Superionic conduit of alkaline earth metals confined by two-dimensional boron–carbon layers

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(5)

Published: Feb. 3, 2025

Superionic conductors feature fast super-ion diffusion in the solid-state framework, making them ideal materials for safe, high-performing electrolytes. It is, therefore, hot pursuit of seeking electrolyte with high energy density and flexible operation conditions. Here, we verified a class two-dimensional superionic conduction A(BC)2, which A are alkaline earth metals such as Be, Mg, Ca, boron–carbon (BC) form graphene-like layers. Our first-principles molecular dynamics simulation, boosted by high-accuracy machine-leaning potentials, shows that metal becomes super-ions under high-temperature conditions, moving freely between BC Differences conduit lead to Be(BC)2 driven vacancy mechanism. In contrast, Mg(BC)2 Ca(BC)2 is jointly both cooperative mechanisms. We demonstrate transition temperature controlled deficiency mobile super-ions, tuning from 1300 1600 K, up 2.5% cation defects. With superior thermal stability, these compounds promising ultrahigh heat resistivity capable operating environments deep drills aerospace devices.

Language: Английский

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Overview of Recent Advances in Rare-Earth High-Entropy Oxides as Multifunctional Materials for Next-Gen Technology Applications

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1082 - 1082

Published: Feb. 27, 2025

Rare-earth high-entropy oxides are a new promising class of multifunctional materials characterized by their ability to stabilize complex, multi-cationic compositions into single-phase structures through configurational entropy. This feature enables fine-tuning structural properties such as oxygen vacancies, lattice distortions, and defect chemistry, making them for advanced technological applications. While initial research primarily focused on catalytic performance in energy environmental applications, recent demonstrated potential optoelectronics, photoluminescent materials, aerospace technologies. Progress synthesis techniques has provided control over particle morphology, composition, engineering, enhancing electronic, thermal, mechanical properties. exhibit tunable bandgaps, exceptional thermal stability, superior resistance phase degradation, which positions next-generation materials. Despite these advances, challenges remain scaling up production, optimizing specific understanding the fundamental mechanisms governing multifunctionality. review provides comprehensive analysis developments rare-earth relatively still underrated material future.

Language: Английский

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Constructing dual-ionic channels to enhance the cycle stability of solid-state zinc-air batteries

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 115, P. 115987 - 115987

Published: Feb. 28, 2025

Language: Английский

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Innovative Multiphase Composites of Transition Metal Oxides for Long-Term Stability and High Energy Density in Storage Devices

Materials Today Sustainability, Journal Year: 2025, Volume and Issue: unknown, P. 101099 - 101099

Published: March 1, 2025

Language: Английский

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High entropy materials as electrode materials for supercapacitors: A review

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180153 - 180153

Published: March 1, 2025

Language: Английский

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Comparative performance analysis of nanostructured metal oxides as cathode in solid state magnesium battery

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114458 - 114458

Published: April 1, 2025

Language: Английский

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Recent advancements in high-performance and durable electrodes materials for magnesium-ion batteries

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 538, P. 216702 - 216702

Published: April 21, 2025

Language: Английский

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