X-ray and neutron diffraction, 57Fe Mossbauer spectroscopy and X-ray absorption spectroscopy studies of iron-substituted lithium cobaltate

被引：8

作者：

Alcántara, R

Lavela, P

Vicente, CP

Tirado, JL

Olivier-Fourcade, J

Jumas, JC

机构：

[1] Univ Cordoba, Lab Quim Inorgan, E-14071 Cordoba, Spain

[2] Univ Montpellier 2, Lab Agregats Mol & Mat Inorgan, UPR ESA 5072, F-34095 Montpellier, France

来源：

SOLID STATE COMMUNICATIONS | 2000年 / 115卷 / 01期

关键词：

chemical synthesis; crystal structure and symmetry; X-ray scattering; order-disorder effects; neutron scattering;

D O I：

10.1016/S0038-1098(00)00138-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Powdered solids with LiFe0.1Co0.9O2, LiFe0.2Co0.8O2 and LiFe0.2Co0.6Ni0.2O2 compositions have been prepared by ceramic procedures in the presence of excess lithium. The combined refinement of X-ray and neutron diffraction data reveals that cation substitution takes place in the octahedral sites with an almost complete absence of tetrahedrally coordinated iron. The Fe-57 Mossbauer spectra of these solids agree with this model and show a non-random distribution of Fe and Co ions in octahedral sites. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1 / 6

页数：6

共 20 条

[1] X-ray diffraction, EPR, and 6Li and 27Al MAS NMR study of LiAlO2-LiCoO2 solid solutions
Alcantara, R
Lavela, P
Relano, PL
Tirado, JL
Zhecheva, E
Stoyanova, R
[J]. INORGANIC CHEMISTRY, 1998, 37 (02) : 264 - 269
[2] X-ray diffraction, 57Fe Mossbauer and step potential electrochemical spectroscopy study of LiFeyCo1-yO2 compounds
Alcántara, R
Jumas, JC
Lavela, P
Olivier-Fourcade, J
Pérez-Vicente, C
Tirado, JL
[J]. JOURNAL OF POWER SOURCES, 1999, 81 : 547 - 553
[3] CHARACTERIZATION AND CATHODE PERFORMANCE OF LI-1-XNI1+XO2 PREPARED WITH THE EXCESS LITHIUM METHOD
ARAI, H
OKADA, S
OHTSUKA, H
ICHIMURA, M
YAMAKI, J
[J]. SOLID STATE IONICS, 1995, 80 (3-4) : 261 - 269
[4] BERAR JF, 1990, IUC SAT M POWD DIFFR
[5] OXYGEN 1S X-RAY-ABSORPTION EDGES OF TRANSITION-METAL OXIDES
DEGROOT, FMF
GRIONI, M
FUGGLE, JC
GHIJSEN, J
SAWATZKY, GA
PETERSEN, H
[J]. PHYSICAL REVIEW B, 1989, 40 (08): : 5715 - 5723
[6] An overview of the Li(Ni,M)O2 systems:: syntheses, structures and properties
Delmas, C
Ménétrier, M
Croguennec, L
Saadoune, I
Rougier, A
Pouillerie, C
Prado, G
Grüne, M
Fournès, L
[J]. ELECTROCHIMICA ACTA, 1999, 45 (1-2) : 243 - 253
[7] STUDY OF THE K EDGES OF 3D TRANSITION-METALS IN PURE AND OXIDE FORM BY X-RAY-ABSORPTION SPECTROSCOPY
GRUNES, LA
[J]. PHYSICAL REVIEW B, 1983, 27 (04): : 2111 - 2131
[8] A LEAST SQUARE FIT PROGRAM
KUNDIG, W
[J]. NUCLEAR INSTRUMENTS & METHODS, 1969, 75 (02): : 336 - &
[9] CATION DISTRIBUTION AND CHEMICAL DEINTERCALATION OF LI-1-XNI1+XO2
MORALES, J
PEREZVICENTE, C
TIRADO, JL
[J]. MATERIALS RESEARCH BULLETIN, 1990, 25 (05) : 623 - 630
[10] Nagaura T., 1990, PROG BATTERIES SOLAR, V9, P20

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