来源：ACS PublicationsSolid-state sodium batteries operating at ambient temperatures are promising alternatives to liquid electrolyte batteries, offering improved safety and higher energy density. Among solid-state electrolytes, the ceramic Na-conducting electrolyte Na5YSi4O12 (N5) stands out due to its high Na-ion conductivity, wide electrochemical stability window, and compatibility with high-energy-density cathodes. However, achieving high ionic conductivity at room temperature remains a challenge. In this study, the effect of La doping on the electrochemical properties of an N5 ceramic electr...
Release time:
2025
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07
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02
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来源：ACS PublicationsThe oxidation state +2 is of interest in rare-earth chemistry since it allows these conventionally redox-inactive metals to be used as reducing agents. However, the divalent oxidation state is difficult to form for most rare-earth elements, and the ensuing compounds are often unstable. Here, we describe an approach to rare-earth reduction chemistry that circumvents the divalent oxidation state by using compounds of trivalent rare earths that store reducing electrons on the dinitrogen ligand [N2]2–, akin to “masked” divalent reactivity. Thus, the dinitrogen complexes [(C...
Release time:
2025
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07
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01
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来源：ACS PulicationsGadolinium-based metal–organic frameworks (MOFs) are attractive due to their potential magnetic applications such as magnetic refrigeration, magnetic resonance imaging, and quantum information science. In this work, Gd3+-based MOFs containing binuclear metal nodes and fluorinated hexaclusters have been prepared exhibiting paramagnetic behavior, and their crystal structures were obtained. A two-dimensional MOF (Gd-BCA-2D) having the sql topology was prepared by the hydrothermal reaction of Gd3+ and bicinchoninic acid (BCA). A fluoro-bridged hexacluster-based MOF (Gd-BCA-3D) ha...
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2025
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06
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来源：ACS PublicationsImproving water retention in sandy soils remains critical for sustainable agriculture, with engineered nanoparticles emerging as potential amendments. This study presents a state-of-the-art pedostructure approach to investigate how negatively charged cerium oxide nanoparticles (CeO2–NPs) affect water holding capacity in silty loamy sand soil (83% sand, 13% silt, 4% clay) under saline and nonsaline conditions. Three objectives were addressed: (1) measuring the impact of different CeO2–NP concentrations on WHC and pore-scale water distribution, (2) assessing the effects of sal...
Release time:
2025
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06
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27
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