Crystal chemistry of catalyst materials. I. Composition and unit cell parameters of “REMnO3” phases prepared in air |
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| Authors: | Gregory J McCarthy Paul V Gallagher Carol Sipe |
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| Affiliation: | Materials Research Laboratory The Pennsylvania State University University Park, Pennsylvania 16802 USA |
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| Abstract: | Oxygen stoichiometry and manganese valences have been determined for “REMnO3” phases prepared in air where RE are the rare earths from Nd to Lu including Y but excluding Tb. All of the phases had a slight oxygen deficiency and partial Mn2+ for Mn3+ substitution. This contrasts with “LaMnO3” which is known to have extensive Mn4+ for Mn3+ substitution when prepared in air. |
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