Co2MnO4 spinel-palladium co-infiltrated La 0.7Ca0.3Cr0.5Mn0.5O 3-[delta] cathodes for intermediate temperature solid oxide fuel cells
MetadataShow full item record
The effect of co-infiltration of Co2MnO4 (CM) spinel oxides and Pd on the electrochemical activity and microstructure stability of La0.7Ca0.3Cr0.5Mn0.5O3-i (LCCM) cathodes for the O2 reduction reaction of intermediate temperature solid oxide fuel cells (IT-SOFCs) has been investigated in detail. The microstructure, thermal stability, electrochemical activity and stability of the Co2MnO4–Pd/PdO owdersand Co2MnO4–Pd/PdO co-impregnated LCCM cathode were measured using thermal gravimetric analysis, X-ray diffraction, scanning electron microscopy and electrochemical impedance spectroscopy. The results indicate that the addition of spinel oxides effectively inhibits the growth and coalescence of the Pd/PdO nanoparticles and stabilizes the microstructure of the Pd/PdO at high temperatures. The best electrochemical activity and stability of LCCM cathodes were obtained on the cathode co-infiltrated with 50 wt% PdO/50 wt% Co2MnO4. The enhancement is due to the significantly improved stability of the microstructure as a result of the inhibited grain growth and agglomeration of Pd/PdO nanoparticles by the co-infiltrated Co2MnO4 spinel phase.
Showing items related by title, author, creator and subject.
Effect of volatile boron species on the electrocatalytic activity of cathodes of solid oxide fuel cellsChen, Kongfa; Ai, Na; Zhao, L.; Jiang, San Ping (2013)The effect of volatile boron species on the electrocatalytic activity, microstructure and phase stability of conventional La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) and nano-structured LSCF infiltrated Gd0.1Ce0.9O1.95 (LSCF-GDC) ...
Performance and stability of La0.8Sr0.2MnO3 cathode promoted with palladium based catalysts in solid oxide fuel cellsBabaei, A.; Zhang, L.; Liu, E.; Jiang, San Ping (2011)The effect of catalyst loading, operation temperature and co-infiltration of the palladium-based catalystson the performance and stability of La0.8Sr0.2MnO3 (LSM) cathode of solid oxide fuel cells (SOFCs) isinvestigated. ...
Catalytic CeO2 washcoat over microchanneled supporting cathodes of solid oxide electrolysis cells for efficient and stable CO2 reductionWang, J.; Wang, T.; Yu, L.; Wei, T.; Hu, X.; Ye, Z.; Wang, Z.; Buckley, Craig; Yao, J.; Marnellos, G.; Dong, Dehua (2019)Infiltration is an effective way to improve porous electrode performance of solid oxide cells while the preparation procedure and catalyst stability still remain challenging. The microchannel structure of cathodes enables ...