Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume -, Issue -, Pages -Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.2c01024
Keywords
Solid oxide fuel cells; Perovskite; Anode; In situ exsolution; Core-shell structure
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Funding
- National Key R&D Program of China [2018YFB1502601]
- Science and Technology Planning Project of Guangdong Province, China [2017B090916002]
- Young Key Teacher Foundation of Henan Province [2020GGJS227]
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The use of BSNFM-NFA/NFO ceramic anode improves the catalytic activity and coking resistance of solid oxide fuel cells.
A solid oxide fuel cell (SOFC) anode consisting of a NiFe bimetal alloy/(NiFe)O-x (NFA/NFO) core-shell-structured nanocatalyst-decorated ceramic substrate was fabricated by in situ reduction o f A-site deficient cubic perovskite (Ba0.2Sr0.8)(0.9)Ni0.07Fe0.63Mo0.3O3-6 (BSNFM) in wet H-2 at 800 degrees C. The BSNFM-NFA/NFO ceramic anode exhibits an excellent catalytic activity toward H-2 and hydrocarbon fuels. The La0.8Sr0.2Ga0.83Mg0.17O3-6 (LSGM) electrolyte-supported SOFC single cell with a BSNFM-NFA/NFO anode delivers a Pmax of 1099 mW cm(-2) in wet H-2 at 800 degrees C and 1049 mW cm(-2) in wet C3H8 at 850 degrees C, respectively. Moreover, the single cell with a BSNFM-NFA/NFO anode showed a stable output under a constant current density of 1.0 A cm(-2) at 750 degrees C in C3H8 fuel, suggesting that BSNFM-NFA/NFO is a promising anode with outstanding coking resistance.
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