Facilely constructing robust nanohybrids comprising high dispersion of platinum–ruthenium nanoparticles on carbon nanotubes and their enhanced electrocatalytic performance

Authors

  • Ying Cui,

    1. Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Lushan Road, Changsha 410081, P.R. China
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  • Bohua Wu,

    Corresponding author
    1. College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, P.R. China
    • Phone/Fax: +86 29 85583182
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  • Liqiu Mao,

    Corresponding author
    1. Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Lushan Road, Changsha 410081, P.R. China
    • Phone: +86 731 88872576, Fax: +86 731 88872531
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  • Dulin Yin

    1. Key Laboratory of Resource Fine-Processing and Advanced Materials of Hunan Province and Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Lushan Road, Changsha 410081, P.R. China
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Abstract

A method for high dispersion of PtRu nanoparticles (NPs) on carbon nanotubes (CNTs) based on noncovalently functionalized CNTs with dodecylamine (DA) is reported. The process of functionalization of CNTs by DA is simple and can be carried out at room temperature without the use of expensive chemicals or corrosive acids, thus preserving the electronic conductivity and the corrosion resistance of CNTs. PtRu NPs on DA-functionalized CNTs show much better distribution with no formation of aggregates, higher electrochemically active surface (EAS) area, and higher electrocatalytic activity and stability for the electrooxidation of methanol as compared to that on conventional acid-oxidized CNTs.

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