来源：ACS PublicationsThe recovery of rare earth elements (REEs) from REE-bearing heavy mineral tailings of the Manisa–Sart (Türkiye) placer deposit─with an REE-bearing phase consistent with a monazite-group phosphate host, supported by SEM–EDS microanalysis and bulk geochemical evidence─was investigated via an integrated alkali roasting–reductive acid leaching route. The effects of roasting temperature, NaOH stoichiometry, acid type and concentration, reducing agent addition, and the heating method (conventional vs microwave) on REE extraction efficiency were systematically evaluated. Roast...
Release time:
2026
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来源：ACS PublicationsChloride-induced film breakdown critically limits the application of rare-earth-containing magnesium alloys, yet the concentration-dependent transition from passivation to localized corrosion remains insufficiently understood. Here, the corrosion behavior of an as-cast Mg-9Gd-3Y-0.6Zn-0.5Zr alloy in 0–5.0 wt % NaCl solutions was investigated using quasi-in situ SEM, SKPFM, cross-sectional SEM/EDS, XPS, electrochemical testing, and first-principles calculations. Increasing NaCl concentration accelerated corrosion, with the icorr rising from 33.57 μA cm–2 in pure water to 1156...
Release time:
2026
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06
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来源：ACS PublicationsOur knowledge of water bonding on metal surfaces is ruled by the coexistence of covalent and electrostatic nature in water–metal interactions, which leads to the well-known, preferred flat geometry on transition metal surfaces. Using density functional theory (DFT) calculations, herein we have shown that this picture has to be modified for water bonding on Sc(0001), Y(0001), and La(0001), where upright water orientation has been surprisingly found to preferentially coexist with the flat geometry on the rare-earth metal surfaces. Our investigations have proved that both water...
Release time:
2026
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来源：ACS PublicationsWith the escalating complexity of composite contamination in industrial wastewater, exploring high-efficiency and robust photocatalysts has become a research hotspot in environmental remediation. Herein, five isostructural rare-earth metal–organic frameworks (RE-MOFs, LCUH-128–132) were solvothermally assembled via the coordination of anthracene chromophore ligand 9,10-anthracenedicarboxylic acid (H2ADC) with five rare-earth metal ions (RE = Y, Eu, Gd, Tb, Dy). Remarkably, LCUH-129 (Eu-MOF) presents outstanding multifunctional photocatalytic activity without any additional p...
Release time:
2026
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