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- Title
The Behavior of the Intercalant AlCl<sub>4</sub> Anion during the Formation of Graphite Intercalation Compound: An X‐ray Absorption Fine Structure Study.
- Authors
Greco, Giorgia; Elia, Giuseppe Antonio; Kayser, Yves; Beckhoff, Burkhard; Perestjuk, Marko; Raoux, Simone; Hahn, Rober
- Abstract
This work aims to study the insertion of AlCl4−$\text{AlCl}_{4}^{-}$ anion in the crystalline structure of oriented pyrolytic graphite (PG) at the point of view of the anion itself. The electronic and atomic structures of the anion at different intercalation stages are studied. In particular double‐edge (bicolor) X‐ray absorption spectroscopy at the Al and Cl K‐edges is carried out, highlighting a contraction of the anion bonding at the highest intercalation degree obtained electrochemically (stage 3), while the electronic population changes for both the edges upon cycle.
- Subjects
PYROLYTIC graphite; X-ray absorption; GRAPHITE intercalation compounds; ANIONS; CRYSTAL structure; ELECTRONIC structure; X-ray spectroscopy
- Publication
Physica Status Solidi. A: Applications & Materials Science, 2024, Vol 221, Issue 7, p1
- ISSN
1862-6300
- Publication type
Article
- DOI
10.1002/pssa.202300776