Synthesis and electrocatalytic activity of platinum nanoparticle/carbon nanotube composites
| Autor: | Lada V. Yashina, E. V. Gerasimova, Serguei V. Savilov, M. P. Kochugaeva, M. N. Kirikova, M. E. Tamm, O. Yu. Ivanshina |
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| Rok vydání: | 2011 |
| Předmět: |
Nanocomposite
Materials science General Chemical Engineering Inorganic chemistry Metals and Alloys chemistry.chemical_element Carbon nanotube Platinum nanoparticles law.invention Catalysis Inorganic Chemistry Thermogravimetry chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Chemical engineering law Materials Chemistry Platinum Chloroplatinic acid |
| Zdroj: | Inorganic Materials. 47:618-625 |
| ISSN: | 1608-3172 0020-1685 |
| DOI: | 10.1134/s0020168511060112 |
| Popis: | Pt/CNT nanocomposite materials with an average platinum particle size of 3–5 nm and platinum content of 13–28 wt % have been prepared by reducing chloroplatinic acid, H2PtCl6, in the presence of conical carbon nanotubes. The effect of synthesis conditions on the average platinum particle size, total platinum content, and surface composition of the nanocomposites has been studied using X-ray photoelectron spectroscopy, IR spectroscopy, electron microscopy, X-ray diffraction, and thermogravimetry. The materials have been tested as catalysts for hydrogen oxidation and oxygen reduction. Their performance has been assessed by cyclic and steady-state voltammetric techniques. The structure and composition effects on the electrocatalytic properties of the nanocomposites are discussed. |
| Databáze: | OpenAIRE |
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