Characterization of the High Temperature Form of Fe2(MoO4)3

Abstract
Ferric molyhdate in its high temperature orthorhomhic phase has been characterized by conductometric and thermogravimetric measurements. In the temperature range 793-973 K the compound can exist with O2 and MoO3 deficiencies. Defect models are proposed which can explain the experimental results: while a majority defect pair constituted by (Vo2-,e') seems to be valid at T = 793 K, two majority defect pairs (Vo2-, e'; V6' Mo, VO 2') are taken as possible at T = 873 K

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