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Abstract:
A-site deficient Sr0.9Y0.08Ti0.95Ni0.05O3-δ (SYTN) is synthesized and applied as a highly active fuel electrode for reversible solid oxide cells (RSOCs). The as-prepared SYTN shows an n-type conduction mechanism and a high electrical conductivity of 19.7 S cm−1. Based on the density functional theory calculations, it is found that a stronger hybridization of Ni-d and O-p orbit. The exsolved nanoparticles with the perovskite supporter show high catalytic activity. The SYTN anode presents a low Rp of 0.36 Ω cm2 at 800 °C in 5% H2/N2. A single cell with SYTN anode and a 170 μm thick Sc2O3 stabilized-ZrO2 electrolyte layer exhibits maximum power densities of 873 and 412 mW cm−2 at 800 °C using humidified H2 and CH4 as fuels respectively. © 2020 Elsevier B.V.
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Materials Letters
ISSN: 0167-577X
Year: 2020
Volume: 279
3 . 4 2 3
JCR@2020
3 . 4 2 3
JCR@2020
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:84
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 1
SCOPUS Cited Count: 6
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
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