Poly(vinylpyrrolidone) stabilized aluminum nanoparticles obtained by the reaction of SiCl < inf > 4 < /inf > with LiAlH < inf > 4 < /inf >

Abstract

Isolation and stabilization of Al nanoparticles has been possible by the room temperature reaction between SiCl4 and LiAlH4 in the presence of poly(vinylpyrrolidone) (PVP) under sonication. The present investigation explained that the Al from LiAlH4 produced Al nanoparticles while SiCl4 was converted to hydrosilanes. The formation of Al nanoparticles from this reaction was established by thorough characterization using PXRD patterns, 27Al MAS-NMR spectra and HRTEM micrographs. The isolation of Al nanoparticles from this reaction clearly explained the products formed in this reaction.