Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 13, Issue 10, Pages 3404-3411Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ee01308k
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Funding
- Samsung Research Funding & Incubation Center of Samsung Electronics [SRFC-MA1502-52]
- National Research Foundation of Korea [4120200413631] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We demonstrate theoretically and experimentally that engineering of cation-oxygen bond strength in a perovskite structure can control redox ex-solution of B-site metals and thus the formation of metal nanoparticles at the oxide surface upon high-temperature reduction. In particular, we show that large isovalent doping significantly promotes the B-site ex-solution via tuning of the cation-oxygen bond strength, leading to high catalytic activity of CO oxidation. This method to promote ex-solution can be readily applied to various heterogeneous catalysts.
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