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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06
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25
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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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06
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来源：ACS PublicationsThe proliferation of 5G/6G communication and millimeter-wave devices has intensified electromagnetic interference, driving demand for thin, broadband microwave absorbers. We report the structure, intrinsic magnetism, and high-frequency electromagnetic response of easy-plane Nd2.7Zr0.3Fe28Ti and its interstitial nitride. Nitrogenation significantly elevates Tc and Ms via the magneto-volume effect (MVE), while the chemical bonding effect (CBE) modulates the crystal field around Nd and markedly enhances the in-plane anisotropy field. The concurrent increase in both anisotropy f...
Release time:
2026
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06
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