Search Results - "POPA, Karin"

Radioactive wastewaters purification using titanosilicates materials: State of the art and perspectives by Popa, Karin, Pavel, Claudiu C.

“…The present paper aims to survey the literature and also to present our latest results on the uptake of radiocations and their inactive homologues on different…”
Get full text

Hydrothermal decomposition of actinide(IV) oxalates: a new aqueous route towards reactive actinide oxide nanocrystals by Walter, Olaf, Popa, Karin, Blanco, Oliver Dieste

“…The hydrothermal decomposition of actinide(IV) oxalates ( = Th, U, Pu) at temperatures between 95 and 250 °C is shown to lead to the production of highly…”
Get full text

Synthesis of Nanocrystalline PuO2 by Hydrothermal and Thermal Decomposition of Pu(IV) Oxalate: A Comparative Study by Baumann, Viktoria, Popa, Karin, Walter, Olaf, Rivenet, Murielle, Senentz, Gérald, Morel, Bertrand, Konings, Rudy J.M.

“…In recent years, the hydrothermal conversion of actinide (IV) oxalates into nanometric actinide dioxides (AnO2) has begun to be investigated as an alternative…”
Get full text

Nano and micro U1-Th O2 solid solutions: From powders to pellets by Balice, Luca, Bouëxière, Daniel, Cologna, Marco, Cambriani, Andrea, Vigier, Jean-François, De Bona, Emanuele, Sorarù, Gian Domenico, Kübel, Christian, Walter, Olaf, Popa, Karin

Get full text

Determination of REE, U, Th, Ba, and Zr in simulated hydrogeological leachates by ICP-AES after matrix solvent extraction by Ayranov, Marin, Cobos, Joaquin, Popa, Karin, Rondinella, Vincenzo V.

“…A fast, reliable and precise method for the determination of Ba, Zr, Th, U, La, Ce, Eu, Hf and Gd in leaching solutions containing up to 1 mol/L FeCl 3 by…”
Get full text

Sorption of uranium on lead hydroxyapatite by Popa, Karin

“…The uranium sorption from diluted aqueous solution onto lead hydroxyapatite was studied by using a batch-mode technique and the fluorimetric determination of…”
Get full text

Grain growth of NpO2 and UO2 nanocrystals by Baumann, Viktoria, Popa, Karin, Cologna, Marco, Rivenet, Murielle, Walter, Olaf

“…We report on the crystallite growth of nanometric NpO2 and UO2 powders. The AnO2 nanoparticles (An = U and Np) were synthesized by hydrothermal decomposition…”
Get full text

Grain growth of NpO 2 and UO 2 nanocrystals by Baumann, Viktoria, Popa, Karin, Cologna, Marco, Rivenet, Murielle, Walter, Olaf

“…We report on the crystallite growth of nanometric NpO and UO powders. The AnO nanoparticles (An = U and Np) were synthesized by hydrothermal decomposition of…”
Get full text

Microstructure, electrical and humidity sensing properties of light rare earths zirconates by Petrila, Iulian, Popa, Karin, Tudorache, Florin

“…•Applicative microstructure and electrical properties of light rare earths zirconates.•High physical and chemical stability of light rare earths zirconates…”
Get full text

Cyanide Reaction with Ninhydrin: Elucidation of Reaction and Interference Mechanisms by DROCHIOIU, Gabi, MANGALAGIU, Ionel, AVRAM, Ecaterina, POPA, Karin, DIRTU, Alin Constantin, DRUTA, Ioan

“…A new sensitive spectrophotometric method has recently been developed for the trace determination of cyanide with ninhydrin. Cyanide ion was supposed to act as…”
Get full text

Investigations on the ion exchange process of Cs+ and Sr2+ cations by ETS materials by Pavel, Claudiu C., Popa, Karin

“…[Display omitted] •Microporous titanosilicates ETS-4 and ETS-10 are used as effective ion exchangers.•Ionic selectivities for Cs and Sr ions were estimated…”
Get full text

