| Autor: |
Maryam Zarei-Chaleshtori, Brenda Torres, Carmen Rocha, José T. Elizalde-Galindo, Sergio Flores, Abel Hurtado-Macias, Luis Ortiz-Jordan, Manuel Ramos, Russell R. Chianelli |
| Jazyk: |
angličtina |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Materials, Vol 6, Iss 1, Pp 198-205 (2013) |
| Druh dokumentu: |
article |
| ISSN: |
1996-1944 |
| DOI: |
10.3390/ma6010198 |
| Popis: |
The chemical synthesis of gold nanoparticles (NP) by using gold (III) chloride trihydrate (HAuCl∙3H2O) and sodium citrate as a reducing agent in aqueous conditions at 100 °C is presented here. Gold nanoparticles areformed by a galvanic replacement mechanism as described by Lee and Messiel. Morphology of gold-NP was analyzed by way of high-resolution transmission electron microscopy; results indicate a six-fold icosahedral symmetry with an average size distribution of 22 nm. In order to understand the mechanical behaviors, like hardness and elastic moduli, gold-NP were subjected to nanoindentation measurements—obtaining a hardness value of 1.72 GPa and elastic modulus of 100 GPa in a 3–5 nm of displacement at the nanoparticle’s surface. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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