Prussian blue as a single precursor for synthesis of Fe/Fe3C encapsulated N-doped graphitic nanostructures as bi-functional catalysts. Issue 2 (1st September 2015)

• Record Type: Journal Article
• Authors: Barman, Barun Kumar; Nanda, Karuna Kar
• Is Part Of: Green chemistry. Volume 18:Issue 2(2016)
• Page Start: 427
• Page End: 432
• Publication Date: 2015-09-01
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/c5gc01405k
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : Prussian blue (FeIII4[Fe II (CN)6 ]3 ) is shown to be a unique, single source precursor for the synthesis of Fe/Fe3 C encapsulated N-doped graphitic structures and hollow N-doped graphitic nanostructures as bi-functional electrocatalysts for oxygen reduction/oxygen evolution reactions. Abstract : We report a unique, single source precursor Prussian blue (iron(iii ) ferrocyanide (FeIII4[Fe II (CN)6 ]3 )) for the synthesis of Fe/Fe3 C nanoparticle encapsulated N-doped graphitic layers and bamboo-like graphitic nanotubes. Hollow N-doped graphite (N-HG) nanostructures are obtained when the encapsulated nanostructures are treated with an acid. Both the encapsulated nanostructures and N-HG are shown to be applicable as bi-functional electrocatalysts for oxygen reduction (ORR) and oxygen evolution reactions (OER). The ORR activity is shown to be improved for N-HG and is comparable to commercial Pt/C. On the other hand, encapsulated nanostructures exhibit OER activity with long-term stability comparable to commercial RuO2 .