Excellent performance of Pt-free cathode in alkaline direct methanol fuel cell at room temperature
By Goswami, Gopal Krishna; Nandan, Ravi; Barman, Barun Kumar & Nanda, Karuna Kar
Published in J. Mater. Chem. A
The Royal Society of Chemistry
2013
Abstract
We report the room temperature cell performance of alkaline direct methanol fuel cells (ADMFCs) with nitrogen-doped carbon nanotubes (NCNTs) as cathode materials. NCNTs show excellent oxygen reduction reaction activity and methanol tolerance in alkaline medium. The open-circuit-voltage (OCV) as well as the power density of ADMFCs first increases and then saturates with NCNT loading. Similarly, the OCV initially increases and reaches saturation with the increase in the concentration of methanol feed stock. Overall, NCNTs exhibit excellent catalytic activity and stability with respect to Pt based cathodes.