Solubility of ligated gold nanoparticles at room temperature in various hydrocarbon solvents
dc.contributor.author | Lohman, Brandon | |
dc.date.accessioned | 2009-05-14T18:19:31Z | |
dc.date.available | 2009-05-14T18:19:31Z | |
dc.date.graduationmonth | May | en |
dc.date.issued | 2009-05-14T18:19:31Z | |
dc.date.published | 2009 | en |
dc.description.abstract | Gold Nanoparticles (AuNP) 5nm in diameter, ligated with n-dodecanethiol, were dissolved in various hydrocarbon solvents including normal alkanes from n-hexane to n-hexadecane as well as two aromatics, toluene and para-xylene. These solutions were centrifuged at room temperature under 12000g acceleration for one hour to separate larger clusters from AuNP monomers dissolved in the supernatants. UV-Vis absorbance data were taken on the supernatants and were then converted to concentrations in moles of Au atoms/L. These concentrations correspond to the saturated concentration of dissolved AuNP monomers in equilibrium with a precipitate at room temperature. For the alkanes, we discovered a non-monotonic functionality of saturated concentration vs. solvent chain length with a maximum corresponding to n-dodecane. This agreed with predictions made of the ligands’ interactions with the solvents based on comparisons of solubility parameters where the n-dodecanethiol ligands were approximated as n-dodecane. The concentrations of AuNPs when dissolved in the aromatics did not follow the trend predicted by solubility parameters. | en |
dc.description.advisor | Christopher M. Sorensen | en |
dc.description.degree | Master of Science | en |
dc.description.department | Department of Physics | en |
dc.description.level | Masters | en |
dc.identifier.uri | http://hdl.handle.net/2097/1437 | |
dc.language.iso | en_US | en |
dc.publisher | Kansas State University | en |
dc.subject | Nanoparticle | en |
dc.subject | Solubility | en |
dc.subject | Hydrocarbon | en |
dc.subject | Solvent | en |
dc.subject | Gold | en |
dc.subject | Alkane | en |
dc.subject.umi | Chemistry, Physical (0494) | en |
dc.subject.umi | Physics, Condensed Matter (0611) | en |
dc.title | Solubility of ligated gold nanoparticles at room temperature in various hydrocarbon solvents | en |
dc.type | Thesis | en |