Abstract：
:Nitrogen fixation is essential for the synthesis of many important chemicals (e.g., fertilizers, explosives) and basic building blocks for all forms of life (e.g., nucleotides for DNA and RNA, amino acids for proteins). However, direct nitrogen fixation is challenging as nitrogen (N₂) does not easily react with other chemicals. By dry ball-milling graphite with N₂, we have discovered a simple, but versatile, scalable and eco-friendly, approach to direct fixation of N₂ at the edges of graphene nanoplatelets (GnPs). The mechanochemical cracking of graphitic C--C bonds generated active carbon species that react directly with N₂ to form five- and six-membered aromatic rings at the broken edges, leading to solution-processable edge-nitrogenated graphene nanoplatelets (NGnPs) with superb catalytic performance in both dye-sensitized solar cells and fuel cells to replace conventional Pt-based catalysts for energy conversion.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Jeon IY,Choi HJ,Ju MJ,Choi IT,Lim K,Ko J,Kim HK,Kim JC,Lee JJ,Shin D,Jung SM,Seo JM,Kim MJ,Park N,Dai L,Baek JBdoi
10.1038/srep02260subject
Has Abstractpub_date
2013-01-01 00:00:00pages
2260issn
2045-2322pii
srep02260journal_volume
3pub_type
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