Abstract
Oxygen Reduction Reaction (ORR) is an overarching technological and fundamental challenge in the context of electrochemical energy conversion. Recent developments in alkaline ionomer membranes that transport hydroxide anions have spurred research interests in the Alkaline Membrane Fuel Cell (AMFC) technology. Among several challenges such as improving hydroxide anion conductivity and anodic alcohol oxidation, a key source of overpotential loss is the cathodic ORR process. In this scenario, the fundamental understanding and design of novel electrocatalysts for ORR assume a crucial role. While Pt-based materials have been the mainstay in acidic medium, the dispensability of the so called "acid-stability" criterion permits the use of several non-noble metal based electrocatalysts for ORR in alkaline medium. In this dissertation a combination of catalyst synthesis, electrochemical studies and X-ray absorption spectroscopy (XAS) investigations have been carried to understand ORR in alkaline medium. Such a study is expected to provide a detailed understanding of the oxygen reduction mechanisms, pathways and ultimately methods to design novel electrocatalysts.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
