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Sub-2.0-nm Ru and composition-tunable RuPt nanowire networks

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Abstract

Recently, the synthesis of ultrathin nanostructures has attracted increasing interest because of their unique structure and properties. In this work, we report the synthesis of sub-2.0-nm Ru and composition-tunable RuPt nanowire networks using an environmentally friendly aqueous method. The structures were characterized using transmission electron microscopy (TEM), high-resolution TEM, X-ray diffraction (XRD), and energy-dispersive X-ray (EDX) spectroscopy. Moreover, the combined utilization of sodium n-dodecyl sulfate and potassium fluoride was determined to play a key role in the formation of these ultrathin nanostructures. The electrocatalytic properties of the sub-2.0-nm RuPt nanowire networks were investigated for methanol oxidation in an acidic medium. The nanostructures displayed composition-dependent properties, and compared with commercial Ru50Pt50/C, the as-synthesized Ru56Pt44 ultrathin nanowire network exhibited enhanced stability.

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guiyang, 550025, China

    Weiyue Zhao, Dabing Huang & Qiang Yuan

  2. Department of Chemistry, Tsinghua University, Beijing, 100084, China

    Xun Wang

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  1. Weiyue Zhao
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  2. Dabing Huang
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  3. Qiang Yuan
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  4. Xun Wang
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Correspondence to Qiang Yuan or Xun Wang.

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Zhao, W., Huang, D., Yuan, Q. et al. Sub-2.0-nm Ru and composition-tunable RuPt nanowire networks. Nano Res. 9, 3066–3074 (2016). https://doi.org/10.1007/s12274-016-1189-4

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