Han-Pu Liang, Hui-Min Zhang, Jin-Song Hu, Yu-Guo Guo, Li-Jun Wan,* Chun-Li Bai*

We described a facile, efficient and economical route to the large-scale synthesis of Pt hollow nanospheres, which can be simply prepared at room temperature in a homogeneous solution with Co nanoparticles as sacrificial templates. The method presented here is more cost-effective than previous methods. The Pt hollow nanospheres were characterized by TEM, SEM, electron diffraction, EDX and electrochemical measurements. The incomplete and porous shells of the Pt hollow nanospheres have a higher surface area and therefore exhibit enhanced electrocatalytic performance in methanol oxidation.

Angew. Chem. Int. Ed. 2004, 43, 1540.