(Li/Ag)CoO2: A New Intergrowth Cobalt Oxide Composed of Rock Salt and Delafossite Layers

被引：16

作者：

Berthelot, R. ^{[1
,2
]}

Pollet, M. ^{[1
]}

Doumerc, J. -P. ^{[1
]}

Delmas, C. ^{[1
,3
]}

机构：

[1] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France

[2] CEA, DRT LITEN, F-38054 Grenoble, France

[3] CNRS, ENSCBP, ICMCB, F-33608 Pessac, France

来源：

INORGANIC CHEMISTRY | 2011年 / 50卷 / 14期

关键词：

NOBLE METAL OXIDES; 1ST EXPERIMENTAL-EVIDENCE; ELECTRONIC-PROPERTIES; CRYSTAL-STRUCTURE; CATHODE MATERIAL; PHASE-DIAGRAM; LICOO2; THERMOPOWER; CHEMISTRY; NAXCOO2;

D O I：

10.1021/ic200534x

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页码：6649 / 6655

页数：7

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