Jo, Sung Eun Jeon, SungHyun Kim, Hyong June Yang, Byung Chan Ju, Kyoungjae Gur, Turgut M. Jung, WooChul An, Jihwan 2024-01-19T08:33:29Z 2024-01-19T08:33:29Z 2023-10-29 2024-01 2366-9608 https://pubs.kist.re.kr/handle/201004/113277 Employing porous structures is essential in high-performance electrochemical energy devices. However, obtaining uniform functional coatings on high-tortuosity structures can be challenging, even with specialized processes such as atomic layer deposition (ALD). Herein, a novel method for achieving a porous composite electrode for solid oxide fuel cells by coating La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) powders with ZrO2 using a powder ALD process is presented. Unlike conventional ALD, powder ALD can be used to fabricate extremely uniform coatings on porous electrodes with a thickness of tens of micrometers. The powder ALD ZrO2 coating is found to effectively suppress chemical degradation of the LSCF electrodes. The cell with the powder ALD coated cathode shows a 2.2 times higher maximum power density and 60% lower thermal degradation in activation resistance than the bare LSCF cathode cell at 700-750 degrees C. The result demonstrated in this study is expected to have significant implications for high-performance and durable electrodes in energy conversion/storage devices. English WILEY-V C H VERLAG GMBH Simultaneous Performance and Stability Enhancement in Intermediate Temperature Solid Oxide Fuel Cells by Powder-Atomic Layer Deposited LSCF@ZrO2 Cathodes Article 10.1002/smtd.202300790 1 Small Methods, v.8, no.1 Small Methods 8 1 N scie scopus 001071478900001 2-s2.0-85172350694 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article OXYGEN-EXCHANGE SR SEGREGATION THIN-FILM SURFACE atomic layer deposition cathodes LSCF(La0.6Sr0.4Co0.2Fe0.8O3-delta) powder solid oxide fuel cells