Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA]
Abstract We report on gold clusters with around 62 gold atoms and a diameter of 1.15±0.10 nm. Dispersions of the clusters are long‐term stable for two years at ambient conditions. The synthesis was performed by mixing tetrachloroauric acid (HAuCl4 ⋅ 3 H2O) with the ionic liquid 1‐ethyl‐3‐methylimida...
| Published in: | ChemistryOpen |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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Wiley-VCH
2024-02-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1002/open.202300106 |
| _version_ | 1851846485794095104 |
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| author | Jana Hildebrandt Prof. Dr. Andreas Taubert Prof. Dr. Andreas F. Thünemann |
| author_facet | Jana Hildebrandt Prof. Dr. Andreas Taubert Prof. Dr. Andreas F. Thünemann |
| author_sort | Jana Hildebrandt |
| collection | DOAJ |
| container_title | ChemistryOpen |
| description | Abstract We report on gold clusters with around 62 gold atoms and a diameter of 1.15±0.10 nm. Dispersions of the clusters are long‐term stable for two years at ambient conditions. The synthesis was performed by mixing tetrachloroauric acid (HAuCl4 ⋅ 3 H2O) with the ionic liquid 1‐ethyl‐3‐methylimidazolium dicyanamide ([Emim][DCA]) at temperatures of 20 to 80 °C. Characterization was performed with small‐angle X‐ray scattering (SAXS), UV‐Vis spectroscopy, and MALDI‐TOF mass spectrometry. A three‐stage model is proposed for the formation of the clusters, in which cluster growth from gold nuclei takes place according to the Lifshitz‐Slyozov‐Wagner (LSW) model followed by oriented attachment to form colloidal stable clusters. |
| format | Article |
| id | doaj-art-d32a94420bf84dbc8f54f3a1c8fa8eb3 |
| institution | Directory of Open Access Journals |
| issn | 2191-1363 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| spelling | doaj-art-d32a94420bf84dbc8f54f3a1c8fa8eb32025-08-19T22:26:09ZengWiley-VCHChemistryOpen2191-13632024-02-01132n/an/a10.1002/open.202300106Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA]Jana Hildebrandt0Prof. Dr. Andreas Taubert1Prof. Dr. Andreas F. Thünemann2Bundesanstalt für Materialforschung und -prüfung (BAM) Unter den Eichen 87 12205 Berlin GermanyInstitute of Chemistry University of Potsdam 14476 Potsdam GermanyBundesanstalt für Materialforschung und -prüfung (BAM) Unter den Eichen 87 12205 Berlin GermanyAbstract We report on gold clusters with around 62 gold atoms and a diameter of 1.15±0.10 nm. Dispersions of the clusters are long‐term stable for two years at ambient conditions. The synthesis was performed by mixing tetrachloroauric acid (HAuCl4 ⋅ 3 H2O) with the ionic liquid 1‐ethyl‐3‐methylimidazolium dicyanamide ([Emim][DCA]) at temperatures of 20 to 80 °C. Characterization was performed with small‐angle X‐ray scattering (SAXS), UV‐Vis spectroscopy, and MALDI‐TOF mass spectrometry. A three‐stage model is proposed for the formation of the clusters, in which cluster growth from gold nuclei takes place according to the Lifshitz‐Slyozov‐Wagner (LSW) model followed by oriented attachment to form colloidal stable clusters.https://doi.org/10.1002/open.202300106gold clusterionic liquidsmall-angle scatteringreference material |
| spellingShingle | Jana Hildebrandt Prof. Dr. Andreas Taubert Prof. Dr. Andreas F. Thünemann Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA] gold cluster ionic liquid small-angle scattering reference material |
| title | Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA] |
| title_full | Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA] |
| title_fullStr | Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA] |
| title_full_unstemmed | Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA] |
| title_short | Synthesis and Characterization of Ultra‐Small Gold Nanoparticles in the Ionic Liquid 1‐Ethyl‐3‐methylimidazolium Dicyanamide, [Emim][DCA] |
| title_sort | synthesis and characterization of ultra small gold nanoparticles in the ionic liquid 1 ethyl 3 methylimidazolium dicyanamide emim dca |
| topic | gold cluster ionic liquid small-angle scattering reference material |
| url | https://doi.org/10.1002/open.202300106 |
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