MSc.Thesis Defense:Bahadır Patır

DEVELOPMENT OF TRANSITION METAL DOPED IRIDIUM OXIDE ELECTROCATALYST AND ELECTRODES FOR OXYGEN EVOLUTION REACTION (OER) IN MEMBRANE BASED ELECTROLYZERS

BAHADIR PATIR
Material Science and Nano Engineering, MSc. Thesis, 2024

Thesis Jury

Asst. Prof. Alp Yürüm (Thesis Supervisor), Prof. Selmiye Alkan Gürsel (Thesis Co-supervisor), Prof. Mehmet Ali Gülgün, Assoc. Prof. Mustafa Kemal Bayazıt, Assoc. Prof. Önder Metin

Date & Time: 23rd July, 2024 – 12.30 PM

Place: FENS L048

Keywords: Transition metal doped iridium oxide, OER, Titanium nanotube,

Titanium mesh, Anodization

Zoom link: https://sabanciuniv.zoom.us/j/9454399130?omn=92995636494

Abstract

This thesis focuses on the development of transition metal-doped IrO₂ electrocatalysts and electrodes for the oxygen evolution reaction in membrane-based electrolyzers. The research aims to address the high costs and limited availability of IrO₂ by doping it with transition metals, thereby enhancing its catalytic activity and stability. Synthesis methods of sol-gel for catalyst production and anodization for TiO₂ nanotube growth on titanium mesh, were employed. The performance of the synthesized catalysts was evaluated through structural and electrochemical characterizations such as XRD, SEM, LSV, and EIS. The results demonstrated significant improvements in catalytic efficiency and stability, as well as successful TiO₂ growth on titanium mesh. The performance of the transition metal-doped IrO₂ and their interaction with nanotubular TiO₂ coated titanium mesh were also assessed, highlighting the potential of these doped catalysts for sustainable hydrogen production in electrolyzers.

Best Regards,

FENS Grad Office