Synthesis and some properties of La{sub 4-x}Mg{sub x}Ni{sub 3}O{sub y} solid solutions

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Inorganic Materials

OSTI ID:35534

Vashuk, V V; Ol`Shevskaya, O P; Prodan, S A; Zonov, Yu G; Tolochko, S P ^[1]

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1. Institute of General and Inorganic Chemistry, Minsk (Belarus)

Earlier studies of the La-Ni-O system indicated the formation of the LaNiO{sub 3} perovskite phase, tetragonal perovskite-like La{sub 2}NiO{sub 4} (K{sub 2}NiF{sub 4} structure), and a family of perovskite-like compounds represented by the general formula La{sub n+1}Ni{sub n}O{sub 3n+1} (n = 1,2,...), which crystallize in the orthorhombic system. The formation of La{sub 1-x}M{sub x}NiO{sub 3} solid solutions [M = Ca (x {le} 0.01), Sr (x {le} 0.05), Ba (x {le} 0.05)] was reported. In addition, La{sub 2-x}M{sub x}NiO{sub 4} solid solutions were prepared for M = Sr (x {le} 1.5), Ca (x {le} 0.5), and Ba (x {le} 1.0). At the same time, no data are available in the literature on the formation of La{sub 4-x}M{sub x}Ni{sub 3}O{sub y} solid solutions for M = Mg, Ca, Sr, and Ba. In this work, the authors report the results on the synthesis of La{sub 4-x}Mg{sub x}NiO{sub 3}O{sub y} solid solutions, their composition range, and some physicochemical properties as a function of temperature and oxygen partial pressure.

• OSTI ID: 35534
• Journal Information: Inorganic Materials, Journal Name: Inorganic Materials Journal Issue: 7 Vol. 30; ISSN INOMAF; ISSN 0020-1685
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHEMICAL PREPARATION
ELECTRIC CONDUCTIVITY
LANTHANUM OXIDES
MAGNESIUM OXIDES
NICKEL OXIDES
SOLID SOLUTIONS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
TETRAGONAL LATTICES