In this study, strontium and copper dual-doped La2NiO4 annealed in Ar (La0.5Sr1.5Ni0.9Cu0.1O4-?-Ar, LSNC-Ar) with K2NiF4 structure is strategically designed as an ammonia oxidation reaction (AOR) hydrogen evolution (HER) bifunctional catalyst for high-efficiency electrolysis. The selective substitution of lanthanum high content improves the electronic conductivity increases oxygen vacancy conce...

This work presents the results from a study of structure and transport properties Ca-doped La2NiO4+?. La2?xCaxNiO4+? (x = 0–0.4) materials that were synthesized via combustion organic-nitrate precursors characterized by X-ray diffraction (XRD), in situ XRD using synchrotron radiation, thermogravimetric analysis (TGA) isotope exchange oxygen with C18O2. The was defined as orthorhombic (Fmmm) for...