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Comparative Study of Different Carbon Nanotube-Supported Platinum Bimetallic and Trimetallic Catalysts for Methanol and Ethanol Oxidation

Release time:2023-10-19  Hits:

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  • Abstract:We report here effects of single-walled carbon nanotube-supported Pt-based bimetallic catalysts (Pt-Cr, Pt-Mn, Pt-Fe, Pt-Co, Pt-Ni, and Pt-Sn) and trimetallic catalyst (Pt-Cr-Co) on methanol and ethanol oxidation. In comparison to a Pt catalyst, the introduction of other elements can improve catalytic oxidation characteristics in terms of oxidation potential, oxidation current density, and the tolerance to poisoning by absorbed species. Meanwhile, the Pt-Cr-Co trimetallic catalyst has better catalytic properties than Pt-Cr and Pt-Co catalysts. For instance, in comparison to a Pt catalyst for methanol oxidation, the addition of Fe, Ni, and Sn improves the tolerance to poisoning, increases the oxidation current density, and decreases the oxidation potential, respectively.
  • Volume:41
  • Issue:1
  • Translation or Not:no
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