Atomic Insights into Ti Doping on the Stability Enhancement of Truncated Octahedron LiMn₂O₄ Nanoparticles.

ABSTRACT: Ti-doped truncated octahedron LiTi_xMn_2-xO₄ nanocomposites were synthesized through a facile hydrothermal treatment and calcination process. By using spherical aberration-corrected scanning transmission electron microscopy (Cs-STEM), the effects of Ti-doping on the structure evolution and stability enhancement of LiMn₂O₄ are revealed. It is found that truncated octahedrons are easily formed in Ti doping LiMn₂O₄ material. Structural characterizations reveal that most of the Ti⁴⁺ ions are composed into the spinel to form a more stable spinel LiTi_xMn_2-xO₄ phase framework in bulk. However, a portion of Ti⁴⁺ ions occupy 8a sites around th

SUBMITTER: Xu W 

PROVIDER: S-EPMC7922770 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature