Non-precious metal electrocatalysts for oxygen reduction via ionothermal synthesis

Simple item page
dc.contributor.advisorKisand, Kaarel, juhendaja
dc.contributor.advisorTammeveski, Kaido, juhendaja
dc.contributor.authorIbrahim, Faruq Olamilekan
dc.contributor.otherTartu Ülikool. Loodus- ja täppisteaduste valdkond
dc.contributor.otherTartu Ülikool. Tehnoloogiainstituut
dc.date.accessioned2024-06-17T11:15:00Z
dc.date.available2024-06-17T11:15:00Z
dc.date.issued2024
dc.description.abstractThe increasing global energy demand necessitates the development of sustainable energy technologies. Anion-exchange membrane fuel cells (AEMFCs) present a promising alternative to proton-exchange membrane fuel cells (PEMFCs) due to their ability to utilize platinum group metal (PGM)-free catalysts, which significantly reduce costs and resource dependency. This thesis focuses on the synthesis, characterization, and performance evaluation of transition metal and nitrogen-doped carbon catalysts for AEMFCs. Utilizing cyclodextrine and magnesium nitrate, various PGM-free catalysts were developed, and the synthesis conditions were optimized. The catalysts were investigated with both physical and electrochemical characterization techniques. The catalysts' performance was assessed through rotating disk electrode (RDE) measurements and single-cell AEMFC tests. The optimized FeNC-CD3 catalyst exhibited a peak power density of 596 mW cm⁻², showcasing its potential as a viable alternative to conventional Pt-based catalysts. This work highlights the critical role of hierarchical porosity in enhancing oxygen reduction reaction (ORR) activity and paves the way for the development of cost-effective and efficient AEMFC technologies.
dc.identifier.urihttps://hdl.handle.net/10062/99690
dc.language.isoen
dc.publisherTartu Ülikool
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Estoniaen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ee/
dc.subjectAnion-exchange membrane fuel cells (AEMFCs)
dc.subjectPGM-free catalysts
dc.subjectOxygen reduction reaction (ORR)
dc.subjectM-N-C catalysts
dc.subject.otherbakalaureusetöödet
dc.titleNon-precious metal electrocatalysts for oxygen reduction via ionothermal synthesis
dc.title.alternativeIonotermiliselt sünteesitud väärismetallivabad katalüsaatorid hapniku redutseerumisreaktsiooni jaoks
dc.typeThesis

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
FaruqOlamilekanIbrahim_ST.pdf
Size:
1.66 MB
Format:
Adobe Portable Document Format
Download

Collections

Science and Technology - Bachelor's theses. Kuni 2024