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...
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2026
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09
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来源：ACS PublicationsMixed valency in compounds containing rare-earth elements can lead to intriguing properties, such as complex magnetism, unique charge transport, and superconductivity. Zintl A14MPn11 (14–1–11) compounds with rare-earth elements exhibit mixed or intermediate valence at the A cation sites, which affects their magnetic and transport properties. In this study, we report on the valence state of Eu cations and the magnetic properties of 14–1–11 Zintl arsenides, Eu14MAs11 (M = Mg, Zn, Cd). 151Eu Mössbauer spectroscopic analysis indicates the presence of intrinsic Eu2+ and Eu3+ cat...
Release time:
2026
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09
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来源：ACS PublicationsEfficient and green separation of rare earth elements (REE) remains a critical challenge, with conventional solvent extraction relying heavily on toxic organic solvents. Herein, three biomimetic peptides (NF-H1, NF-H2, and NF-H3) integrating the Nap-FF hydrophobic assembly motif with EF-hand-derived REE-recognition sequences were designed for fully aqueous REE separation. The peptides form stable, preassembled β-sheet scaffolds via Nap-FF-mediated hydrophobic interactions and intermolecular hydrogen bonding, within which specific coordination of RE3+ with EF-hand side-chain ...
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2026
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来源：ACS PublicationsRare-earth activation in oxide thin films is often optimized empirically, although excitation-dependent upconversion (UC) is ultimately constrained by the near-surface energetic landscape and defect-mediated screening. Here, we identify a quantitative correlation that links defect chemistry and surface electrostatics to UC saturation kinetics in BaTiO3-based thin films. By combining XPS (high-binding-energy O 1s fraction and valence-band offsets), Kelvin probe force microscopy (contact potential difference and work function), Raman-Fano analysis (vibronic asymmetry), and exc...
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2026
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