Size Dependence of Lattice Parameter and Electronic Structure in CeO2 Nanoparticles by Prieur, Damien, Bonani, Walter, Popa, Karin, Walter, Olaf, Kriegsman, Kyle W, Engelhard, Mark H, Guo, Xiaofeng, Eloirdi, Rachel, Gouder, Thomas, Beck, Aaron, Vitova, Tonya, Scheinost, Andreas C, Kvashnina, Kristina, Martin, Philippe

“…Intrinsic properties of a compound (e.g., electronic structure, crystallographic structure, optical and magnetic properties) define notably its chemical and…”
Get full text

Encapsulation of Uranium Oxide in Multiwall WS 2 Nanotubes by Kundrat, Vojtech, Cohen, Hagai, Kossoy, Anna, Bonani, Walter, Houben, Lothar, Zalesak, Jakub, Wu, Bing, Sofer, Zdenek, Popa, Karin, Tenne, Reshef

“…Uranium is a high-value energy element, yet also poses an appreciable environmental burden. The demand for a straightforward, low energy, and environmentally…”
Get full text

Encapsulation of Uranium Oxide in Multiwall WS 2 Nanotubes (Small 14/2024) by Kundrat, Vojtech, Cohen, Hagai, Kossoy, Anna, Bonani, Walter, Houben, Lothar, Zalesak, Jakub, Wu, Bing, Sofer, Zdenek, Popa, Karin, Tenne, Reshef

Get full text

Oxidation of Micro- and Nanograined UO2 Pellets by In Situ Synchrotron X‑ray Diffraction by De Bona, Emanuele, Popa, Karin, Walter, Olaf, Cologna, Marco, Hennig, Christoph, Scheinost, Andreas C, Prieur, Damien

“…When in contact with oxidizing media, UO2 pellets used as nuclear fuel may transform into U4O9, U3O7, and U3O8. The latter starts forming by stress-induced…”
Get full text

Probing the Local Coordination of Hexavalent Uranium and the Splitting of 5f Orbitals Induced by Chemical Bonding by Amidani, Lucia, Retegan, Marius, Volkova, Anna, Popa, Karin, Martin, Philippe M, Kvashnina, Kristina O

“…We report here a detailed experimental and theoretical investigation of hexavalent uranium in various local configurations with a high-energy-resolution…”
Get full text

Kinetic study on the grain growth of PuO2 nanocrystals by Bouëxière, Daniel, Popa, Karin, Walter, Olaf, Cologna, Marco

“…Kinetic measurements on the grain growth of PuO2 nano-crystals are presented. On the basis of isothermal XRD measurements at temperatures of 820 °C, 900 °C,…”
Get full text

Encapsulation of Uranium Oxide in Multiwall WS2 Nanotubes by Kundrat, Vojtech, Cohen, Hagai, Kossoy, Anna, Bonani, Walter, Houben, Lothar, Zalesak, Jakub, Wu, Bing, Sofer, Zdenek, Popa, Karin, Tenne, Reshef

“…Uranium is a high‐value energy element, yet also poses an appreciable environmental burden. The demand for a straightforward, low energy, and environmentally…”
Get full text

Encapsulation of Uranium Oxide in Multiwall WS2 Nanotubes (Small 14/2024) by Kundrat, Vojtech, Cohen, Hagai, Kossoy, Anna, Bonani, Walter, Houben, Lothar, Zalesak, Jakub, Wu, Bing, Sofer, Zdenek, Popa, Karin, Tenne, Reshef

“…Uranium Oxide In article number 2307684, Vojtech Kundrat, Reshef Tenne, and co‐workers encapsulated Urania (WO2) in the hollow core of multiwall WS2 nanotubes…”
Get full text

Oxidation of Micro- and Nanograined UO 2 Pellets by In Situ Synchrotron X-ray Diffraction by De Bona, Emanuele, Popa, Karin, Walter, Olaf, Cologna, Marco, Hennig, Christoph, Scheinost, Andreas C, Prieur, Damien

“…When in contact with oxidizing media, UO pellets used as nuclear fuel may transform into U O , U O , and U O . The latter starts forming by stress-induced…”
Get full text