Results 41 to 50 of about 2,642 (182)

PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING

Тонкие химические технологии, 2016
«New atomic energy technologies» federal program is being realized in Russia. This program includes experimental energy complex development and building, which contains: - a natural safety lead coolant fast reactor «BREST-300»; - a spent fuel recycle ...
M. Yu. Kalenova, A. V. Dmitrieva, I. V. Kuznetsov, А. М. Koscheev, O. E. Budin, A. S. Schepin   +5 more
doaj   +1 more source

Persilylated and Related Silyl Anion‐Induced Synthesis of Group 3–10 Metal–Silyl Complexes

Chemistry – A European Journal, EarlyView.
Persilylated and related silyl anions serve as powerful tools for constructing metal–silyl complexes across group 3–10 elements. Their strong σ‐donating ability and steric bulk stabilize low‐coordinate, reactive species and enable unique bonding motifs.
Yusuke Sunada
wiley   +1 more source

X‐Ray Absorption Sensitivity at 5d$5d$ Edges of High‐Valent Light Actinides to Crystal‐Field Strength and Covalency Effects

Chemistry – A European Journal, EarlyView.
Analysis of x‐ray absorption spectra of U(VI) and U(V) oxides indicates an important role of U 5f−O$5f-\rm{O}$ 2p$2p$ charge transfer for increasing the 5f$5f$ occupancy and thereby affecting the ground state properties. ABSTRACT The 5f$5f$ states were probed in ThO2$\rm{ThO}_2$ and U(VI) and U(V) oxides using x‐ray absorption spectroscopy at the ...
Johan R. Vegelius, David K. Shuh, Sergei M. Butorin   +2 more
wiley   +1 more source

Electrospun fibrous sorbents for the removal of uranium and americium from aqueous media

Polymer International, EarlyView.
Polymethacrylate‐based electrospun microfibers with tertiary amino functionalities are evaluated as adsorbents for U‐232 and Am‐241 in both simplified and complex (seawater) water matrices, highlighting their ability for efficient actinide removal. Abstract Polymethacrylate‐based electrospun microfibers containing tertiary amino functionalities were ...
Andreas Hadjianastasi, Ioannis Ioannidis, Petri C Papaphilippou, Ioannis Pashalidis, Theodora Krasia‐Christoforou   +4 more
wiley   +1 more source

Acid Resistant and Highly Silver Selective Membranes Based on Charged Nanoporous 2D‐Materials

Small, EarlyView.
In this work, new membranes based on charged & nanoporous nanosheets with unprecedented selectivity to silver versus a wide range of other metallic ions are reported. Furthermore, a demonstrated and lead specific intralamellar lead pathway is demonstrated. A potential applicability for ubiquitous silver in WEEE is validated.
Sarah M. Chevrier, Thibault Rosier, Bo Han, Lina Cherni, Fabien L. Olivier, Hélène Isnard, Jean‐Christophe P. Gabriel   +6 more
wiley   +1 more source

Yields of rare earth element isotopes in the fission of actinide nuclei [PDF]

Ядерна фізика та енергетика
The paper presents the results of studying the yields of rare earth element (REE) isotopes in the fission of heavy, particularly actinide, nuclei. Mass spectra of REE isotopes (samarium, dysprosium, holmium, ytterbium) were obtained for various fission ...
V. T. Maslyuk, P. S. Derechkei, Z. M. Bihan, P. P. Puha, N. I. Svatiuk, M. S. Liashov   +5 more
doaj   +1 more source

An ‘Empty’ [Fe16] Cage and its Transformation into [Fe17] and [Fe30]

Small, EarlyView.
Polymetallic clusters of FeIII constructed without organic bridging ligands are an emerging class of molecules with structures akin to iron oxide minerals, possessing large spin ground states and/or displaying spin frustration effects. All previous examples, [Fe8], [Fe17], [Fe30] and [Fe34], have been isolated from pyridine or analogous heterocyclic ...
Annabel J. MacGregor, Lucinda R. B. Wilson, Gary S. Nichol, Marc Ubach I Cervera, David Gracia, Zhonghao Chang, Victorino Franco, Scott J. Dalgarno, Lukas B. Woodcock, Stergios Piligkos, Marco Evangelisti, Jürgen Schnack, Euan K. Brechin   +12 more
wiley   +1 more source

Quantification of Plutonium and Americium in Environmental Matrices Using Accelerator Mass Spectrometry

Atoms
This study focused on the measurement of anthropogenic radionuclides such as americium (Am) and plutonium (Pu) in environmental samples. Plutonium isotopes, particularly Pu239, Pu240, and Pu241, originated from nuclear weapons testing, nuclear power ...
Elena Moroianu, Iuliana Stanciu, Doru Pacesila, Andreea Dima, Oana Gaza, Daniel Vasile Mosu   +5 more
doaj   +1 more source

A Review of the Impact of Radiation Damage on the Mechanical Properties of Borosilicate Glasses

International Journal of Ceramic Engineering &Science, Volume 8, Issue 6, November 2026.
Under irradiation, borosilicate glasses are modified at the atomic scale, including the formation of undercoordinated ions, that lead to changes in macroscopic properties. Decades of research have illuminated many aspects of the effects of radiation damage, but the complexity of these glasses leaves several unanswered questions.
Blas Pedro Uberuaga, Christopher Matthews, David A. Andersson   +2 more
wiley   +1 more source

Concentrations of heavy metals in bottom sediments of the Yenisei river near Krasnoyarsk

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the study is determined by the necessity to obtain information on concentrations of chemical elements in sediments of the Yenisei River under impacts of continuous human activity.
Dmitry Dementyev, Aleksander Bolsunovsky, Roman Borisov, Elena Trofimova   +3 more
doaj   +2 more sources