Near-Ultraviolet-Induced Narrow-Band Emission Phosphors Eu3+-Activated YCa4O(BO3)3 for Backlight-Display and White Light-Emitting Diodes来源：ACS PublicationsDeveloping red emission materials with high efficiency, good thermal stability, and high color purity remains a challenge for phosphor-converted light-emitting diodes (LEDs) and backlight displays. Herein, Eu3+-doped YCa4O(BO3)3 (YCOB) phosphors with narrow-band red light emission were designed to meet simultaneously the above targets. All samples have strong red emission with high color purity under near-ultraviolet (NUV) excitation. The te...
Release time:
2025
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Unraveling the Extraction and Complexation Trends of Rare-Earth Elements with a Nitrilotriacetamide Ligand 来源：ACS PublicationsThe nitrilotriacetamide n-octyl derivative ligand (NTAamide(n-Oct)) is promising for minor actinide/lanthanide separation, yet periodic trends in its extraction and complexation across the lanthanide series remained unclear. This study systematically investigated its behavior with trivalent rare-earth ions (Ln3+, Y3+, and Sc3+) using solvent extraction, 1H NMR titration, UV–vis spectrophotometric titration, microcalorimetric titration, single-crystal X-ray diffract...
Release time:
2025
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Rare-Earth-Modified Magnesium Aluminate Spinel-Supported PtSn Nanoparticles for Propane Dehydrogenation 来源：ACS PublicationsPropane dehydrogenation (PDH) is a crucial petrochemical process for propylene production, driven by the high demand for plastics and chemical feedstocks. Although alumina is a common industrial catalyst support, its acidic sites induce strong adsorption of dehydrogenated products (propylene), promoting undesirable cracking and coke formation. To address this issue, rare-earth-modified magnesium aluminate spinel (MAS) supports were synthesized via a urea-assisted hydr...
Release time:
2025
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Magnetic and Magnetocaloric Properties of YbVO3 Single Crystals Experiments and DFT Calculations 来源：ACS PublicationsIn this paper, we mainly focus on the magnetic and magnetocaloric properties of YbVO3 single crystals grown by the floating-zone method. The crystals present several phase transitions close to 104, 65, and 20 K involving mainly the vanadium sublattice. Particularly, the complex electronic and magnetic structures of YbVO3 result in interesting thermal effects over a wide range of temperatures including a large inverse magnetocaloric effect close to 60 K. In fact, the maximum ...
Release time:
2025
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