X-ray spectroscopy study of lithiated graphite obtained by thermal deposition of lithium

L. L. Lapteva, Yu V. Fedoseeva, P. N. Gevko, D. A. Smirnov, A. V. Gusel’nikov, L. G. Bulusheva, A. V. Okotrub

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

4 Цитирования (Scopus)

Аннотация

X-ray photoelectron spectroscopy (XPS), X-ray emission spectroscopy (XES), and near edge X-ray absorption fine structure (NEXAFS) spectroscopy are used for in situ studies of the electronic structure of lithiated natural graphite produced by thermal deposition of lithium upon graphite in a vacuum. By XPS and NEXAFS spectroscopy it is found that lithium vapor thermal deposition results in the formation of a lithiated graphite surface layer and a change in its electronic structure. Based on the quantum chemical simulation of the experimental СKα XES spectrum of lithiated graphite, it is found that lithium atoms are located mostly on the edges of graphite crystallites. Atomic force microscopy reveals that the size of natural graphite flakes varies from 50 nm to 200 nm.

Язык оригиналаанглийский
Страницы (с-по)1173-1179
Число страниц7
ЖурналJournal of Structural Chemistry
Том58
Номер выпуска6
DOI
СостояниеОпубликовано - 1 ноя 2017

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