Recent Advances in Facile Synthesis of Bimetallic Nanostructures: An Overview

Figure 17

TEM micrographs of (a) CoPt hollow spheres and (b) a single hollow sphere showing that it is comprised of smaller particles; (c) elemental mapping data (Co and Pt) for the sphere in (b); TEM micrographs of (d) the Co nanoparticle template generated in situ and CoPt samples taken after reaction times of (e) 1 min and (f) 5 min. The hollow structures remain stable after heating to 300°C on a TEM grid (g). (Adapted with permission from [168]. Copyright 2005 American Chemical Society.)