The defect chemistry of LaMnO[sub 3[+-][delta]]. 4. Defect model for LaMnO[sub 3+[delta]]

Journal Article · Sun May 01 00:00:00 EDT 1994 · Journal of Solid State Chemistry; (United States)

OSTI ID:7073265

Roosmalen, J A.M. van; Cordfunke, E H.P. ^[1]

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1. Netherlands Energy Research Foundation ECN, Petten (Netherlands)

The defect model for LaMnO[sub 3+[delta]] has been studied. The defects that are formed in LaMnO[sub 3+[delta]] are La and Mn vacancies in equal amounts. Thermogravimetric analyses indicate that the relation between composition ([delta]) and oxygen partial pressure can be described by charge disproportionation of Mn[sup 3+] into Mn[sup 2+] and Mn[sup 4+]. The same model holds for (La,Sr)MnO[sub 3+[delta]].

• OSTI ID: 7073265
• Journal Information: Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 110:1; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
GRAVIMETRIC ANALYSIS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATHEMATICAL MODELS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
RARE EARTH COMPOUNDS
REDUCTION
STOICHIOMETRY
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPOUNDS