Abstract
The tetragonal crystalline modification of LiFeO 2 was subjected to partial proton exchange reactions by hydrothermal treatment at 160°C in distilled water. The product after 1 day treatment had a Li/Fe ratio of ca. 0.15. A partial displacement of octahedrally coordinated Fe(III) ions to A sites of a spinel-related structure was observed. The presence of hydrogen in the structure was shown by water release reactions between 300 and 500°C. The product treated at 800°C was a mixture of LiFe 5O 8 and α-Fe 2O 3.
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