 - 1374
ISSN:
1938-5862
Resumen:
Sr2MgMo0.9Ni0.1O6-δ (SMMNi) double perovskite was synthesized by the combustion-solution method followed by annealing in air at 1100°C for 12 hours. Sr2MgMoO6-δ (SMMO) compound was also tested for comparison. X-Ray Diffraction (XRD) patterns indicate that SMMO and SMMNi powders display triclinic symmetry. Thermogravimetric studies show that Mo-substitution by Ni in SMMO decreases the oxygen content in air condition. Meanwhile, after calcination in diluted-H2 both compounds show oxygen nonstoichiometric change Δδ ≈ 0.06. EIS measurements on symmetrical SMMO/GDC/SMMO and SMMNi/GDC/SMMNi cells were performed in order to study the influence of time and environment conditions (H2-content) on the anode polarization resistance (Rpa).
