Solvent-surface interactions control the phase structure in laser-generated iron-gold core-shell nanoparticles.

ABSTRACT: This work highlights a strategy for the one-step synthesis of FeAu nanoparticles by the pulsed laser ablation of alloy targets in the presence of different solvents. This method allows particle generation without the use of additional chemicals; hence, solvent-metal interactions could be studied without cross effects from organic surface ligands. A detailed analysis of generated particles via transmission electron microscopy in combination with EDX elemental mapping could conclusively verify that the nature of the used solvent governs the internal phase structure of the formed nanoparticles. In the presence of acetone or methyl methacrylate, a gold shell covering a non-oxidized iron core was formed, whereas in aqueous media, an Au core with an Fe3O4 shell was generated. This core-shell mor

SUBMITTER: Wagener P 

PROVIDER: S-EPMC4804215 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature