Iron(II) molybdate is an inorganic compound with the chemical formula FeMoO4. It is a dark brown to yellow solid forming monoclinic crystals.
Synthesis Iron(II) molybdate is precipitated by the reaction of iron(II) chloride or iron(II) sulfate and sodium molybdate.
Na2MoO4 + FeSO4 → Na2SO4 + FeMoO4 Na2MoO4 + FeCl2 → 2 NaCl + FeMoO4
Applications FeMoO4 has been used as relatively stable active material for anodes in Li-ion batteries for conversion reaction, as anode material in aqueous supercapacitors due to fast redox reactions and as catalyst for oxygen evolution in alkaline solutions.
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