Frontiers in Chemistry (Oct 2018)

Laser-Assisted Production of Carbon-Encapsulated Pt-Co Alloy Nanoparticles for Preferential Oxidation of Carbon Monoxide

  • Gema Martinez,
  • Gema Martinez,
  • Ana Malumbres,
  • Angela Lopez,
  • Reyes Mallada,
  • Reyes Mallada,
  • Jose L. Hueso,
  • Jose L. Hueso,
  • Jesus Santamaria,
  • Jesus Santamaria

DOI
https://doi.org/10.3389/fchem.2018.00487
Journal volume & issue
Vol. 6

Abstract

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C-encapsulated highly pure PtxCoy alloy nanoparticles have been synthesized by an innovative one-step in-situ laser pyrolysis. The obtained X-ray diffraction pattern and transmission electron microscopy images correspond to PtxCoy alloy nanoparticles with average diameters of 2.4 nm and well-established crystalline structure. The synthesized PtxCoy/C catalyst containing 1.5 wt% of PtxCoy nanoparticles can achieve complete CO conversion in the temperature range 125–175°C working at weight hourly space velocities (WHSV) of 30 L h−1g−1. This study shows the first example of bimetallic nanoalloys synthesized by laser pyrolysis and paves the way for a wide variety of potential applications and metal combinations.

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