Journal
INORGANIC CHEMISTRY
Volume 50, Issue 14, Pages 6649-6655Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic200534x
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Funding
- ANR, OCTE
- CEA
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A new ordered (Li/Ag)CoO2 layered compound with an unusual oxygen packing combining rock salt and delafossite layers is obtained during the (Li+, Na+)/Ag+ ionic exchange from the OP4-(Li/Na)CoO2 precursor. This compound is actually an intermediate step to the final D4-AgCoO2 delafossite and can be isolated thanks to the kinetics difference between the Li+/Ag+ and Na+/Ag+ exchange processes. It crystallizes in the P6(3)/mmc space group with cell parameters a(hex.) = 2.848(3) angstrom and c(hex.) = 21.607(7) angstrom. The details of the structure as well as its thermal stability and transport properties are presented and discussed.
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