The present study focuses on an alternative structured oxygen electrode for solid oxide electrolysis cells (SOECs). La2NiO4+δ nickelate, LNO, was selected with respect to its mixed electronic and ionic conductivity good chemical stability. Complete single were built using screen printing of LNO LaNi0.6Fe0.4O3 (LNF) layers a standard hydrogen supported half cell consisting porous NiO-YSZ layer, ...

In this paper, the effects of infiltration of La2NiO4 (LNO) as a mixed ionic and electronic conductor (MIEC) on the electrochemical performance of porous strontium doped lanthanum manganite (LSM) oxygen electrode of solid oxide cells, in the temperature ranges of 650-850 °C, is reported. XRD and FE-SEM results of the LNO sample calcined at 900 °C confirmed the formation of single phase LNO nano...

Use of rare earth elements (REEs) has increased rapidly in recent decades due to technological advances. It has been accompanied by recurring rare earth element anomalies in water bodies. In this work we (i) studied the effects of eight novel doped and one non-doped rare earth oxide (REO) particles (aimed to be used in solid oxide fuel cells and gas separation membranes) on algae, (ii) quantifi...

• La 2 NiO 4 exhibits remarkable kinetic metastability in the DRM mixture up to 800 °C. Decomposition of yields mainly a Ni/La O 3 composite. Reaction-formed hydrogen aids decomposition at lower temperatures. Considerable coking and encapsulation exsolved Ni revealed by situ XRD. We focus on stability bulk/surface structural properties Ruddlesden-Popper phase their consequences for dry reformin...

Inspired by recent experiments on the Sr–doped nickelates, La2−xSrxNiO4, we propose a minimal microscopic model capable to describe the variety of the observed quasi–static charge/lattice modulations and the resulting magnetic and electronic–transport anomalies. Analyzing the motion of low–spin (s = 1/2) holes in a high–spin (S = 1) background as well as their their coupling to the in–plane oxy...