Rotating Ring-Disk Study of Metal-Nitrogen-Carbon Catalyst Prepared by High Pressure Pyrolysis
-
Published:2013-08-31
Issue:1
Volume:58
Page:1681-1689
-
ISSN:1938-5862
-
Container-title:ECS Transactions
-
language:
-
Short-container-title:ECS Trans.
Author:
Leonard Nathaniel,Ganesan Selvarani,Calabrese Barton Scott
Abstract
Low-cost oxygen reduction catalysts composed of pyrolyzed metal/nitrogen/carbon (MNC) compounds involve the association of metal and nitrogen species integrated into a conductive carbon support. The present work considers peroxide generation: an analysis of rotating ring-disk electrode studies sheds further light on the oxygen reduction mechanism of MNC catalysts. Oxygen reduction proceeds primarily through a complete four-electron pathway to water without a desorbing intermediate.
Publisher
The Electrochemical Society