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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Interface Effects in the Stability of 2D Silica, Silicide, and Silicene on Pt(111) and Rh(111)
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In Situ Formation of Isolated Bimetallic PtCe Sites of Single-Dispersed Pt on CeO2 for Low-Temperature CO Oxidation
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Ferromagnetic L1 0 -Structured CoPt Nanoparticles for Permanent Magnets and Low Pt-Based Catalysts
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Z-Contrast Enhancement in Au–Pt Nanocatalysts by Correlative X-ray Absorption Spectroscopy and Electron Microscopy: Implications for Composition Determination
The properties of bimetallic nanoparticles (BNPs) vary widely as a function of their composition and size distributions. X-ray absorption fine structure analysis is commonly used to characterize their structure, but its application to elements that are close to each other in the periodic table is hampered by poor Z-contrast. For this study, we trained an artificial neural network to recognize the partial coordination numbers in AuPt NPs synthesized via peptide templating using their X-ray absorption near-edge structure spectra. This approach, combined with scanning transmission electron microscopy analysis, revealed unique details of this prototype catalytic system that has different forms of heterogeneities at both the intra- and inter-particle levels. Our method based on the enhancement of Z-contrast of metal species will have implications for compositional studies of BNPs.
In Situ Identification of Non-Specific Adsorption of Alkali Metal Cations on Pt Surfaces and Their Catalytic Roles in Alkaline Solutions
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Metal–Support Interactions and C1 Chemistry: Transforming Pt-CeO 2 into a Highly Active and Stable Catalyst for the Conversion of Carbon Dioxide and Methane
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Yolk?Shell Pt-NiCe@SiO[subscript 2] Single-Atom-Alloy Catalysts for Low-Temperature Dry Reforming of
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Manganese Oxide Overlayers Promote CO Oxidation on Pt
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