Microstructure and Soot-combustion Catalysis of Oxidized Zr₆₀Ce₅Pd₃₀Pt₅ Amorphous Alloy

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  • OZAWA Masakuni
    Institute of Materials and Systems for Sustainability, Nagoya University
  • KATSURAGAWA Naoya
    Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University
  • MASUDA Atsuhiko
    Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University
  • HATTORI Masatomo
    Institute of Materials and Systems for Sustainability, Nagoya University
  • YAMAURA Shin-ichi
    Institute for Materials Research, Tohoku University, [Present address: Polytechnic University]

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  • Microstructure and Soot-combustion Catalysis of Oxidized Zr<sub>60</sub>Ce<sub>5</sub>Pd<sub>30</sub>Pt<sub>5</sub> Amorphous Alloy

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<p>Metal-dispersed composites were derived from Zr60Ce5Pd30Pt5 amorphous alloy and their catalytic behavior for diesel soot combustion was studied. X-ray diffractograms and scanning electron micrographs indicated that mixtures of ZrO2 phase and the dispersed metallic phase were formed in the resulting material after heat treatment at 800°C in air. The oxidized alloy resulted in the enhanced soot combustion activity. The removal property of catalyst, evaluated as temperature, is almost 100°C better than that in the non-catalyzed reaction. The results indicated the importance of the composite structure for the fabrication of a new type of catalytic material prepared from amorphous alloys.</p>

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