Song, Seung Hak Moon, Jooho Kim, Jeong Hun Hong, Jongsup Lee, Jong-Ho Lee, Hae-Weon Kim, Byung-Kook Kim, Hyoungchul 2024-01-20T04:01:05Z 2024-01-20T04:01:05Z 2021-09-05 2016-07 1359-6454 https://pubs.kist.re.kr/handle/201004/123903 Oxygen processes (reduction and evolution) play a central role in a variety of physical and chemical applications to meet the growing demands for energy and environmental protection. However, the discovery and optimization of such functional materials are great challenges because they are still hampered by material inherencies and thermodynamic limits. Here, we demonstrate the fabrication of a novel material structure via atomistic doping and nanoscale compositing, a panoscopic alloying powder (PAP) of cobalt in a CeO2-ZrO2 solid solution. This novel structure possesses superior oxygen-storage capacity (OSC) and improved structural stability because it retains the best features of both transition metal oxides and ceria-based ceramics. According to the thermogravimetry and dilatometry measurements of a 10 mol% PAP sample, (Ce0.65Co0.10)Zr0.25O2-delta, at 800 degrees C under cyclic reduction-oxidation, an OSC of 2312 mu mol-O g(-1) was successfully obtained with negligible structural change and a linear strain of 1%. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD CERIA OXIDES OXIDATION CEO2 CO CATALYSTS MN CU Panoscopic alloying of cobalt in CeO2-ZrO2 solid solutions for superior oxygen-storage capacity Article 10.1016/j.actamat.2016.04.060 1 ACTA MATERIALIA, v.113, pp.206 - 212 ACTA MATERIALIA 113 206 212 scie scopus 000378670300021 2-s2.0-84966698702 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article CERIA OXIDES OXIDATION CEO2 CO CATALYSTS MN CU Panoscopic alloy powder Oxygen storage capacity Ceria-zirconia Oxygen evolution Structural irreversibility