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The formation of Pt-Ru alloy nanoparticles in a carbon matrix under IR pyrolysis conditions |
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| Authors: | M N Efimov E L Dzidziguri E N Sidorova K O Chuprunov L M Zemtsov G P Karpacheva |
| Institution: | (1) Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 117912, Russia;(2) Moscow Institute of Steel and Alloys, Leninskii pr. 4, Moscow, 117936, Russia |
| Abstract: | Nanosized Pt-Ru alloy and Pt13Ru27 intermetallic compound particles dispersed in a carbon matrix were obtained for the first time directly during the preparation of the composite. The alloying of the Pt and Ru particles occurred at IR pyrolysis intensities corresponding to temperatures above 700°C over the whole homogeneity range of solid solutions based on platinum. Metallic nanoparticles were round-shaped (the mean size 6–8 nm) and had a narrow particle-size distribution. |
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