Direct oxidation of methanol on Pt nanostructures supported on electrospun nanofibers of anatase

Eric Formo, Zhenmeng Peng, Eric Lee, Xianmao Lu, Hong Yang, Younan Xia

Research output: Contribution to journalArticlepeer-review


This letter reports an electrocatalytic study of electrospun anatase nanofibers decorated with Pt catalysts in the form of nanoparticles or nanowires. We decorated the surface of nanofibers with Pt through a polyol process, in which nanoparticles of 2-5 nm in size were formed with different densities depending on the reaction time. By adding Fe(III) ions to the polyol process, we also obtained Pt nanowires of ∼7 nm in diameter and up to 125 nm in length. We then studied the effects of both the coverage and morphology of the Pt nanostructures on the methanol oxidation reaction. Nanofibers with a submonolayer of Pt nanoparticles were found to display improved catalytic durability over commercial Pt/C as determined by chronoamperometry owing to a synergistic effect of the underlying anatase surface and the Pt nanostructures with well-defined facets. Improvement in catalytic activity and durability were also observed for Pt nanowires, indicating that the additional catalytic facets on the nanowires can enhance both catalytic ability and robustness.

Original languageEnglish (US)
Pages (from-to)9970-9975
Number of pages6
JournalJournal of Physical Chemistry C
Issue number27
StatePublished - Jul 10 2008
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry


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