The present work investigates the chemical compatibility of La₂NiO_4+δ (LN) and La₂Mo_1.5W_0.5O₉ (W-LMO) as cathode/electrolyte and NiWO₄ (NW)/La₂Mo₂O₉ (LMO) as anode/electrolyte material for solid oxide fuel cell (SOFC) application respectively. The x- ray diffraction (XRD) study of LN/W-LMO shows the existence of five phases viz., La₂NiO_4+δ, La₂Mo_1.5W_0.5O₉, NiWO₄, NiO and La_1.77Mo_1.77O_8.001. Whereas, the XRD analysis of NW/LMO shows the formation of NiO, higher order molybdates viz., La₅Mo₄O₁₄ and La₁₂Mo₆O₃₅ as a result of partial Mo reduction. The formation of NiWO₄ as a secondary phase in La₂NiO_4+δ / La₂Mo_1.5W_0.5O₉ is a potential anode material which is studied with La₂Mo₂O₉ as anode/electrolyte by x-ray photoelectron spectroscopy (XPS). The XPS analysis of NW/LMO in Ar-H₂ atmosphere reveals the partial reduction of Mo to lower oxidation states. The presence of NiWO₄ is also verified by Raman spectroscopy with peaks at 698, 778 and 891 cm⁻¹ with the signatures of W-LMO and Mo-O bonding.

目前的工作研究了作为阴极/电解质的 La ₂ NiO _4+δ (LN) 和 La ₂ Mo _1.5 W _0.5 O ₉ (W-LMO) 与 NiWO ₄ (NW)/La ₂ Mo ₂ O ₉ (LMO )的化学相容性。) 分别作为固体氧化物燃料电池 (SOFC) 应用的阳极/电解质材料。LN/W-LMO 的 X 射线衍射 (XRD) 研究表明存在五个相，即 La ₂ NiO _4+δ、La ₂ Mo _1.5 W _0.5 O ₉、NiWO ₄、NiO 和 La _1.77钼_1.77 O _8.001。而 NW/LMO 的 XRD 分析表明，由于部分 Mo 还原，形成了 NiO、高级钼酸盐，即 La ₅ Mo ₄ O ₁₄和 La ₁₂ Mo ₆ O ₃₅。在 La ₂ NiO _4+δ / La ₂ Mo _1.5 W _0.5 O _{9 中}形成作为第二相的 NiWO ₄是与 La ₂ Mo ₂ O ₉一起研究的潜在负极材料通过 X 射线光电子能谱 (XPS) 作为阳极/电解质。NW/LMO 在 Ar-H ₂气氛中的 XPS 分析显示 Mo 部分还原为较低的氧化态。NiWO ₄的存在也通过拉曼光谱证实，在698、778和891 cm ^-1处具有峰，具有W-LMO和Mo-O键合的特征。