Ligand assisted digestion and formation of monodisperse FeCoS2 nanocrystals
| Autor: | Mahima Makkar, Amitha Shetty, Ranjani Viswanatha, Avijit Saha |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Ligand
Dispersity food and beverages General Physics and Astronomy Ripening 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Oleic acid chemistry Nanocrystal Chemical engineering Oleylamine Organic chemistry Physical and Theoretical Chemistry 0210 nano-technology Digestion Bimetallic strip |
| Zdroj: | Physical chemistry chemical physics : PCCP. 18(37) |
| ISSN: | 1463-9084 |
| Popis: | Digestive ripening of bimetallic magnetic nanocrystals from uniform microsheets to spherical nanocrystals was observed in FeCoS2 nanocrystals leading to the formation of monodisperse nanocrystals. Earlier examples of digestive ripening are associated with the transformation of polydisperse particles to monodisperse particles deriving energetic stabilization from the monodispersity. However, it is interesting to note that in the current case, not only did we observe a transformation from uniform sheets to spherical particles but we also observed it in the absence of thiol, the most commonly used digestive ripening agent. We have then studied the effect of ligands such as oleic acid and oleylamine responsible for this ripening process. Long chain acids were found to be majorly responsible for digestive ripening while the amines assist in the formation of microsheets. A plausible mechanism has then been proposed. |
| Databáze: | OpenAIRE |
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