UV-Induced Synthesis and Stabilization of Surfactant-Free Colloidal Pt Nanoparticles with Controlled Particle Size in Ethylene Glycol
| Autor: | Matthias Arenz, Tom Vosch, Jonathan Quinson, Laura Kacenauskaite, Sebastian Kunz, Hannibal M. Schultz, Jacob J. K. Kirkensgaard |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Nanoparticle 02 engineering and technology Thermal treatment 010402 general chemistry 021001 nanoscience & nanotechnology Platinum nanoparticles 01 natural sciences 0104 chemical sciences Biomaterials chemistry.chemical_compound Colloid chemistry Chemical engineering Materials Chemistry Organic chemistry Irradiation Particle size Pt nanoparticles 0210 nano-technology Ethylene glycol |
| Zdroj: | ChemNanoMat. 3:89-93 |
| ISSN: | 2199-692X |
| DOI: | 10.1002/cnma.201600313 |
| Popis: | Conventional temperature-induced polyol synthesis of platinum nanoparticles is a powerful and well-established method for the preparation of stable, surfactant-free platinum nanoparticles (Pt NPs) with controlled shape, size and size distribution. Recently we reported that exposure to daylight leads to the formation of Pt NPs from precursor solutions [1], suggesting that a parallel approach of UV-induced polyol synthesis could be cheaper and more widely applicable alternative. Here we report controlled size and size distribution of Pt NPs, prepared using UV irradiation instead for thermal treatment. Results demonstrate that, depending on the concentration of NaOH in the reaction mixture, the size of produced nanoparticles can vary between 1 to 5.8 nm. We also show, for the first time, how NaOH affects formation of organic side products, which alter PtNPs stability and demonstrate a method for the preparation of stable nanoparticle suspensions with an average particle size of 5.8 nm. |
| Databáze: | OpenAIRE |
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