Remarkable performance of heavily nitrogenated graphene in the oxygen reduction reaction of fuel cells in alkaline medium. (18th September 2015)

• Record Type: Journal Article
• Authors: Gopalakrishnan, K; Rao, C N R
• Is Part Of: Materials research express. Volume 2:Number 9(2015)
• Publication Date: 2015-09-18
• Subjects: nitrogen-doped graphene -- oxygen reduction reaction -- fuel cells; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/2/9/095503
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Graphene and other two-dimensional materials have been used as catalysts in the oxygen reduction reaction (ORR) in fuel cells with a few limitations in terms of the onset potential and number of electrons transferred per oxygen molecule. We find that heavily nitrogenated graphene with a nitrogen content of 14–18 wt.% and a high proportion of pyrrolic nitrogen, prepared under microwave irradiation, shows excellent activity towards ORR, comparable to platinum, with the transferred electron number of 4.