EFFECT OF COMPOSITION ON THE LATTICE-PARAMETERS AND THERMAL-BEHAVIOR OF NICKEL(II)-COBALT(II) HYDROXIDE NITRATE SOLID-SOLUTIONS

被引：23

作者：

PETROV, K

ZOTOV, N

MIRTCHEVA, E

GARCIAMARTINEZ, O

ROJAS, RM

机构：

[1] BULGARIAN ACAD SCI,INST APPL MINERAL,BU-1000 SOFIA,BULGARIA

[2] CSIC,INST CIENCIA MAT,E-28006 MADRID,SPAIN

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1994年 / 4卷 / 04期

关键词：

D O I：

10.1039/jm9940400611

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：

A series of coprecipitated nickel(II)-cobalt(II) hydroxide nitrate samples with different cationic compositions has been studied by means of X-ray diffraction, infrared spectroscopy and thermal analysis. A continuous series of solid solutions NixCo2-x(OH)3NO3 (0 less-than-or equal-to x less-than-or-equal-to 2) is formed between the end members Ni2(OH)3NO3 and Co2(OH)3NO3. The observed changes in the IR spectra have been interpreted in terms of increased polarization of the NO3- group and increased strength of the hydrogen bonds when Ni2+ is gradually substituted for Co2+. The thermal stability of the solid solutions as well as the phase composition of the solid products of thermal decomposition depend upon the initial Ni:Co ratio in the samples.

引用

页码：611 / 614

页数：4

共 14 条

[1]

CHARLOT G, METHODS ANAL CHEM QU, P545

[2]

DELMAS C, 1992, 1991 P S A2 SOL STAT, P135

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