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11 results on '"Findling, Nathaniel"'

1. Selenium Nanowire Formation by Reacting Selenate with Magnetite

Author

Poulain, Agnieszka, primary, Fernandez-Martinez, Alejandro, additional, Greneche, Jean-Marc, additional, Prieur, Damien, additional, Scheinost, Andreas C., additional, Menguy, Nicolas, additional, Bureau, Sarah, additional, Magnin, Valérie, additional, Findling, Nathaniel, additional, Drnec, Jakub, additional, Martens, Isaac, additional, Mirolo, Marta, additional, and Charlet, Laurent, additional

Published
2022
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4. XANES-Based Determination of Redox Potentials Imposed by Steel Corrosion Products in Cement-Based Media

Author

Ma, Bin, primary, Fernandez-Martinez, Alejandro, additional, Madé, Benoît, additional, Findling, Nathaniel, additional, Markelova, Ekaterina, additional, Salas-Colera, Eduardo, additional, Maffeis, Thierry G.G., additional, Lewis, Aled R., additional, Tisserand, Delphine, additional, Bureau, Sarah, additional, and Charlet, Laurent, additional

Published
2018
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5. Selenite Uptake by Ca–Al LDH: A Description of Intercalated Anion Coordination Geometries

Author

Ma, Bin, primary, Fernandez-Martinez, Alejandro, additional, Grangeon, Sylvain, additional, Tournassat, Christophe, additional, Findling, Nathaniel, additional, Carrero, Sergio, additional, Tisserand, Delphine, additional, Bureau, Sarah, additional, Elkaïm, Erik, additional, Marini, Carlo, additional, Aquilanti, Giuliana, additional, Koishi, Ayumi, additional, Marty, Nicolas C. M., additional, and Charlet, Laurent, additional

Published
2018
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6. Evidence of Multiple Sorption Modes in Layered Double Hydroxides Using Mo As Structural Probe

Author

Ma, Bin, primary, Fernandez-Martinez, Alejandro, additional, Grangeon, Sylvain, additional, Tournassat, Christophe, additional, Findling, Nathaniel, additional, Claret, Francis, additional, Koishi, Ayumi, additional, Marty, Nicolas C. M., additional, Tisserand, Delphine, additional, Bureau, Sarah, additional, Salas-Colera, Eduardo, additional, Elkaïm, Erik, additional, Marini, Carlo, additional, and Charlet, Laurent, additional

Published
2017
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7. XANES-Based Determination of Redox Potentials Imposed by Steel Corrosion Products in Cement-Based Media

Author

Ma, Bin, Fernandez-Martinez, Alejandro, Madé, Benoît, Findling, Nathaniel, Markelova, Ekaterina, Salas-Colera, Eduardo, Maffeis, Thierry G.G., Lewis, Aled R., Tisserand, Delphine, Bureau, Sarah, and Charlet, Laurent

Abstract

The redox potential (Eh) in a cementitious nuclear waste repository is critical to the retardation behavior of redox-sensitive radionuclides (RNs), and largely controlled by embedded steel corrosion but hard to be determined experimentally. Here, we propose an innovative Eh determination method based on chemical/spectroscopic measurements. Oxidized nuclides (UVI, SeIV, MoVI, and SbV) were employed as species probes to detect the Eh values imposed by steel (Fe0) and steel corrosion products (magnetite/hematite, and magnetite/goethite couples) in cement pore water. Nuclides showed good sorption affinity, especially toward Fe0, in decreasing Kdorder for U > Sb > Se > Mo under both N2and H2atmospheres. The reduced nuclide species were identified as UO2, U4O9, FeSe, FeSe2, Se0, Sb0, and Sb2O3, but no redox transformation occurred for Mo. Eh values were obtained by using the Nernst equation. Remarkably, their values fell in a small range centered around −456 mV at pH ∼ 13.5 for both Fe0and Fe-oxyhydroxides couples. This Eh value appears to be controlled by the nanocrystalline Fe(OH)2/Fe(OH)3or (Fe1–x,Cax)(OH)2/Fe(OH)3couple, whose presence was confirmed by pair distribution function analyses. This approach could pave the way for describing the Eh gradient in reinforced concrete where traditional Eh measurements are not feasible.

Published
2024
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8. Fate of Ag-NPs in Sewage Sludge after Application on Agricultural Soils

Author

Pradas del Real, Ana E., primary, Castillo-Michel, Hiram, additional, Kaegi, Ralf, additional, Sinnet, Brian, additional, Magnin, Valérie, additional, Findling, Nathaniel, additional, Villanova, Julie, additional, Carrière, Marie, additional, Santaella, Catherine, additional, Fernández-Martı́nez, Alejandro, additional, Levard, Clément, additional, and Sarret, Géraldine, additional

Published
2016
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