EFFECT OF COBALT SUBSTITUTION ON THE JAHN-TELLER DISTORTION OF THE NANIO2 LAYERED OXIDE

被引：18

作者：

DELMAS, C ^{[1
]}

SAADOUNE, I ^{[1
]}

DORDOR, P ^{[1
]}

机构：

[1] UNIV BORDEAUX 1,ECOLE NATL SUPER CHIM & PHYS BORDEAUX,F-33405 TALENCE,FRANCE

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 244卷

关键词：

D O I：

10.1080/10587259408050127

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

NaNiO2 exhibits a layered structure made of NiO2 slabs between which Na+ ions are inserted in octahedral environment. Trivalent nickel ions in the low spin state (t(2)(6)e(1)) exhibits a Jahn-Teller effect which leads to a distortion of the NiO6 and hence to a macroscopic lattice distortion. The partial substitution of trivalent cobalt for nickel (NaNi1-yCoyO2) allows to suppress the structural distortion for y greater than or equal to 0.22. This behavior results from the competition between the stabilization of Ni3+ ions in distorted environment and the strong stabilization of the isotropic Co3+ ions in octahedral environment.

引用

页码：337 / 342

页数：6

共 14 条

[1]

BONGERS PF, 1966, J SOLID STATE COMMUN, V4, P153

[2] STUDY OF THE NAXCRO2 AND NAXNIO2 SYSTEMS BY ELECTROCHEMICAL DESINTERCALATION [J].

BRACONNIER, JJ ;

DELMAS, C ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1982, 17 (08) :993-1000

[3]

BROUSSELY M, IN PRESS J POWER SOU

[4] RECHARGEABLE LINIO2 CARBON CELLS [J].

DAHN, JR ;

VONSACKEN, U ;

JUZKOW, MW ;

ALJANABY, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (08) :2207-2211

[5] ELECTROCHEMICAL AND PHYSICAL-PROPERTIES OF THE LIXNI1-YCOYO2 PHASES [J].

DELMAS, C ;

SAADOUNE, I .

SOLID STATE IONICS, 1992, 53 (pt 1) :370-375

[6] THE EFFECT OF COBALT ON THE CHEMICAL AND ELECTROCHEMICAL-BEHAVIOR OF THE NICKEL-HYDROXIDE ELECTRODE [J].

DELMAS, C ;

FAURE, C ;

BORTHOMIEU, Y .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1992, 13 (02) :89-96

[7] NICKEL-HYDROXIDE AND DERIVED PHASES OBTAINED BY CHIMIE-DOUCE FROM NANIO2 [J].

DELMAS, C ;

BORTHOMIEU, Y ;

FAURE, C ;

DELAHAYE, A ;

FIGLARZ, M .

SOLID STATE IONICS, 1989, 32-3 :104-111

[8]

DELMAS C, 1992, IN PRESS P MRS SOLID

[9] CHEMICAL SYNTHESIS AND PROPERTIES OF LI-1-DELTA-XNI1+DELTA-O2 AND LI[NI2]O4 [J].

DUTTA, G ;

MANTHIRAM, A ;

GOODENOUGH, JB ;

GRENIER, JC .

JOURNAL OF SOLID STATE CHEMISTRY, 1992, 96 (01) :123-131

[10] ALKALI METAL NICKEL OXIDES OF THE TYPE MNIO2 [J].

DYER, LD ;

BORIE, BS ;

SMITH, GP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1954, 76 (06) :1499-1503

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