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Compatibility evaluation between La2Mo2O9 fast oxide-ion conductor and Ni-based materials

Abstract : The chemical reactivity of La2NiO4+delta and nickel metal or nickel oxide with fast oxide-ion conductor La2Mo2O9 is investigated in the annealing temperature range between 600 and 1000°C, using room temperature X-ray powder diffraction. Within the La2NiO4+delta/ La2Mo2O9 system, subsequent reaction is evidenced at relatively low annealing temperature (600°C), with formation of La2MoO6 and NiO. The reaction is complete at 1000 1C. At reverse, no reaction occurs between Ni or NiO and La2Mo2O9 up to 1000°C. Together with a previous work [G. Corbel, S. Mestiri, P. Lacorre, Solid State Sci. 7 (2005) 1216], the current study shows that Ni-CGO cermets might be chemically and mechanically compatible anode materials to work with LAMOX electrolytes in solid oxide fuel cells.
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https://hal-univ-lemans.archives-ouvertes.fr/hal-02134996
Contributeur : Gwenaël Corbel <>
Soumis le : lundi 20 mai 2019 - 21:18:24
Dernière modification le : jeudi 29 août 2019 - 10:08:01

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Gwenaël Corbel, Philippe Lacorre. Compatibility evaluation between La2Mo2O9 fast oxide-ion conductor and Ni-based materials. Journal of Solid State Chemistry, Elsevier, 2006, 179 (5), pp.1339-1344. ⟨10.1016/j.jssc.2006.01.051⟩. ⟨hal-02134996⟩

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