Search results for " solution combustion synthesis"

showing 2 items of 2 documents

Ceria-based electrolytes prepared by solution combustion synthesis: The role of fuel on the materials properties

2016

Ce0.8Sm0.2O2 − xpowders were synthesized by solution combustion synthesis using citric acid, cellulose and sucrose as single, or intimately mixed, fuels. The powders were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, N2sorption at −196 °C, H2-temperature programmed reduction and thermogravimetric analyses. Textural properties of the powders were shaped by the peculiar employed fuel. The study of reducibility revealed that oxygen vacancies formation is mainly influenced by both parameters, specific surface area and total pore volume. The different tendency toward reduction played a key role in sintering under reducing atmosphe…

Thermogravimetric analysisMaterials scienceScanning electron microscopeInorganic chemistrySintering02 engineering and technology010402 general chemistry01 natural sciencesCatalysisCatalysiSpecific surface areaTemperature-programmed reductionSolution combustion synthesiGeneral Environmental ScienceIT-SOFC2300Reducing atmosphereProcess Chemistry and TechnologySamarium doped ceria021001 nanoscience & nanotechnologyMicrostructureSintering in reducing atmosphere0104 chemical sciencesDielectric spectroscopyIT-SOFC; Reducibility; Samarium doped ceria; Sintering in reducing atmosphere; Solution combustion synthesis; Catalysis; 2300; Process Chemistry and TechnologyChemical engineeringSolution combustion synthesisSettore CHIM/03 - Chimica Generale E Inorganica0210 nano-technologyReducibility
researchProduct

Sustainable Recycling of Insoluble Rust Waste for the Synthesis of Iron-Containing Perovskite-Type Catalysts

2019

Insoluble rust waste from the scraping of rusted iron-containing materials represents a cheap, eco-friendly, and available source of iron. LaFeO3 perovskite-type powders were successfully prepared by solution combustion synthesis using rust waste from an electricity transmission tower manufacturer. Solution combustion synthesis enabled introduction of this insoluble iron precursor directly into the final product, bypassing complex extraction procedures. Catalytic activity in the propylene oxidation of the waste-derived LaFeO3 with stoichiometric Fe/La ratio was almost identical to the commercial iron nitrate-derived LaFeO3 , thus demonstrating the viability of this recycling solution. The a…

rust wasteInsoluble rust waste LaFeO3 perovskite solution combustion synthesis propylene oxidationiron catalystsChemistryGeneral Chemical EngineeringFinal productExtraction (chemistry)General ChemistrySolution combustionRustArticleCatalysislcsh:ChemistryChemical engineeringlcsh:QD1-999Binary systemSettore CHIM/07 - Fondamenti Chimici Delle TecnologieStoichiometryPerovskite (structure)
researchProduct