Capping and passivation of aluminum nanoparticles using alkyl-substituted epoxides

We report here on the synthesis and passivation of small (20-30 nm) aluminum nanoparticles using alkyl-substituted epoxides as capping agents. FTIR and 13C NMR spectroscopy indicate that the epoxides polymerize to form a polyether cap on the surfaces of the aluminum nanoparticles. Nanoparticles capp...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 25(2009), 16 vom: 18. Aug., Seite 8883-7
1. Verfasser: Chung, Stephen W (VerfasserIn)
Weitere Verfasser: Guliants, Elena A, Bunker, Christopher E, Hammerstroem, Douglas W, Deng, Yong, Burgers, Mark A, Jelliss, Paul A, Buckner, Steven W
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a We report here on the synthesis and passivation of small (20-30 nm) aluminum nanoparticles using alkyl-substituted epoxides as capping agents. FTIR and 13C NMR spectroscopy indicate that the epoxides polymerize to form a polyether cap on the surfaces of the aluminum nanoparticles. Nanoparticles capped with epoxyhexane and epoxydodecane are stable in air, but particles capped with epoxyisobutane are pyrophoric. TEM images show spherical Al particles. Powder X-ray diffraction shows the presence of crystalline Al. Titrimetric analysis of the core-shell nanostructures in air reveals that 96% of the total aluminum present is active (unoxidized) aluminum 
650 4 |a Journal Article 
700 1 |a Guliants, Elena A  |e verfasserin  |4 aut 
700 1 |a Bunker, Christopher E  |e verfasserin  |4 aut 
700 1 |a Hammerstroem, Douglas W  |e verfasserin  |4 aut 
700 1 |a Deng, Yong  |e verfasserin  |4 aut 
700 1 |a Burgers, Mark A  |e verfasserin  |4 aut 
700 1 |a Jelliss, Paul A  |e verfasserin  |4 aut 
700 1 |a Buckner, Steven W  |e verfasserin  |4 aut 
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