来源：ACS PublicationsRare-earth materials are commonly described as “industrial vitamins” since they are mainly employed as structural or electronic modifiers rather than as direct catalytic centers. This is because their highly shielded 4f electrons prevent them from effectively participating in interfacial charge transfer. In this work, we break this long-standing limitation by engineering atomically dispersed lanthanum (La) on nitrogen-doped carbon (NC), where it is stabilized in a La-N4 coordination environment to form a new material denoted as La-NC. The resulting La-NC electrode functions ...
Release time:
2026
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04
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来源：ACS PublicationsOver the past decade, oxygen-containing rare-earth hydrides (REHOs) have emerged as promising inorganic photochromic materials for passive light-control coatings. However, the photochromic behavior of oxygen-containing lanthanum hydride (LaHO) has remained unexplored. Here, we report the synthesis of LaHO thin films by reactive magnetron sputtering, followed by controlled oxidation and encapsulation with aluminum nitride and oxide layers to improve their stability. The resulting transparent films (average transmittance of 68–72% between 500 and 700 nm) exhibited reversible p...
Release time:
2026
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04
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来源：ACS PublicationsThe synthesis and isolation of crystalline rare-earth (RE) metallocene complexes bearing the cyaphide (CP–) ligand is reported. These species were synthesized through salt metathesis reactions of [RE(Cpttt)2Cl] (Cpttt = 1,2,4-tris(tert-butyl)cyclopentadienyl) with the cyaphide transfer reagent [Mg(DippNacNac)(CP)]2 (DippNacNac = CH{C(CH3)N(Dipp)}2; Dipp = 2,6-di(iso-propyl)phenyl). The ionic radius of the RE ions was found to play a pivotal role in the solution-phase speciation of such compounds, with smaller ions favoring stable monomeric complexes [RE(Cpttt)2(CP)] (RE = Y,...
Release time:
2026
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04
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来源：ACS PublicationsDeveloping environmentally benign luminescent materials with high emission efficiency, recyclability, and dynamically tunable optical properties is crucial for sustainable optical information encryption. However, achieving green synthesis, scalable production, and stimulus-responsive optical tunability simultaneously remains challenging. Herein, Sb-doped rare-earth halide perovskite phosphors are rapidly synthesized via a low-energy aqueous-phase evaporation-crystallization strategy, avoiding organic solvents and corrosive reagents, and enabling gram-scale production. The ob...
Release time:
2026
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04
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