Abstract
The formation of α-NaFeO2 and β-NaFeO2 below 700°C was found to depend strongly on the structure of starting iron oxide; α-Fe2O3 with hcp of oxygen yielded β-NaFeO2 with hcp and γ-Fe2O3 with ccp of oxygen yielded α-NaFeO2 with ccp by a reaction either with Na2CO3 or Na2O2. The doping of Na-ions into the γ-Fe2O3 structure and its rapid change to α-NaFeO2 were observed. The transformation from the metastable β-NaFeO2 to the stable α-form was very much sluggish in the solid state, but it was accelerated by the presence of the liquid Na2O2. © 1980, All rights reserved.
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CITATION STYLE
Takeda, Y., Akagi, J., Edagawa, A., Inagaki, M., & Naka, S. (1980). A preparation and polymorphic relations of sodium iron oxide (NaFeO2). Materials Research Bulletin, 15(8), 1167–1172. https://doi.org/10.1016/0025-5408(80)90081-1
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