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A halogen-free synthesis of gold nanoparticles using gold(III) oxide
- Source :
- Journal of Nanoparticle Research
- Publisher :
- Springer Nature
-
Abstract
- Gold nanoparticles are one of the most used nanomaterials. They are usually synthesized by the reduction of gold(III) chloride. However, the presence of halide ions in the reaction mixture is not always welcome. In some cases, these ions have detrimental influence on the morphology and structure of resulting nanoparticles. Here, we present a simple and halogen-free procedure to prepare gold nanoparticles by reduction of gold(III) oxide in neat oleylamine. The method provides the particles with an average size below 10 nm and dispersity of tens of percent. The process of nanoparticle formation was monitored using UV–Vis spectroscopy. The structure and chemical composition of the nanoparticles was determined by SEM, XPS and EDX. We also proposed the mechanism of reduction of gold(III) oxide based on MS, IR and NMR data. Importantly, the synthetic protocol is general and applicable for the preparation of other coinage metal nanoparticles from the corresponding metal oxides. For instance, we demonstrated that the absence of halogen enables efficient alloying of metals when preparing gold–silver bimetallic nanoparticles. Electronic supplementary material The online version of this article (doi:10.1007/s11051-016-3576-x) contains supplementary material, which is available to authorized users.
- Subjects :
- Oleylamine
Materials science
Chemistry(all)
Inorganic chemistry
Oxide
Nanoparticle
Bioengineering
02 engineering and technology
010402 general chemistry
01 natural sciences
Nanomaterials
Metal
chemistry.chemical_compound
Materials Science(all)
Modelling and Simulation
Gold nanoparticles
General Materials Science
Bimetallic strip
Bimetallic nanoparticles
General Chemistry
Gold(III) oxide
021001 nanoscience & nanotechnology
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
0104 chemical sciences
chemistry
Colloidal gold
Modeling and Simulation
visual_art
visual_art.visual_art_medium
0210 nano-technology
Research Paper
Subjects
Details
- Language :
- English
- ISSN :
- 13880764
- Volume :
- 18
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Journal of Nanoparticle Research
- Accession number :
- edsair.doi.dedup.....50140d54575f8bcb2a6cd2d412c57aab
- Full Text :
- https://doi.org/10.1007/s11051-016-3576-x