Synthesis of shape-controlled La2NiO4+δ nanostructures and their anisotropic properties for oxygen diffusion

This study highlights the synthesis of shape-controlled La2NiO4+delta nanostructures using a reverse microemulsion method. We report that surfactant to water mass ratio plays a key role in controlling the shape of the nanostructures. These nanostructures show a strong dependence of their oxygen transport properties on their geometries.