In this work, La1−xSrxNi0.4Fe0.6O3-δ (0 ≤ x 0.2) oxides were synthesized and employed as the identical electrode of direct methane symmetrical solid oxide fuel cell (SSOFC). addition, phase structure, redox stability, electrical conductivity, chemical compatibility, thermal expansion evaluated. The La2NiO4 occurs when amount doped Sr rises to 0.2. composition La0.9Sr0.1Ni0.4Fe0.6O3-δ (LSNF9146)...

High-resolution, high-energy, X-ray diffraction results are presented for the study of weak charge ordering phenomenon. By utilizing X-rays in the 100 keV region the dramatic increase in the penetration depth allows for both bulk-sensitive and highresolution measurements to be made. The strontium doped La2NiO4 system is a prototypical system in the understanding of strong electron-phonon coupli...