Synthesis of GeFe_1.4 Nanoparticles Using the Transformation of Iron Trisoxalategermanium Metal Coordination Nanopolymers by Solid Phase Reduction

Abstract

In this communication, we demonstrate the novel preparation of alloy metal nanoparticles using a nanometer-sized metal coordination polymer (MCNP) as a precursor. The presented method works effectively for the construction of an uncommon alloy nanoparticle such as a IV semiconductor-transition metal alloy. Iron trisoxalategermanium MCNPs stabilized by stealylamine (SA) were newly synthesized in reverse micelle technique, and Ge-ox-Fe-SA was successfully transformed into GeFe_1.4 alloy metal nanoparticles by a gas phase reduction of metal sites under H₂, accompanied by the removal of the bridging oxalate ligands. The prepared GeFe_1.4 nanoparticles exhibited unique ferromagnetic behavior.