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FeOOH-templated synthesis of hollow porous platinum nanotubes as superior electrocatalyst towards methanol electrooxidation

Abstract

The metallic nanomaterials with 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 nanotubes (Pt-NTs) using polyelectrolyte-modified FeOOH nanorods as template. To our knowledge, the utilization of FeOOH nanorods as templates to the synthesis of hollow porous Pt nanostructures has not been reported. The obtained Pt-NTs presents the combined merits of one-dimensionally (1D) hollow architecture, reactant accessible porous-surface and large surface area (37.8 m2 g-1). As a result, the superior catalytic activity and stability for the methanol oxidation reaction (MOR) is achieved with the Pt-NTs as an anode catalyst. Relative to commercial Pt-black catalyst, the Pt-NTs exhibits 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.

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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, Accepted Manuscript
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    FeOOH-templated synthesis of hollow porous platinum nanotubes as superior electrocatalyst towards methanol electrooxidation

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

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