This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1021/jp9076307 in citations.
Determination of the Stability Constant of the Intermediate Complex during the Synthesis of Au Nanoparticles Using Arous Halide
Determination of the Stability Constant of the Intermediate Complex during the Synthesis of Au Nanoparticles Using Arous Halide
Little is known about the chemical equilibrium formed between the micellar complex of oleylamine and aurous halide during the synthesis of Au nanoparticles employing an Au(I) precursor In this paper, we determine for the first time the stability constant of the intermediate oleylamine/Au complex dur...
Saved in:
Personal Name(s): | Kisner, A. |
---|---|
Lenk, S. / Mayer, D. / Mourzina, Y. / Offenhäusser, A. | |
Contributing Institute: |
Institut für Bio- und Nanosysteme - Bioelektronik; IBN-2 JARA-FIT; JARA-FIT |
Published in: |
The @journal of physical chemistry |
Imprint: |
Washington, DC
Soc.
2009
|
Physical Description: |
20143- 20147 |
DOI: |
10.1021/jp9076307 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Journal of Physical Chemistry C
113 |
Subject (ZB): | |
Publikationsportal JuSER |
Little is known about the chemical equilibrium formed between the micellar complex of oleylamine and aurous halide during the synthesis of Au nanoparticles employing an Au(I) precursor In this paper, we determine for the first time the stability constant of the intermediate oleylamine/Au complex during the first stages of the reaction that produces Au nanoparticles using an amine compound as a reducing agent. We found that the intermediate complex has two stability constants that were dependent on the concentration of AuCl. These results were supported by Fourier transform infrared and mass spectroscopy analysis, which indicated that an unstable secondary amine was produced during the oxidation of oleylamine and reduction of Au(I). Our findings demonstrate that the reduction of Au(I) species promotes substeps of structural changes in the oleylamine molecule. We anticipate our assays to be a starting point for a more comprehensive understanding of the synthesis of Au nanoparticles based on a templateless approach employing amines and a Au(I) precursor. |