Facile solid-state synthesis of oxidation-resistant metal nanoparticles at ambient conditions
| Autor: | Kyu Hyung Lee, Chung Man Kim, Dohyun Nam, Kyungtae Kim, Byeongno Lee, Ju Hee Lee, Myung-Hwa Jung, Nam Hwi Hur, Hyuk Joon Jung |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Hydrazine Oxide Intermetallic chemistry.chemical_element Nanoparticle Coinage metals 02 engineering and technology General Chemistry Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Copper 0104 chemical sciences Metal chemistry.chemical_compound chemistry Chemical engineering visual_art visual_art.visual_art_medium General Materials Science 0210 nano-technology |
| Zdroj: | Solid State Sciences. 79:38-47 |
| ISSN: | 1293-2558 |
| DOI: | 10.1016/j.solidstatesciences.2018.03.008 |
| Popis: | A simple and scalable method for the synthesis of metal nanoparticles in the solid-state was developed, which can produce nanoparticles in the absence of solvents. Nanoparticles of coinage metals were synthesized by grinding solid hydrazine and the metal precursors in their acetates and oxides at 25 °C. The silver and gold acetates converted completely within 6 min into Ag and Au nanoparticles, respectively, while complete conversion of the copper acetate to the Cu sub-micrometer particles took about 2 h. Metal oxide precursors were also converted into metal nanoparticles by grinding alone. The resulting particles exhibit distinctive crystalline lattice fringes, indicating the formation of highly crystalline phases. The Cu sub-micrometer particles are better resistant to oxidation and exhibit higher conductivity compared to conventional Cu nanoparticles. This solid-state method was also applied for the synthesis of platinum group metals and intermetallic Cu3Au, which can be further extended to synthesize other metal nanoparticles. |
| Databáze: | OpenAIRE |
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