期刊
MATERIALS LETTERS
卷 279, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2020.128503
关键词
Solid oxide cell; Interfaces; Electrochemical properties; Energy storage and conversion
资金
- National Natural Science Foundation of China [51737011, 51877173]
- State of Grid [SGSDJN00FZQT1700446]
- China Postdoctoral Science Foundation [2017T100750]
A-site deficient Sr0.9Y0.08Ti0.95Ni0.05O3-delta (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 52 cm(2) at 800 degrees C in 5% H-2/N-2. A single cell with SYTN anode and a 170 gm thick Sc2O3 stabilized-ZrO2 electrolyte layer exhibits maximum power densities of 873 and 412 mW cm(2) at 800 degrees C using humidified H-2 and CH4 as fuels respectively. (c) 2020 Elsevier B.V. All rights reserved.
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