来源：ACS PublicationsMagnetic separations present a promising approach for the recovery of rare earth (RE) elements from mixtures, particularly when coupled with precipitation techniques that enhance process efficiency and selectivity. However, the magnetic properties of RE materials typically encountered in the separations industry are not well characterized. Here, we synthesized a series of RE materials, combining four REs─praseodymium (Pr), neodymium (Nd), terbium (Tb), and dysprosium (Dy)─with three precipitating agents─hydroxide, oxalate, and dibutyl phosphate. All materials showed typical ...
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2026
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来源：ACS PublicationsThe electronegativities of the rare-earth elements are proposed; these use average “relative valence electron binding energies” (ReVEBE) that are deduced from experimental spectroscopic data listed in the NIST Atomic Spectra Database. According to this concept, only the lowest-lying levels of the valence electron configurations are considered. These electronegativities were obtained as estimated binding energies based on a modified concept by Rahm, Zeng, and Hoffmann of ground-state average valence electron binding energies for the main group and transition metal elements. T...
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2026
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Crystal Growth of Quaternary RE2EuSi2S8 (RE = Ce–Nd, Sm, Gd, Tb) Using Flux-Assisted Boron Chalcogen Mixture (BCM) Method: Investigation of Magnetic and Luminescence Properties 来源：ACS PublicationsA series of quaternary rare-earth containing thiosilicates with the general formula RE2EuSi2S8 (RE = Ce–Nd, Sm, Gd, Tb) has been synthesized via the flux-assisted boron chalcogen mixture (BCM) crystal growth method. High-quality single crystals were obtained, and their crystal structures were determined by single-crystal X-ray diffraction. The RE2EuSi2S8 series crystallizes in the trigonal system, ado...
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2026
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来源：ACS PublicationsOxygen vacancies strongly influence the electronic properties of rare-earth nickelates, enabling the control of their metal–insulator transition (MIT). Here we adopt density functional theory (DFT), DFT + U, and dynamical mean field theory (DMFT) combined with DFT to study the vacancy-induced MIT and diffusion in LaNiO3. A symmetry-adapted configurational ensemble approach allows the systematic treatment of distinct vacancy geometries. We find that triple vacancy structures in LaNiO2.5 can yield either metallic or insulating states depending on the local Ni–O coordination, i...
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2026
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