Catalytic behavior of La0.6Sr0.4Co0.8Fe0.2O3 Perovskite-type Oxide During Methane Combustion

Catalytic Combustion of Methane

Catalytic combustion is an environmentally benign technology which has recently reached the stage of commercialization. Palladium is the catalyst of choice when considering gas turbines fuelled with natural gas because of its superior activity for methane oxidation. Several fundamental issues are still open and their understanding would result in an improvement of the technology. Hence, the wor...

Auto - combustion synthesis of perovskite - type oxides

A versatile one-pot auto-combustion method for the synthesis of powders of iron-doped strontium titanate, SrTi1-xFexO3-δ, has been developed. The synthesis is optimised by the combined use of EDTA and citric acid as chelating agents, and an appropriate balance between fuel and oxidising elements in the reaction mixture. The method produces immediately an almost phase-pure perovskite oxide powde...

Synthesis of Barium Hexaferrite and Catalytic Behavior in the Combustion of Methane

Barium hexafemte doped with iridium was synthesized by two methods: the citrate gel and the polyacrylamide gel methods. The nature of phases obtained and the specific surface area were determined after heat treatments in air at 700°C, 900°C and in air containing 10% humidity at 1200°C. The catalytic activity in the combustion of methane was measured after heat treatment at 900°C. These hexaferr...

Non-Noble Metal Oxide Catalysts for Methane Catalytic Combustion: Sonochemical Synthesis and Characterisation

The aim of this study was to obtain nanocrystalline mixed metal-oxide-ZrO₂ catalysts via a sonochemically-induced preparation method. The effect of a stabiliser's addition on the catalyst parameters was investigated by several characterisation methods including X-ray Diffraction (XRD), nitrogen adsorption, X-ray fluorescence (XRF), scanning electron microscopy (SEM) equipped with energy dispers...

Perovskite-type Ceramic Membranes Partial Oxidation of Methane in a Catalytic Membrane Reactor Dissertation