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


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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.

Sobre autores

L. Lapteva

Nikolaev Institute of Inorganic Chemistry, Siberian Branch; Novosibirsk National Research State University

Autor responsável pela correspondência
Email: lapteva.l.l@yandex.ru
Rússia, Novosibirsk; Novosibirsk

Yu. Fedoseeva

Nikolaev Institute of Inorganic Chemistry, Siberian Branch; Novosibirsk National Research State University

Email: lapteva.l.l@yandex.ru
Rússia, Novosibirsk; Novosibirsk

P. Gevko

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Email: lapteva.l.l@yandex.ru
Rússia, Novosibirsk

D. Smirnov

Institute of Solid State Physics

Email: lapteva.l.l@yandex.ru
Alemanha, Dresden

A. Gusel’nikov

Nikolaev Institute of Inorganic Chemistry, Siberian Branch

Email: lapteva.l.l@yandex.ru
Rússia, Novosibirsk

L. Bulusheva

Nikolaev Institute of Inorganic Chemistry, Siberian Branch; Novosibirsk National Research State University

Email: lapteva.l.l@yandex.ru
Rússia, Novosibirsk; Novosibirsk

A. Okotrub

Nikolaev Institute of Inorganic Chemistry, Siberian Branch; Novosibirsk National Research State University

Email: lapteva.l.l@yandex.ru
Rússia, Novosibirsk; Novosibirsk

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