Size control and growth process of alkylamine-stabilized platinum nanocrystals : a comparison between the phase transfer and reverse micelles methods

Alkylamine-stabilized platinum nanoparticles are synthesized either by the phase-transfer method or in reverse micelles. The phase-transfer method produces nanocrystals that are quite spherical whereas the synthesis in reverse micelles generates a large number of wormlike structures. An alkylamine i...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 22(2006), 10 vom: 09. Mai, Seite 4863-8
1. Verfasser: Wikander, Kjell (VerfasserIn)
Weitere Verfasser: Petit, Christophe, Holmberg, Krister, Pileni, Marie-Paule
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a Alkylamine-stabilized platinum nanoparticles are synthesized either by the phase-transfer method or in reverse micelles. The phase-transfer method produces nanocrystals that are quite spherical whereas the synthesis in reverse micelles generates a large number of wormlike structures. An alkylamine is used as a stabilizing agent to prevent nanoparticle coalescence, and it is shown that there is an inverse relationship between the alkylamine chain length and the platinum nanoparticle diameter. By comparing alkylamine and alkylthiol analogues, it is found that the integrity of the different crystallites depends on the strength of the interaction between the stabilizing agent and the platinum nanocrystals. The results obtained and the comparison made between the two synthesis methods improve the understanding of the growth mechanisms of platinum nanocrystals in disperse media 
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700 1 |a Petit, Christophe  |e verfasserin  |4 aut 
700 1 |a Holmberg, Krister  |e verfasserin  |4 aut 
700 1 |a Pileni, Marie-Paule  |e verfasserin  |4 aut 
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