Fast lithium ion diffusion in the ternary layered nitridometalate LiNiN
| Autor: | Alexandra G. Gordon, Mark Allan, Zlatka Stoeva, Jeremy J. Titman, Duncan H. Gregory, Gary B. Hix, Ruben Gomez |
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| Rok vydání: | 2004 |
| Předmět: |
Diffusion
Isotopes of lithium chemistry.chemical_element General Medicine General Chemistry Biochemistry Catalysis law.invention Ion Metal SQUID Crystallography Colloid and Surface Chemistry chemistry Diffusion process law visual_art visual_art.visual_art_medium Fast ion conductor Ionic conductivity Lithium Ternary operation Nuclear chemistry |
| Zdroj: | Journal of the American Chemical Society. 126(13) |
| ISSN: | 0002-7863 |
| Popis: | The structure, Li+ diffusion dynamics, and magnetic properties of the layered nitridonickelate(II), LiNiN, have been investigated by powder X-ray diffraction, 7Li solid-state NMR, and SQUID magnetometry and compared and contrasted with those of the Li+ fast ion conductor, Li3N. The replacement of Li+ by Ni2+ with concomitant generation of Li+ vacancies has profound effects on ionic diffusion and electronic properties. The nitridonickelate, akin to its binary parent, displays rapid Li+ ion diffusion but, by contrast, the diffusion process is confined only to the Li−N planes. Further, replacement of Li by Ni leads to a transition from semiconducting to metallic behavior, likely mediated through the creation of infinite, 1D Ni−N chains of increased covalency. |
| Databáze: | OpenAIRE |
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