来源：ACS PublicationsIn solid-state compounds, the valence of europium can sometimes be mixed, which is especially favored in structures with several positions for the europium atoms. In this work, we study the Eu-based intermetallic noncentrosymmetric system Eu11–xHg54+x, which has 65 atoms per unit cell and 4 distinct crystallographic positions for europium and 14 positions for mercury. Our detailed analysis of the magnetism of large single crystals suggests that europium in Eu11–xHg54+x might be present in two valence states, resulting in a fragile magnetic ground state. Due to the cage-like ...
Release time:
2025
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Unlocking the Potential of Peroxymonosulfate Activation: Rare-Earth-Modulated Cobalt Species in N-Doped Carbon Catalyst for Efficient Organic Pollutant Degradation来源：ACS PublicationsThe development of efficient catalysts for peroxymonosulfate (PMS) activation remains a pivotal yet formidable challenge in advanced oxidation processes (AOPs). While Co-based catalysts are promising, their performance is often hindered by significant bottlenecks. Herein, we report a strategy of electronic structure engineering via rare-earth europium (Eu) doping to enhance the catalytic performance of Co-N-C subst...
Release time:
2025
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来源：ACS PublicationsAchieving precise stereocontrol in macromolecular synthesis under mild conditions remains a fundamental challenge in polymer chemistry. Herein, an efficient and highly syndiospecific polymerization of methyl methacrylate (MMA) is realized by using Lewis pairs composed of rare-earth (RE) aryloxides and phosphines, affording syndiotactic PMMA (up to 90.3% rr at 25 °C) with well-controlled molecular weight (near-quantitative initial efficiency, Mn up to 21.0 × 104 g/mol). This methodology exhibits broad applicability, extending to diverse methacrylate monomers such as...
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2025
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Rare Earth Element-Induced Condensation of the Block V of the Repeats-in-Toxin Domain from CyaA from Bordetella pertussis for Separations 来源：ACS PublicationsRare earth elements (REEs) are critical for the development of a range of new technologies. However, the current industrial separation processes of these metals from natural sources, recycled materials, and industrial effluents involve the large consumption of organic solvents, resulting in a sizable environmental footprint. We aim to exploit the high affinity of the block V peptide of the repeats-in-toxin (RTX) domain of the adenylate cyc...
Release time:
2025
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