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A Versatile Iron-Tannin-Framework Ink Coating Strategy to Fabricate Biomass-Derived Iron Carbide/Fe-N-Carbon Catalysts for Efficient Oxygen Reduction

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Authors
Wei, J.
Liang, Y.
Hu, Y.
Kong, B.
Simon, G.
Zhang, J.
Jiang, San Ping
Wang, H.
Date
2015
Type
Journal Article

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Wei, J. and Liang, Y. and Hu, Y. and Kong, B. and Simon, G. and Zhang, J. and Jiang, S.P. et al. 2015. A Versatile Iron-Tannin-Framework Ink Coating Strategy to Fabricate Biomass-Derived Iron Carbide/Fe-N-Carbon Catalysts for Efficient Oxygen Reduction. Angewandte Chemie:International Edition. 55 (4): pp. 1355-1359.
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Angewandte Chemie - International Edition
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Fuels and Energy Technology Institute
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Abstract

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. The conversion of biomass into valuable carbon composites as efficient non-precious metal oxygen-reduction electrocatalysts is attractive for the development of commercially viable polymer electrolyte membrane fuel-cell technology. Herein, a versatile iron-tannin-framework ink coating strategy is developed to fabricate cellulose-derived Fe3C/Fe-N-C catalysts using commercial filter paper, tissue, or cotton as a carbon source, an iron-tannin framework as an iron source, and dicyandiamide as a nitrogen source. The oxygen reduction performance of the resultant Fe3C/Fe-N-C catalysts shows a high onset potential (i.e. 0.98 V vs the reversible hydrogen electrode (RHE)), and large kinetic current density normalized to both geometric electrode area and mass of catalysts (6.4 mAcm-2 and 32 mAmg-1 at 0.80 V vs RHE) in alkaline condition. This method can even be used to prepare efficient catalysts using waste carbon sources, such as used polyurethane foam.