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Description:

Potassium–graphite intercalation compounds (K–GICs) have potential applications in potassium-ion batteries. Although previous research has reported solid-state nuclear magnetic resonance (NMR) measurements on K–GICs, the assignment of their 39K NMR spectra remains unclear. In this study, we provide new insights into the 39K NMR spectral assignment for K–GICs and reveal that the state of the intercalated potassium ions varies even for compounds with the same composition.

Rights:

• Creative Commons BY Attribution 4.0 International
  

Keyword: graphite intercalation compound, potassium, solid-state nuclear magnetic resonance

Date published: 2026-08-27

Publisher: Oxford University Press (OUP)

Journal:

• Chemistry Letters (ISSN: 03667022) vol. 55 issue. 9 upag177

Funding:

• JSPS JP25K23614

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1093/chemle/upag177

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Updated at: 2026-10-09 11:30:49 +0900

Published on MDR: 2026-10-09 14:30:59 +0900