Search Results - "Sigmon, Ginger"

Solid-State Transformation of Uranyl Peroxide Materials through High-Level Irradiation by Fairley, Melissa, Sigmon, Ginger E., LaVerne, Jay A.

“…The solid-state transformation of sodium uranyl triperoxide (Na4(UO2)(O2)3·9H2O, NaUT) to sodium uranyl tricarbonate (Na4(UO2)(CO3)3) by radiolysis was…”
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Extension of the Plutonium Oxide Nanocluster Family to Include {Pu16} and {Pu22} by Sigmon, Ginger E., Hixon, Amy E.

“…Plutonium(IV) oxide nanoclusters represent an interesting scientific problem regarding structure‐function relationships and are also relevant to global…”
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Removal of oil droplets from contaminated water using magnetic carbon nanotubes by Wang, Haitao, Lin, Kun-Yi, Jing, Benxin, Krylova, Galyna, Sigmon, Ginger E., McGinn, Paul, Zhu, Yingxi, Na, Chongzheng

“…Water contaminated by oil and gas production poses challenges to the management of America's water resources. Here we report the design, fabrication, and…”
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Electrochemistry of Uranyl Peroxide Solutions during Electrospray Ionization by Rodriguez, Virginia G., Culbertson, Heather J., Sigmon, Ginger E., Burns, Peter C.

“…The ionization of uranyl triperoxide monomer, [(UO2)­(O2)3]4– (UT), and uranyl peroxide cage cluster, [(UO2)28(O2)42 – x (OH)2x ]28– (U28), was studied with…”
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Symmetry versus Minimal Pentagonal Adjacencies in Uranium-Based Polyoxometalate Fullerene Topologies by Sigmon, Ginger E., Unruh, Daniel K., Ling, Jie, Weaver, Brittany, Ward, Matthew, Pressprich, Laura, Simonetti, Antonio, Burns, Peter C.

“…C U soon: Clusters containing 60, 44, and 36 uranyl peroxide hydroxide polyhedra (see picture) adopt fullerene topologies of maximum symmetry. The largest of…”
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Ozone-Facilitated Formation of Uranyl Peroxide in Humid Conditions by Benjamin, Savannah E., LaVerne, Jay A., Sigmon, Ginger E., Burns, Peter C.

“…Metaschoepite, [(UO2)8O2(OH)12]­(H2O)10, maintained in a high relative humidity (RH) environment with air initially transformed into an intermediate phase that…”
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Investigation of Radiation Effects in the Uranyl Mineral Metaschoepite by Benjamin, Savannah E., LaVerne, Jay A., Sigmon, Ginger E., Burns, Peter C.

“…The effects of water vapor and He ion irradiation on the alteration of particles of the uranyl hydroxide phase metaschoepite, [(UO2)8O2(OH)12]­(H2O)10, are…”
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Coacervate Formation in Dilute Aqueous Solutions of Inorganic Molecular Clusters with Simple Divalent Countercations by Xiao, Kexing, Yang, Yuqing, Xu, Xiaohan, Szymanowski, Jennifer E. S., Zhou, Yifan, Sigmon, Ginger E., Burns, Peter C., Liu, Tianbo

“…We report a complex coacervate formed by a 2.5 nm-diameter, rigid uranyl peroxide molecular cluster (Li68K12(OH)20)­[UO2(O2)­OH]60, U60 60–) and SrCl2 salt in…”
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Experimental and Quantum Mechanical Characterization of an Oxygen‐Bridged Plutonium(IV) Dimer by Ray, Debmalya, Xie, Jing, White, Jacob, Sigmon, Ginger E., Gagliardi, Laura, Hixon, Amy E.

“…We report the synthesis and characterization of K4{[PuCl2(NO3)3]2(μ2‐O)}⋅H2O, which contains the first known μ2‐oxo bridge between two PuIV metal centers…”
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Uranyl peroxide enhanced nuclear fuel corrosion in seawater by Armstrong, Christopher R, Nyman, May, Shvareva, Tatiana, Sigmon, Ginger E, Burns, Peter C, Navrotsky, Alexandra

“…The Fukushima-Daiichi nuclear accident brought together compromised irradiated fuel and large amounts of seawater in a high radiation field. Based on newly…”
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Rapid Self-Assembly of Uranyl Polyhedra into Crown Clusters by Sigmon, Ginger E, Burns, Peter C

“…Clusters built from 32 uranyl peroxide polyhedra self-assemble and crystallize within 15 min after combining uranyl nitrate, ammonium hydroxide, and hydrogen…”
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Stability of Solid Uranyl Peroxides under Irradiation by Fairley, Melissa, Myers, Nicholas M, Szymanowski, Jennifer E. S, Sigmon, Ginger E, Burns, Peter C, LaVerne, Jay A

