Matter of age : growing anisotropic gold nanocrystals in organic media
We investigated the influence of the reduction state of gold ions on the growth of gold nanocrystals in N,N-dimethyl formamide (DMF). While freshly prepared solutions of AuCl3 produce spherical nanocrystals, aged precursor solutions containing mainly Au+ ions and Au(0) atoms lead to various branched...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2008-01, Vol.10 (7), p.951-956 |
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| container_title | Physical chemistry chemical physics : PCCP |
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| creator | GAIKWAD, Anil V VERSCHUREN, Peter KINGE, Sachin ROTHENBERG, Gadi EISERT, Erika |
| description | We investigated the influence of the reduction state of gold ions on the growth of gold nanocrystals in N,N-dimethyl formamide (DMF). While freshly prepared solutions of AuCl3 produce spherical nanocrystals, aged precursor solutions containing mainly Au+ ions and Au(0) atoms lead to various branched nanoparticles. Furthermore, we show that also the amount of the reducing and stabilisation agent tetra-n-octylammonium formate (TOAF) plays a decisive role on the shape of the nanocrystals, allowing us to grow triangular and cubic nanoparticles. |
| doi_str_mv | 10.1039/b715112h |
| format | Article |
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While freshly prepared solutions of AuCl3 produce spherical nanocrystals, aged precursor solutions containing mainly Au+ ions and Au(0) atoms lead to various branched nanoparticles. Furthermore, we show that also the amount of the reducing and stabilisation agent tetra-n-octylammonium formate (TOAF) plays a decisive role on the shape of the nanocrystals, allowing us to grow triangular and cubic nanoparticles.</description><identifier>ISSN: 1463-9076</identifier><identifier>EISSN: 1463-9084</identifier><identifier>DOI: 10.1039/b715112h</identifier><identifier>PMID: 18259633</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Anisotropy ; Chemistry ; Colloidal state and disperse state ; Crystallization ; Dimethylformamide ; Exact sciences and technology ; Formamides - chemistry ; Formates - chemistry ; General and physical chemistry ; Gold - chemistry ; Metal Nanoparticles - chemistry ; Metal Nanoparticles - ultrastructure ; Particle Size ; Physical and chemical studies. Granulometry. 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While freshly prepared solutions of AuCl3 produce spherical nanocrystals, aged precursor solutions containing mainly Au+ ions and Au(0) atoms lead to various branched nanoparticles. Furthermore, we show that also the amount of the reducing and stabilisation agent tetra-n-octylammonium formate (TOAF) plays a decisive role on the shape of the nanocrystals, allowing us to grow triangular and cubic nanoparticles.</description><subject>Anisotropy</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Crystallization</subject><subject>Dimethylformamide</subject><subject>Exact sciences and technology</subject><subject>Formamides - chemistry</subject><subject>Formates - chemistry</subject><subject>General and physical chemistry</subject><subject>Gold - chemistry</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Metal Nanoparticles - ultrastructure</subject><subject>Particle Size</subject><subject>Physical and chemical studies. 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| ispartof | Physical chemistry chemical physics : PCCP, 2008-01, Vol.10 (7), p.951-956 |
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| source | MEDLINE; Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Anisotropy Chemistry Colloidal state and disperse state Crystallization Dimethylformamide Exact sciences and technology Formamides - chemistry Formates - chemistry General and physical chemistry Gold - chemistry Metal Nanoparticles - chemistry Metal Nanoparticles - ultrastructure Particle Size Physical and chemical studies. Granulometry. Electrokinetic phenomena Quaternary Ammonium Compounds - chemistry Surface Properties |
| title | Matter of age : growing anisotropic gold nanocrystals in organic media |
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