Room-temperature liquid-phase synthesis of aluminium nanoparticles

Aluminium nanoparticles, Al(0), are obtained via liquid-phase synthesis at 25 °C. Accordingly, AlBr 3 is reduced by lithium naphthalenide ([LiNaph]) in toluene in the presence of N , N , N , N -tetramethylethylenediamine (TMEDA). The Al(0) nanoparticles are small (5.6 ± 1.5 nm) and highly crystallin...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2022-07, Vol.58 (54), p.7499-752
Main Authors: Riegsinger, Sven, Popescu, Radian, Gerthsen, Dagmar, Feldmann, Claus
Format: Article
Language:English
Subjects:
Aluminum
Colloid chemistry
Liquid phases
Lithium
Nanoparticles
Resonance absorption
Room temperature
Synthesis
Toluene
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Summary:Aluminium nanoparticles, Al(0), are obtained via liquid-phase synthesis at 25 °C. Accordingly, AlBr 3 is reduced by lithium naphthalenide ([LiNaph]) in toluene in the presence of N , N , N , N -tetramethylethylenediamine (TMEDA). The Al(0) nanoparticles are small (5.6 ± 1.5 nm) and highly crystalline. A light yellow colour and absorption at 250-350 nm are related to the plasmon-resonance absorption. Due to TMEDA functionalization, the Al(0) nanoparticles are colloidally and chemically stable, but show high reactivity after TMEDA removal. Al(0) nanoparticles (5.6 ± 1.5 nm) are obtained via liquid-phase synthesis by reduction of AlBr 3 with [LiNaph] and with TMEDA to control particle size, colloidal stability, and reactivity.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc01846b