来源：ACS PublicationsIron (Fe)-rich tailings generated during rare earth element (REE) processing constitute a strategically important secondary resource. However, their utilization is hindered by the refractory nature of REE-bearing mineral phases and the environmental footprint of conventional mineral acid leaching. This study presents a sustainable hydrometallurgical strategy employing an in situ Brønsted acidic medium generated from aluminum nitrate nonahydrate (Al(NO3)3·9H2O) and sodium chloride (NaCl) for the recovery of REEs and Fe from Fe-rich tailings containing 48 wt % Fe and...
Release time:
2026
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09
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07
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来源：ACS PublicationsHigh-entropy rare-earth oxides (HE-REOs) offer a broad compositional space for tuning defect chemistry, lattice distortion, and local atomic environments, yet their controlled synthesis as monodisperse and structurally well-defined nanostructures remains challenging. Here, we report a colloidal approach for the synthesis of solution-dispersible, single-crystalline HE-REO nanoplatelets. The ultrathin two-dimensional nanoplatelets adopt a trigonal REO lattice that supports homogeneous multication incorporation across ternary to denary HE-REO compositions, and a simultaneous mu...
Release time:
2026
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09
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07
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来源：ACS PublicationsSeparation of Rare Earth Elements (REEs) remains an open challenge for their closely related coordination chemistry and hydration. Neodymium (Nd) and yttrium (Y) form an exemplary pair for this open problem, since Nd is a priority target for recovery from end-of-life magnets while yttrium closely mimics the ionic radius and coordination behavior of heavy rare earth elements, which are common cocontaminants of Nd. Membrane-based separation has been recognized as an efficient and eco-friendly alternative to the conventional solvent extraction procedures. In this context, the d...
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2026
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09
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The Synergistic Impact of Lanthanide-Doped Nickel Iron Sulphides (NiFeSs) Synthesized by a Hydrothermal Method for Effective Water and Urea Electrolysis in Anion Exchange Membranes来源：ACS PublicationsOne of the major barriers to sustainable hydrogen production is the development of highly efficient, economically viable electrocatalysts for alkaline and urea water splitting. In this work, we report the synthesis of lanthanum-modified nickel–iron–sulfide (Ni–Fe–S) nanostructures via the hydrothermal method. X-ray diffraction analysis reveals the formation of a multiphase heterostructure consistin...
Release time:
2026
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09
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