Synthesis of Au nanoparticles using magnetite cored polyamine dendrimer template and its green catalysis for selective oxidation of alcohols
| Autor: | Rajmohan Rangasamy, Lakshmi Kannappan, Prathibha Edwin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering Succinic anhydride Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Mechanics of Materials Colloidal gold Dendrimer Alcohol oxidation Amide Polymer chemistry General Materials Science 0210 nano-technology Magnetite |
| Zdroj: | Materials Letters. 301:130257 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2021.130257 |
| Popis: | Magnetite cored PAMAM G3 dendrimer was synthesized and amide groups were reduced using LAH to afford amine groups enriched polyamine dendrimer; subsequently surface was grafted with succinic anhydride to attain carboxylic acid terminated polyamine dendrimer on magnetite core. This nanohybrid material was used as template to synthesize Au nanoparticle via sequestering metal ion followed by chemical reduction process. Analytical data evidenced that size and shape-controlled ultrafine gold nanoparticles of 1–2 nm size was achieved using this lower generation dendrimer template. Magnetite cored polyamine G3 dendrimer encapsulated Au nanoparticles was exploited as a green and sustainable catalyst for the selective oxidation of alcohol under mild reaction conditions and effectively reused for five catalytic cycles. |
| Databáze: | OpenAIRE |
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