AN IR SPECTROSCOPIC INVESTIGATION OF COPPER MANGANITE CUXMN3-XO4 (0-LESS-THAN-X-LESS-THAN-1) SPINELS AND THEIR OXIDATION-PRODUCTS

被引：14

作者：

KHARROUBI, M ^{[1
]}

GILLOT, B ^{[1
]}

LEGROS, R ^{[1
]}

METZ, R ^{[1
]}

VAJPEI, AC ^{[1
]}

ROUSSET, A ^{[1
]}

机构：

[1] UNIV TOULOUSE 3,CHIM MAT INORGAN LAB,F-31062 TOULOUSE,FRANCE

来源：

JOURNAL OF THE LESS-COMMON METALS | 1991年 / 175卷 / 02期

关键词：

D O I：

10.1016/0022-5088(91)90013-T

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The IR absorption spectra of tetragonal copper manganite CuxMn3-x(O4) spinels (O < x < 1) have singled out a discontinuity in cation distribution to occur at x > 0.60 in conformity with that recorded by our previous measurements and have warranted the existence of a more complex cation distribution than that proposed earlier. It has been concluded from this study that the ionic configuration for x < 0.60, i.e. (Cux+-Mn1-x2+)A(Mn2-x3+ Mnx4+)BO4(2)-, changes for x > 0.60 to (Cux-y+Mn1-x+y2+)A(Cuy2+Mn2-x-y3+Mnx4+)(B)O4(2-), where y represents a low value (less than 0.20). When the oxidation of Mn2+ and Cu+ ions is achieved below 450-degrees-C, IR absorption measurements confirm the formation of a cation-deficient metastable spinel phase Cu1.5Mn1.5O4+delta with a 1:3 octahedral superstructure.

引用

页码：279 / 287

页数：9

共 50 条

[31] PRESSURE PRODUCTS DIAGRAM OF FEXV1-XO2 SYSTEM (0 LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 0.5)
HOTTA, Y
UEDA, Y
NAKAYAMA, N
KOSUGE, K
KACHI, S
SHIMADA, M
KOIZUMI, M
JOURNAL OF SOLID STATE CHEMISTRY, 1984, 55 (03) : 314 - 319
[32] SINGLE-CRYSTAL INVESTIGATIONS ON NASICON NA/1+Z/ZR/2-Y/SI/X/P/3-X/0-12 - 0-LESS-THAN-X-LESS-THAN-3, 0-LESS-THAN-Y-LESS-THAN-3/4, 0-LESS-THAN-OR-EQUAL-TO-Z-LESS-THAN-OR-EQUAL-TO-3 COMPARISON OF THE COMPOUNDS X=1.24 AND X=3
KOHLER, H
SCHULZ, H
SOLID STATE IONICS, 1983, 9-10 (DEC) : 795 - 798
[33] MIXED TUNGSTEN MOLYBDENUM TRIOXIDE HYDRATES W1-XMOXO3.1/3H2O (0-LESS-THAN-X-LESS-THAN-1)
HARB, F
GERAND, B
FIGLARZ, M
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II, 1986, 303 (06): : 445 - 447
[34] DETERMINATION OF LAYER STRUCTURE IN SR1-XLAXTIO3+0.5X (0-LESS-THAN-X-LESS-THAN-1) COMPOUNDS BY HIGH-RESOLUTION ELECTRON-MICROSCOPY
BOWDEN, ME
JEFFERSON, DA
BROWN, IWM
JOURNAL OF SOLID STATE CHEMISTRY, 1995, 117 (01) : 88 - 96
[35] Magnetic properties of Li1-xNi1+xO2(0 less than or similar to x less than or similar to 0.08)
Yamaura, K
Takano, M
Hirano, A
Kanno, R
JOURNAL OF SOLID STATE CHEMISTRY, 1996, 127 (01) : 109 - 118
[36] PHASE RELATIONS IN VXMO1-XO2 SYSTEM (0 IS EQUAL TO OR LESS THAN X IS EQUAL TO OR LESS THAN 0.55)
MARINDER, BO
MATERIALS RESEARCH BULLETIN, 1975, 10 (09) : 909 - 914
[37] MAINTENANCE OF ELECTRONIC EXCHANGE IN MOXFE3-XO4 (0 LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 1) BY ADAPTATION OF THE MOLYBDENUM VALENCE
RAMDANI, A
GAVOILLE, G
HUBSCH, J
GLEITZER, C
REVUE DE CHIMIE MINERALE, 1985, 22 (05): : 588 - 601
[38] REACTIVITY OF CUXCO3-XO4 SPINEL OXIDES (0 LESS-THAN-OR-EQUAL-TO X LESS-THAN 1) TO CARBON-MONOXIDE REDUCTION
ANGELOV, S
ZHECHEVA, E
TYULIEV, G
REACTIVITY OF SOLIDS, 1987, 3 (1-2): : 57 - 65
[39] EXCITON MECHANISMS IN THE RADIATIVE PROCESSES OF PERFECT SEMICONDUCTOR SOLID-SOLUTIONS (ZNXCD1-XSE SYSTEM, 0-LESS-THAN-X-LESS-THAN-1)
NASIBOV, AS
SUSLINA, LG
FEDOROV, DL
KOROSTELIN, YV
SHAPKIN, PV
MARKOV, LS
FIZIKA TVERDOGO TELA, 1989, 31 (10): : 70 - 78
[40] ELECTRICAL-CONDUCTIVITY AND CRYSTALLOGRAPHIC CLASSIFICATION OF NDCU3RUXTI4-XO12 (1 LESS-THAN X LESS-THAN 4) AND ND(2+X)/3CU3RUXTI4-XO12 (X LESS-THAN 1)
MULLER, J
HAOUZI, A
LAVIRON, C
LABEAU, M
JOUBERT, JC
MATERIALS RESEARCH BULLETIN, 1986, 21 (09) : 1131 - 1136

← 1 2 3 4 5 →