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Updated: Sep 22, 2025
Facile Preparation of Ultrafine Aluminum Hydroxide Particles with or without Mesoporous MCM-41 in Ambient Environments
Published on: May 11, 2017
Room-temperature liquid-phase synthesis of aluminium nanoparticles
Sven Riegsinger1, Radian Popescu2, Dagmar Gerthsen2
1Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany. claus.feldmann@kit.edu.
Abstract:
Aluminium nanoparticles, Al(0), are obtained via liquid-phase synthesis at 25 °C. Accordingly, AlBr3 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.
