Good reproductive preparation method of Li-intercalated hexagonal boron nitride and transmission electron microscopy - Electron energy loss spectroscopy analysis

A. Sumiyoshi, H. Hyodo, Y. Sato, M. Terauchi, K. Kimura

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    A Li-intercalated hexagonal boron nitride (Li-h-BNIC) phase was synthesized using a highly reproducible method that involves annealing an Li3N and h-BN mixture at 1220 K. Powder X-ray diffraction, electrical conductivity measurements, transmission electron microscopy (TEM) and electron energy loss spectroscopy were performed. The stacking of BN atomic layers in the Li-h-BNIC phase is not the same as the two-layer stacking periodicity of h-BN. TEM observation suggests the existence of incommensurate periodicity along the intralayer direction. From the low-loss and core-loss spectra, the Li-h-BNIC phase is not metal as predicted by the first-principle calculations. Satellite peaks of 1 s to π∗transition in the B K-edge core-loss spectrum indicate the presence of N atom vacancies modified by O atoms in the h-BN atomic layer.

    Original languageEnglish
    Article number5126
    Pages (from-to)68-72
    Number of pages5
    JournalSolid State Sciences
    Volume47
    DOIs
    Publication statusPublished - 2015 Nov 5

    Keywords

    • Alkali metal intercalation
    • Electrical conductivity
    • Electron energy loss spectroscopy
    • Hexagonal boron nitride
    • Transmission electron microscopy
    • X-ray diffraction

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Science(all)
    • Condensed Matter Physics

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