نتایج جستجو برای: cerium nitrate
تعداد نتایج: 36761 فیلتر نتایج به سال:
The cerium oxidation state in novel calixarene-supported cerium(IV) β-diketonate complexes [pt Bu-calix[4](OMe)2(O)2]Ce(acac)2 (1) and [pt Bu-calix[4](OMe)2(O)2]Ce(hfac)2 (2), which are a new class of potential precursors for homogeneous oxidative transformations, has been determined using X-ray photoelectron spectroscopy (XPS). Cerium oxidation states between 3.6 and 3.65 were detected, distin...
We review here the magnetic properties of some strongly correlated electron systems and especially cerium and uranium compounds. The normal Kondo lattice model with a localized S = 1/2 spin can account for the Kondo-magnetism competition observed in cerium or ytterbium systems, while the underscreened Kondo lattice model with a localized S = 1 spin can well account for the ferromagnetism — Kond...
In this paper, various microstructures of Ce2(WO4)3 and Ce10W22O81 were prepared by applying a hydrothermal synthesis, in a ligand-free environment, and in the presence of a dioctyl sodium sulfosuccinate (DSS) surfactant, after which the materials were heat treated at a temperature of 900 °C. Depending on the ratio of cerium ions to sodium tungstate, as well as the reaction pH, two different ce...
We have successfully determined the hitherto unknown sign of the B(4)(4) Stevens crystal-field parameter of the tetragonal heavy-fermion compound CeCu(2)Si(2) using vector q-dependent nonresonant inelastic x-ray scattering experiments at the cerium N(4,5) edge. The observed difference between the two different directions, q∥[100] and q∥[110], is due to the anisotropy of the crystal-field ground...
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