Sara E. Gilson
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View article: Structural and chemical insights on the incorporation of americium into zircaloy-derived monoclinic zirconia
Structural and chemical insights on the incorporation of americium into zircaloy-derived monoclinic zirconia Open
Monoclinic zirconia ( m- ZrO 2 ) forms on the internal surface of nuclear fuel Zircaloy cladding, acting as a critical barrier against radionuclide release at the fuel-cladding interface. However, the incorporation of minor actinide elemen…
View article: Investigating Np(VI) Nitrate Speciation Control through Temperature and Optical Spectroscopy
Investigating Np(VI) Nitrate Speciation Control through Temperature and Optical Spectroscopy Open
Numerous areas of nuclear processing, such as radioisotope production, nuclear waste remediation, and separations, depend upon the speciation of f-elements in the solution state. However, fundamental knowledge of the actinidesparticularly…
View article: Structural and Chemical Insights on the Incorporation of Americium into Monoclinic Zirconia (m-ZrO₂)
Structural and Chemical Insights on the Incorporation of Americium into Monoclinic Zirconia (m-ZrO₂) Open
Monoclinic zirconia (m-ZrO2) has been long of fundamental chemical interest and crucially it serves as a key barrier to radionuclide release at the fuel–zircaloy interface in spent nuclear fuel. However, the incorporation of transplutonic …
View article: Insights into Tetravalent Np Speciation in HNO<sub>3</sub> through Spectroelectrochemistry and Multivariate Analysis
Insights into Tetravalent Np Speciation in HNO<sub>3</sub> through Spectroelectrochemistry and Multivariate Analysis Open
In situ optical spectroscopy, spectropotentiometry, and multivariate analysis were applied to the Np(IV) nitrate system to better understand speciation and quantify HNO3 concentration. Thin-layer spectropotentiometry, or spectroelectrochem…
View article: Investigation of Radiation Damage in the Monazite-Type Solid Solution La<sub>1–<i>x</i></sub>Ce<sub><i>x</i></sub>PO<sub>4</sub>
Investigation of Radiation Damage in the Monazite-Type Solid Solution La<sub>1–<i>x</i></sub>Ce<sub><i>x</i></sub>PO<sub>4</sub> Open
Crystalline materials such as monazite have been considered for the storage of radionuclides due to their favorable radiation stability. Understanding their structural chemical response to radiation damage as solid solutions is a key compo…
View article: Grazing-incidence synchrotron radiation diffraction studies on irradiated Ce-doped and pristine Y-stabilized ZrO<sub>2</sub> at the Rossendorf beamline
Grazing-incidence synchrotron radiation diffraction studies on irradiated Ce-doped and pristine Y-stabilized ZrO<sub>2</sub> at the Rossendorf beamline Open
In this work, Ce-doped yttria-stabilized zirconia (YSZ) and pure YSZ phases were subjected to irradiation with 14 MeV Au ions. Irradiation studies were performed to simulate long-term structural and microstructural damage due to self-irrad…
View article: Optimizing synthesis strategies for the production of single-phase zirconates with Ce and Nd co-doping
Optimizing synthesis strategies for the production of single-phase zirconates with Ce and Nd co-doping Open
Zirconia-based ceramics are promising host matrices for the immobilization of radionuclides in high-level waste streams due to their high radiation resistance and chemical stability. This study explores coprecipitation and different solid-…
View article: Quantifying neptunium oxidation states in nitric acid through spectroelectrochemistry and chemometrics
Quantifying neptunium oxidation states in nitric acid through spectroelectrochemistry and chemometrics Open
Controlled-potential in situ thin-layer spectropotentiometry was leveraged to generate visible/near-infrared (VIS/NIR) absorption spectral data sets for the development of chemometric models to quantify Np(III/IV/V/VI) oxidation states in …
View article: Linker Contribution toward Stability of Metal–Organic Frameworks under Ionizing Radiation
Linker Contribution toward Stability of Metal–Organic Frameworks under Ionizing Radiation Open
Here, the effects of radiation on a series of UiO derivative metal–organic frameworks (MOFs) that contain the same zirconium hexamer node and similar organic linkers, UiO-66, UiO-66–NH2, UiO-66–OH, and NU-403, were examined using γ-rays an…
View article: CCDC 2103779: Experimental Crystal Structure Determination
CCDC 2103779: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Unusual Metal–Organic Framework Topology and Radiation Resistance through Neptunyl Coordination Chemistry
Unusual Metal–Organic Framework Topology and Radiation Resistance through Neptunyl Coordination Chemistry Open
A Np(V) neptunyl metal-organic framework (MOF) with rod-shaped secondary building units was synthesized, characterized, and irradiated with γ rays. Single-crystal X-ray diffraction data revealed an anionic framework containing infinite hel…
View article: Unprecedented Radiation Resistant Thorium–Binaphthol Metal–Organic Framework
Unprecedented Radiation Resistant Thorium–Binaphthol Metal–Organic Framework Open
A thorium-organic framework (TOF-16) containing hexameric secondary building units connected by functionalized binaphthol linkers was synthesized, characterized, and irradiated to probe its radiation resistance. Radiation stability was exa…
View article: In Situ Formation of Unprecedented Neptunium-Oxide Wheel Clusters Stabilized in a Metal–Organic Framework
In Situ Formation of Unprecedented Neptunium-Oxide Wheel Clusters Stabilized in a Metal–Organic Framework Open
An isostructural series of Np(V) MOFs with shp-topology were synthesized and characterized. X-ray diffraction data revealed an unusual wheel-shaped node of 18 neptunyl polyhedra stabilized in the framework. Strong distortion in local coord…