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Issue 17, 2017
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FeOOH-Templated synthesis of hollow porous platinum nanotubes as superior electrocatalysts towards methanol electrooxidation

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Abstract

Metallic nanomaterials with a hollow and porous structure have attracted a great deal of interest in electrocatalysis due to their high surface area, abundant active-sites and improved metal utilization efficiency. Herein, we report an effective layer-by-layer assembly strategy to prepare a novel type of hollow porous Pt nanotube (Pt-NT) using polyelectrolyte-modified FeOOH nanorods as templates. To our knowledge, the utilization of FeOOH nanorods as templates to synthesise hollow porous Pt nanostructures has not been reported. The obtained Pt-NTs present the combined merits of a one-dimensional (1D) hollow architecture, a reactant accessible porous-surface and a large surface area (37.8 m2 g−1). As a result, superior catalytic activity and stability for the methanol oxidation reaction (MOR) are achieved with the Pt-NTs as an anode catalyst. Compared to a commercial Pt-black catalyst, the Pt-NTs exhibit a factor of 1.4 and 1.2 enhancement in mass activity (231 A g−1) and specific activity (11.8 A m−2) for the MOR, respectively.

Graphical abstract: FeOOH-Templated synthesis of hollow porous platinum nanotubes as superior electrocatalysts towards methanol electrooxidation

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Publication details

The article was received on 20 May 2017, accepted on 07 Jul 2017 and first published on 10 Jul 2017


Article type: Paper
DOI: 10.1039/C7NJ01755C
Citation: New J. Chem., 2017,41, 8812-8817
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    FeOOH-Templated synthesis of hollow porous platinum nanotubes as superior electrocatalysts towards methanol electrooxidation

    H. Sun, L. Qi, X. Jiang, G. Fu, L. Xu, D. Sun, Z. Gu and Y. Tang, New J. Chem., 2017, 41, 8812
    DOI: 10.1039/C7NJ01755C

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