Graphene-Based Carbon Nitride Nanosheets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reactions

Authors

  • Dr. Shubin Yang,

    1. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany), Fax: (+49) 6131-379-350
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  • Dr. Xinliang Feng,

    Corresponding author
    1. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany), Fax: (+49) 6131-379-350
    • Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany), Fax: (+49) 6131-379-350
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  • Dr. Xinchen Wang,

    1. Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam (Germany)
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  • Prof. Dr. Klaus Müllen

    Corresponding author
    1. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany), Fax: (+49) 6131-379-350
    • Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany), Fax: (+49) 6131-379-350
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  • This work was financially supported by the Max Planck Society through the program ENERCHEM, the German Science Foundation (Korean-German IRTG), DFG Priority Program SPP 1355, DFG MU 334/32-1, DFG Priority Program SPP 1459, BMBF LiBZ Project, and ESF Project GOSPEL (Ref Nr: 09-EuroGRAPHENE-FP-001). We also thank Prof. Markus Antonietti for helpful discussions.

Abstract

original image

Sandwich-like, graphene-based carbon nitride nanosheets (G–CN), among many other advantages, show an enhanced electrical conductivity. Oxygen atoms can thus access the catalyst surface easily and the rapid diffusion of electrons in the electrode during the oxygen reduction process is facilitated. G–CN nanosheets can hence serve as metal-free electrocatalysts for oxygen reduction reactions (ORR) with excellent performance.

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