Determination of characteristic properties of Co3O4 loaded LaFe x Al12−x O19 hexaaluminates
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Meltem Karaismailoglu Elibol
Asst. Prof. Meltem Karaismailoglu Elibol, born in 1986, received her B.Sc. in Chemistry from Yildiz Technical University, Turkey in 2010 and her M. Sc. from Munich Technical University, Germany in 2012. In 2019 she finished her Ph.D. in Chemical Engineering at YTU. Her research interests include the development of catalysts for catalytic hydrogen generation from methane and biomass. She is currently working as an assistant professor at Turkish-German University, Turkey.
Abstract
Hexaaluminates are drawing attention due to their exceptional mechanical and thermal stability. They can be proposed for applications as catalysts or catalyst support materials in high-temperature reactions. In this study, various LaFe x Al12−x O19 samples (x = 0.25, 0.5, 1, and 2) have been synthesized using the sol–gel method. Subsequently, these hexaaluminate samples were impregnated with cobalt oxide to form more active centers on the hexaaluminate support. The influence of the iron (Fe) content on the crystal structure, redox properties, and oxygen immobility has been investigated through X-ray diffraction, hydrogen temperature-programmed reduction, and oxygen temperature-programmed desorption techniques. Among the Co3O4@LaFe x Al12−x O19 samples, those with x ≥ 1 exhibited a hexaaluminate crystalline structure, demonstrating a higher lattice oxygen mobility.
Funding source: Turkish-German University Scientific Research Projects Commission under the grant no: 2021BF05
About the author
Asst. Prof. Meltem Karaismailoglu Elibol, born in 1986, received her B.Sc. in Chemistry from Yildiz Technical University, Turkey in 2010 and her M. Sc. from Munich Technical University, Germany in 2012. In 2019 she finished her Ph.D. in Chemical Engineering at YTU. Her research interests include the development of catalysts for catalytic hydrogen generation from methane and biomass. She is currently working as an assistant professor at Turkish-German University, Turkey.
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Research ethics: Not applicable.
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Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The author states no conflict of interest.
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Research funding: This study was supported by Turkish-German University Scientific Research Projects Commission under the grant no: 2021BF05.
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Data availability: Not applicable.
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Articles in the same Issue
- Frontmatter
- User independent tool for the analysis of data from tensile testing for database systems
- Evaluation of corrugated core configuration effects on low-velocity impact response in metallic sandwich panels
- Effect of total heat input on coaxiality of rotor shaft in laser cladding
- Determination of characteristic properties of Co3O4 loaded LaFe x Al12−x O19 hexaaluminates
- Investigation on quasi-static axial crushing of Al/PVC foam-filled Al6063-T5 tubes
- Experimental analysis of the effects of different production directions on the mechanical characteristics of ABS, PLA, and PETG materials produced by FDM
- Interfacial microstructure and mechanical properties of Si3N4/Invar joints using Ag–Cu–In–Ti with Cu foil as an interlayer
- Properties of chemically foamed polypropylene materials for application to automobile interior door panels
- Tribological and thermal characteristics of copper-free brake friction composites
- Dry tribological behaviour of microwave-assisted sintered AA2024 matrix hybrid composites reinforced by TiC/B4C/nano-graphite particles
- Erosion rate of AA6082-T6 aluminum alloy subjected to erosive wear determined by the meta-heuristic (SCA) based ANFIS method
- Mechanical properties of elevator ropes and belts exposed to corrosion and elevated temperatures
- Variants of friction stir based processes: review on process fundamentals, material attributes and mechanical properties
- Performance of conventional and wiper CBN inserts under various cooling conditions in hard turning of AISI 52100 steel
