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- W2009405722 abstract "FeVO4 was synthesised by conventional solid state technique. Impedance measurements using a silver electrode were unsuccessful due to a solid state reaction between FeVO4 and Ag, forming α-AgVO3 and α-Fe2O3 at the interface. Impedance measurements, with a platinum electrode, reaffirmed that FeVO4 exhibits semiconductor behaviour in air. In a reducing atmosphere, 5% H2/Ar, high electronic conductivity, from 1 S cm−1 at 300 °C to 2 S cm−1 at 700 °C, was observed with an activation energy of 0.13(1) eV. X-ray diffraction, thermogravimetric analysis and differential scanning calorimetry data determined that the change in electronic conductivity was due to the degradation of the material into FeV2O4 and α-Fe2O3. It is believed that the conduction was due to electron hopping between vanadium d-orbitals. Neither FeVO4 nor FeV2O4 are deemed suitable as anode materials for solid oxide fuel cells, due to redox instability." @default.
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- W2009405722 date "2011-04-01" @default.
- W2009405722 modified "2023-10-12" @default.
- W2009405722 title "Study on conductivity and redox stability of iron orthovanadate" @default.
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- W2009405722 doi "https://doi.org/10.1016/j.matchemphys.2011.01.009" @default.
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