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Enhanced intermediate-temperature CO[subscript 2] splitting using nonstoichiometric ceria and ceria–zirconia
Published 2018“…Its performance depends critically on the properties of the oxygen carriers (OC). Ceria is recognized as one of the most promising OC candidates, because of its fast chemistry, high ionic diffusivity, and large oxygen storage capacity. …”
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Redox Kinetics Study of Fuel Reduced Ceria for Chemical-Looping Water Splitting
Published 2017“…Its efficiency and performance depend critically on the reduction and oxidation (redox) properties of the oxygen carriers (OC). Ceria is recognized as one of the most promising OC candidates, because of its fast chemistry, high ionic diffusivity, and large oxygen storage capacity. …”
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First-Principles Assessment of H[subscript 2]S and H[subscript 2]O Reaction Mechanisms and the Subsequent Hydrogen Absorption on the CeO[subscript 2](111) Surface
Published 2014“…The main goal of this study is to assess the resistance of ceria against hydrogen penetration into its bulk, in the context of its application as a protective surface coating against hydrogen embrittlement in metals. …”
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Solubility Limit of Cu and Factors Governing the Reactivity of Cu–CeO[subscript 2] Assessed from First-Principles Defect Chemistry and Thermodynamics
Published 2020“…We used first-principle calculations and statistical thermodynamics to assess Cu defect configurations and oxidation states in bulk ceria, at both equilibrium and non-equilibrium conditions. …”
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Stabilizing single atoms and a lower oxidation state of Cu by a ½[110]{100} edge dislocation in Cu-CeO₂
Published 2019“…A ½[110]{100} edge dislocation in Cu doped ceria, Cu-CeO₂, is investigated as a model system with density functional theory. …”
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Role of surface oxygen-to-metal ratio on the wettability of rare-earth oxides
Published 2015“…Using X-ray Photoelectron Spectroscopy and wetting measurements, we show that freshly sputtered ceria is hydrophilic due to excess surface oxygen (shown to have an O/Ce ratio of ∼3 and a water contact angle of ∼15°), which when relaxed in a clean, ultra-high vacuum environment isolated from airborne contaminants reaches close to stoichiometric O/Ce ratio (∼2.2) and becomes hydrophobic (contact angle of ∼104°). …”
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