Journal
GREEN CHEMISTRY
Volume 18, Issue 2, Pages 427-432Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5gc01405k
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Funding
- Department of Science and Technology (DST)
- Council of Scientific and Industrial Research (CSIR)
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We report a unique, single source precursor Prussian blue (iron(III) ferrocyanide (Fe-4(III)[Fe-II(CN)(6)](3))) for the synthesis of Fe/Fe3C 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.
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