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Universal three-dimensional superionic diffusion template: B56
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DOI：10.1016/j.mtener.2025.102025.png)
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Abstract
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• B56 can facilitate the diffusion of ions with various valence states, including Li+, Be2+, and Al3+, establishing itself as a universal three-dimensional ionic diffusion template. • B56 exhibits excellent mechanical properties and thermal stability up to 2000K, enabling the diffusion of Li+, Be2+, and Al3+. • Concerted migration is the dominant diffusion mechanism of metal cation ions in B56, and Be2+ ions have three diffusion pathways within the framework. • The superionic behavior can be effectively regulated by precisely controlling the types, distances, covalent or ionic interactions, and introducing crystal lattice defects, thereby reducing the required diffusion temperature and optimizing the ion diffusion performance of the B56 framework.
Keywords:
B56
ionic diffusion
metal cations
concerted migration
superionic behavior
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8.6
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2.4K
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1.2W
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