title: Metal redox processes for the controlled synthesis of metal alloy nanoparticles.
abstract: Nanocrystalline metals have received widespread interest and found various applications owing to their magnetic and catalytic properties and in energy-related fields. A flexible approach for the growth of nanoalloys with controlled properties and well-defined structures on the atomic scale is thus greatly desired. A new synthetic method that avoids incompatible reduction potentials and rates would be critical to grow metal nanostructures with high purities and the desired stoichiometries. A metal-redox strategy that employs spontaneous oxidation/reduction reactions to grow nanocrystalline alloys using molecular-scale zerovalent metal precursors is now described. The selection of suitable zerovalent metal species allows for thermodynamic control of the compositional stoichiometry during the temperature-dependent formation of the metal alloy nanoparticles. A practical and scalable strategy for nanoalloy growth that can potentially produce key metal components of superior metallurgical quality for catalytic and magnetic systems has thus been developed.
authors: Department of Chemistry, University of Kansas, Lawrence, KS 66045 (USA).
authors: Alec
authors: A
authors: Kirkeminde
authors: Stan
authors: S
authors: Spurlin
authors: Laura
authors: L
authors: Draxler-Sixta
authors: Jamie
authors: J
authors: Cooper
authors: Shenqiang
authors: S
authors: Ren
keywords: alloys; magnetic properties; redox chemistry; stoichiometry