“…The effects of radiation on a variety of uranyl peroxide compounds were examined using γ-rays and 5 MeV He ions, the latter to simulate α-particles. The…”
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Uranyl−Peroxide Interactions Favor Nanocluster Self-Assembly by Sigmon, Ginger E, Ling, Jie, Unruh, Daniel K, Moore-Shay, Laura, Ward, Matthew, Weaver, Brittany, Burns, Peter C

“…Uranyl peroxide polyhedra are known to self-assemble into complex closed clusters with fullerene and other topologies containing as many as 60 polyhedra. Here…”
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Kinetics of Na- and K- uranyl arsenate dissolution by Meza, Isabel, Jemison, Noah, Gonzalez-Estrella, Jorge, Burns, Peter C., Rodriguez, Virginia, Sigmon, Ginger E., Szymanowski, Jennifer E.S., Ali, Abdul-Mehdi S., Gagnon, Kaelin, Cerrato, José M., Lichtner, Peter

“…We integrated aqueous chemistry analyses with geochemical modeling to determine the kinetics of the dissolution of Na and K uranyl arsenate solids (UAs(s)) at…”
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Radiation-Induced Solid-State Transformations of Uranyl Peroxides by Fairley, Melissa, Felton, Daniel E, Sigmon, Ginger E, Szymanowski, Jennifer E. S, Poole, Nicholas A, Nyman, May, Burns, Peter C, LaVerne, Jay A

“…Single-crystal X-ray diffraction studies of pristine and γ-irradiated Ca2[UO2(O2)3]·9H2O reveal site-specific atomic-scale changes during the solid-state…”
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Raman Spectroscopic and ESI-MS Characterization of Uranyl Peroxide Cage Clusters by McGrail, Brendan T, Sigmon, Ginger E, Jouffret, Laurent J, Andrews, Christopher R, Burns, Peter C

“…Strategies for interpreting mass spectrometric and Raman spectroscopic data have been developed to study the structure and reactivity of uranyl peroxide cage…”
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Solubility and Thermodynamic Investigation of Meta-Autunite Group Uranyl Arsenate Solids with Monovalent Cations Na and K by Meza, Isabel, Gonzalez-Estrella, Jorge, Burns, Peter C., Rodriguez, Virginia, Velasco, Carmen A., Sigmon, Ginger E., Szymanowski, Jennifer E. S., Forbes, Tori Z., Applegate, Lindsey M., Ali, Abdul-Mehdi S., Lichtner, Peter, Cerrato, José M.

“…We investigated the aqueous solubility and thermodynamic properties of two meta-autunite group uranyl arsenate solids (UAs). The measured solubility products…”
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Insight into the Structural Ambiguity of Actinide(IV) Oxalate Sheet Structures: A Case for Alternate Coordination Geometries by Sockwell, A. Kirstin, Sweet, Teagan F. M., Barth, Brodie, Isbill, Sara B., DiBlasi, Nicole A., Szymanowski, Jennifer E. S., Sigmon, Ginger E., Oliver, Allen G., Miskowiec, Andrew J., Burns, Peter C., Hixon, Amy E.

“…Plutonium(IV) oxalate hexahydrate (Pu(C2O4)2 ⋅ 6 H2O; PuOx) is an important intermediate in the recovery of plutonium from used nuclear fuel. Its formation by…”
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Front Cover: Insight into the Structural Ambiguity of Actinide(IV) Oxalate Sheet Structures: A Case for Alternate Coordination Geometries (Chem. Eur. J. 47/2023) by Sockwell, A. Kirstin, Sweet, Teagan F. M., Barth, Brodie, Isbill, Sara B., DiBlasi, Nicole A., Szymanowski, Jennifer E. S., Sigmon, Ginger E., Oliver, Allen G., Miskowiec, Andrew J., Burns, Peter C., Hixon, Amy E.

“…Old, limited data in the nuclear field is relied upon, but often requires revisiting for clarity. Like cracked glasses, flaws in old data can lead to missing…”
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Insight into the Structural Ambiguity of Actinide(IV) Oxalate Sheet Structures: A Case for Alternate Coordination Geometries by Sockwell, A. Kirstin, Sweet, Teagan F. M., Barth, Brodie, Isbill, Sara B., DiBlasi, Nicole A., Szymanowski, Jennifer E. S., Sigmon, Ginger E., Oliver, Allen G., Miskowiec, Andrew J., Burns, Peter C., Hixon, Amy E.

“…Invited for the cover of this issue is the group of Amy Hixon at the University of Notre Dame. The image depicts the newly identified structure of a PuIV…”
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