Oxygen Reduction Reaction (ORR) Performance of Nitrogen- Containing Carbon Nanostructures (CNx) and Iron-Nitrogen-Carbon (FeNC) Catalysts in Acidic and Alkaline Media

The current study compares the nitrogen doped carbon nanostructures (CN_x) and iron-nitrogen-carbon (FeNC) catalysts for their oxygen reduction reaction (ORR) activity and stability in both half and fuel cells. Several surface and bulk characterization techniques were also used to gain insights into nature of active sites in these materials.