This chapter discusses the diffusional dynamics in intercalation compounds of graphite with alkali metals. These form two classes: stage 1 compounds like C6Li, and stage 2 compounds like C24Rb. HNO3 has also been intercalated in graphite and studied by QENS. All these systems exhibit interesting transitions between commensurate and incommensurate structures which influences the diffusivity. A two-dimensional Chudley–Elliott model is applied. A few studies in the literature deal with ionic compounds with channels or layers. An example is the Chevrel phase Ni2Mo6S8: the Q dependence of the linewidths establishes fast long-range motion of the intercalated Ni2+ ions.
Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
If you think you should have access to this title, please contact your librarian.