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A comparative study of the Ruddlesden-Popper series, Lan+1NinO3n+1 (n=1, 2 and 3), for solid-oxide fuel-cell cathode applications

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Academic year: 2021

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Figure

Fig. 1. Illustration of the Ruddlesden-Popper phases, La n+1 Ni n O 2n+1 (n = 1, 2 and 3).
Fig. 2. X-ray diffraction patterns for La 2 NiO 4.15 , La 3 Ni 2 O 6.95 and La 4 Ni 3 O 9.78 at room temperature.
Fig. 4. Thermal expansion data for La 2 NiO 4.15 , La 3 Ni 2 O 6.95 and La 4 Ni 3 O 9.78 from RT to 1173 K.
Fig. 8. Typical Nyquist plot for a higher-order Ruddlesden-Popper phase (La 4 Ni 3 O 9.78 ).

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