Patent ID: 9550170
Date: 2017-01-24
CPC Classifications: B01J,B22F,B32B,B82Y,C25B,H01M,Y02E,Y10S

Claim:
1. A method for producing atomically ordered core-shell nanoparticles, the method comprising: dissolving a first metal salt in ethanol; heating the combination of the first metal salt and the ethanol to a first temperature sufficient to partially reduce first metal ions of the first metal salt; adding an alkaline solution, to further reduce the first metal ions, thereby causing precipitation of disordered nano article cores; annealing the disordered nanoparticle cores to form atomically ordered nanoparticle cores; combining the atomically ordered nanoparticle cores and a second metal salt with ethanol; heating the combination of the atomically ordered nanoparticle cores, second metal salt, and the ethanol to a second temperature high enough to reduce second metal ions of the second metal salt onto the atomically ordered nanoparticle cores and form a conformal shell of the second metal around the atomically ordered nanoparticle cores.