Synthesis and catalytic properties of lanthanum nickelate perovskite materials

Abstract

The lanthanum nickelate, LaNiO 3-δ , perovskite catalyst was synthesized by the Pechini process, characterized by X-ray diffraction patterns, iodometric titrations, BET-surface area and scanning electron microscopy. The material obtained was used as catalyst for n-heptane combustion in the temperature range of 350-450ºC under dynamic air atmosphere, in a fixed bed continuous flow reactor. This catalyst shows very good performance in n-heptane combustion.

Use of Perovskite-Type Lanthanum Nickelate Synthesized by the Polymeric Precursor Method in the Steam Reforming Reaction of Methane

“…In the present work, we prepare perovskite type oxides by the polymeric precursor method [12]. This method presents several advantages compared with other approaches, such as high product homogeneity and purity, uniform distribution of phases and relatively low processing temperatures [13,14]. Both supported and unsupported catalysts were characterized by X-ray diffraction, BET surface area and thermo-programmed reduction.…”

Tailoring of morphology and orientation of LaNiO3 films from polymeric precursors

“…Among perovskite oxides with one lanthanide and one transition metal atom, LaNiO 3 stands out, because of its electric, 1 magnetic 2 and catalytic 3 properties. This oxide has very high conductivity which makes it suitable replacement for platinum electrodes in ferroelectric devices.…”