Ion dynamics in Sodium and Potassium Cobalt Dioxides

DOI

We found that muSR detects Li-diffusion in LixCoO2, LiNiO2, Lix(NiCoMn)O2 and LiFePO4 through a dynamic behavior of nuclear field relaxation. Very recently, we have also found that Na- and K-diffusion are successfully detected by muSR in NaxCoO2 (0.5<x<0.75) and K0.67CoO2, despite the mass difference between Li, Na, K and muon. This is because, since muon is identified as an ideal point charge, muon is located at the vicinity of oxygen anions so as to make a stable mu-O bond. However, in order to complete the muSR work on Na- and K-diffusion and compare the muSR result with that of the past electrochemical measurements, we wish to request a continuation experiment on NaxCoO2 (x<0.5) and KxCoO2 (0.5<=x<0.67). Particularly, since there are neither K-NMR nor electrochemical studies on K-diffusion in KxCoO2, the proposed experiment will provide a unique insight on ion-diffusion in solids.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24089646
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24089646
Provenance
Creator Professor Martin Mansson; Dr Masashi Harada; Dr Jun Sugiyama; Dr Hiroshi Nozaki; Mr Jay Rainey; Dr Izumi Umegaki
Publisher ISIS Neutron and Muon Source
Publication Year 2015
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2012-10-15T10:26:26Z
Temporal Coverage End 2012-10-22T08:12:46Z