Multi-analytical approach of the influence of sulphate ion on the formation of cerium(III) fluoride nanoparticles in precipitation reaction

Novel Mechanically Assisted Dissolution of Platinum Using Cerium(IV) Oxide

“…The solution sample from the model catalyst shows absorption peaks centered at 223, 240, and 253 nm. The shape of the spectrum and the positions of the absorption peaks are similar to those of the aqueous CeCl 3 solution, 44 which indicates that CeO 2 is reduced with HCl, as shown in eq 1.…”

Explanation for the Multi-Component Scintillation of Cerium Fluoride Through the Equilibrium and Photophysical Investigation of Cerium(III)-Fluoro Complexes

“…The evaluation of the series of 12 spectra (Figure 1), by using Equations (1)–(3), PSEQUAD and MRA (see Section 2.2), unambiguously indicated that four species were responsible for the spectral changes; i.e., the colloidal cerium(III) fluoride behaved spectrophotometrically as a complex in solution, due to its very small size. The precipitation could only be detected (with the rising of the baseline in absorption spectra (Figure 1), as well as the decrease of the luminescence intensity (see later in Figure 2)) at significantly higher fluoride concentrations, due to the formation of larger nanoparticles [30]. Figure 1 also displays the individual spectra of the different Ce(III) species.…”

Self‐limited crystallization‐mediated removal of hydroxyl in glass

“…To provide more evidence about the phase transition process, Raman spectra of glass samples heat‐treated at various temperatures were measured and the results are shown in Figure B. Raman spectra of samples heat‐treated at 700°C show a broad band with the maximum at 488 cm −1 , which can be ascribed to the symmetric stretching vibration (ν 2 vibration) of CeF 3 crystalline phase . By increasing the heat‐treatment temperature, an additional sharp peaks at 457 cm −1 can be observed, which is associated with the F 2g mode of CeO 2 nanocrystals .…”