Catalytic CeO<inf>2</inf> washcoat over microchanneled supporting cathodes of solid oxide electrolysis cells for efficient and stable CO<inf>2</inf> reduction
MetadataShow full item record
© 2018 Elsevier B.V. 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 the implementation of catalysts into conventional Ni-based cathode supports of solid oxide electrolysis cells via the infiltration process to accelerate CO2 electrolysis. Infiltrating a CeO2 colloid precursor to prepare catalytic washcoat has been demonstrated as a more efficient catalyst preparation and resulted in a more stable CO2 electrolysis performance, compared with infiltrating conventional nitrate precursors. The catalytic CeO2 washcoat possesses a uniform particle size distribution and strong adhesion to the cathode scaffold surface. The optimization of the infiltration process results in a remarkable stability of CO2 electrolysis performance during cell operation for 334 h owing to the stable catalyst microstructure.
Showing items related by title, author, creator and subject.
Perovskite chromates cathode with resolved and anchored nickel nano-particles for direct high-temperature steam electrolysisXu, S.; Dong, Dehua; Wang, Y.; Doherty, W.; Xie, K.; Wu, Y. (2013)Doped lanthanum chromates are now commonly used to prepare composite cathodes for direct steam electrolysis. However, the limitation of electrochemical performances and cell current efficiency by insufficient electro-catalytic ...
Hierarchically ordered porous Ni-based cathode-supported solid oxide electrolysis cells for stable CO2 electrolysis without safe gasDong, Dehua; Xu, S.; Shao, Xin; Hucker, L.; Marin, J.; Pham, T.; Xie, K.; Ye, Z.; Yang, P.; Yu, L.; Parkinson, G.; Li, C. (2017)This study reported a hierarchically ordered porous Ni-based cathode of a solid oxide electrolysis cell to realise stable CO 2 electrolysis without the need of safe gas. The Ni/(Y 2 O 3 ) 0.08 (ZrO 2 ) 0.92 (YSZ) cathode ...
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. ...