Effects of Cobalt and Nickel Substitution οn Physical Properties of Perovskite Type Oxides Prepared by the Sol-Gel Citrate Method

Abstract

In this study, lanthanum and Co-, Ni-based oxides at different compositions were prepared by the sol-gel citrate method. Ammonium carbonate and citric acid were used as complexing agent and solvent. The oxides were characterized by scanning electron microscopy-energy-dispersive spectroscopy, X-ray diffraction, and the Brunauer-Emmett-Teller method. Surface area analysis was carried out and the effects of substitution of cobalt and nickel on the physical properties of the synthesized oxides were investigated.

Sentez Yöntemi ile LSAF Perovskit Morfolojisinin Ayarlanması

“…The particles exist a gel structure in this method [11]. Sol-gel is very useful in obtaining perovskites with high phase purity [12]. Hydrothermal method is also a very popular and appropriate technique for the synthesis of numerous multi-component oxide materials [13].…”