Electronic absorption spectra of lanthanides in a molten chloride

Electrochemical behaviour of dysprosium(III) in LiF–CaF2 on Mo, Ni and Cu electrodes

“…Furthermore, they have evaluated, on Fe and Ni electrodes, the equilibrium potential of Fe-Dy and Ni-Dy compounds and calculated their thermodynamic properties. Always in chlorides salts, a spectroscopic study of some trivalent lanthanides, carried out by Fujii et al [16], evidenced the dependence of the DyCl 3À 6 complex geometry on temperature and nature of the salts. Zeng et al [15] performed a similar study in Li2CO À 3 K 2 CO 3 mixture at 377°C on Ni electrode.…”

Morphology controlled synthesis of Sm doped ZnO nanostructures for photodegradation studies of Acid Blue 113 under UV-A light

“…The positions of these bands are predicted theoretically and experimentally by several authors [36]. It has been reported that the positions of the zinc interstitials and zinc vacancies are located at 0.22 and 3.06 eV below the conduction band, respectively [31].…”

Temperature dependence of laser-induced fluorescence of Tb3+ in molten LiCl–KCl eutectic

“…It is worthwhile to discuss the change of the coordination circumstance of Tb 3þ in molten LiCl-KCl eutectic. Fujii et al [7,8] and Chrissanthopoulos et al [25] have reported that the octahedral symmetry of LnCl 3À 6 (Ln = Nd, Dy, Ho, Er, Sm) was distorted with increasing temperature. In their works, the overall increase of the molar absorptivity is attributed to the increasing distortions of octahedral symmetry of LnCl 3À 6 , which implies lowering of the coordination symmetry and thus enhancement of the oscillator strengths of the hypersensitive transitions.…”

“…Chloride-based molten salts are attractive reaction media in this process, thus, it is of interest to investigate the chemical characteristics of fission products, including lanthanides and actinides (in this manuscript, referred to as ''LAs''), in high temperature molten salts. For the better understanding of electrochemical and thermodynamic properties of LAs dissolved in molten salts, a variety of physicochemical techniques have been adopted [2][3][4][5][6][7][8][9].…”

“…The electronic absorption spectroscopy (EAS) in the ultraviolet-visible wavelength region was taken up for studying the chemical speciation of LAs for identifying their oxidation states in high temperature molten salts [6][7][8][9]. The change of coordination circumstance was also investigated by measuring the absorption spectra of the hypersensitive transitions of lanthanides [8].…”