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Issue 2, 2012
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Synthesis of boron doped graphene for oxygen reduction reaction in fuel cells

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Abstract

Boron atoms, with strong electron-withdrawing capability, are doped into graphene frameworks forming boron doped graphene (BG) via a catalyst-free thermal annealing approach in the presence of boron oxide. Atomic force microscopic (AFM) and transmission electron microscopic (TEM) characterizations reveal that the as-prepared BG has a flake-like structure with an average thickness of ca. 2 nm. X-ray photoelectron spectroscopy (XPS) analysis demonstrates that boron atoms can be successfully doped into graphene structures with the atomic percentage of 3.2%. Due to its particular structure and unique electronic properties, the resultant BG exhibits excellent electrocatalytic activity towards oxygen reduction reaction (ORR) in alkaline electrolytes, similar to the performance of Pt catalysts. In addition, the non-metallic BG catalyst shows long-term stability and good CO tolerance superior to that of Pt-based catalysts. These results demonstrate that the BG, as a promising candidate in advanced electrode materials, may substitute Pt-based nanomaterials as a cathode catalyst for ORR in fuel cells as well as other electrochemical applications similar to the reported nitrogen doped graphene.

Graphical abstract: Synthesis of boron doped graphene for oxygen reduction reaction in fuel cells

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Publication details

The article was received on 21 Sep 2011, accepted on 26 Sep 2011 and first published on 02 Nov 2011


Article type: Paper
DOI: 10.1039/C1JM14694G
Citation: J. Mater. Chem., 2012,22, 390-395

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    Synthesis of boron doped graphene for oxygen reduction reaction in fuel cells

    Z. Sheng, H. Gao, W. Bao, F. Wang and X. Xia, J. Mater. Chem., 2012, 22, 390
    DOI: 10.1039/C1JM14694G

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