Facile radiolytic synthesis of ruthenium nanoparticles on graphene oxide and carbon nanotubes
| Autor: | Jessika V. Rojas, M.C. Molina-Higgins, Carlos E. Castano, Miguel Toro-González |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Metal ions in aqueous solution Oxide Nanoparticle chemistry.chemical_element Nanotechnology 02 engineering and technology Carbon nanotube 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound X-ray photoelectron spectroscopy law General Materials Science Aqueous solution Graphene Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Ruthenium chemistry Chemical engineering Mechanics of Materials 0210 nano-technology |
| Zdroj: | Materials Science and Engineering: B. 205:28-35 |
| ISSN: | 0921-5107 |
| DOI: | 10.1016/j.mseb.2015.12.005 |
| Popis: | Ruthenium nanoparticles on pristine (MWCNT) and functionalized carbon nanotubes (f-MWCNT), and graphene oxide have been prepared through a facile, single step radiolytic method at room temperature, and ambient pressure. This synthesis process relies on the interaction of high energy gamma rays from a 60 Co source with the water in the aqueous solutions containing the Ru precursor, leading to the generation of highly reducing species that further reduce the Ru metal ions to zero valence state. Transmission electron microscopy and X-Ray diffraction revealed that the nanoparticles were homogeneously distributed on the surface of the supports with an average size of ∼2.5 nm. X-ray Photoelectron spectroscopy analysis showed that the interaction of the Ru nanoparticles with the supports occurred through oxygenated functionalities, creating metal-oxygen bonds. This method demonstrates to be a simple and clean approach to produce well dispersed nanoparticles on the aforementioned supports without the need of any hazardous chemical. |
| Databáze: | OpenAIRE |
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