Activated Carbon Fiber Supported PtRu Hollow Nanospheres and PtRu Nanoparticles for Methanol Electrooxidation
Activated carbon Fiber supported PtRu hollow nanospheres have been prepared by a replacement reation in a homogeneous solution with cobalt nanoparticles as sacrificial templates. The morphology, elemental composition, structure and electrocatalytic properties of the PtRu hollow nanospheres have been investigated by transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and typical electrochemical methods, respectively. The results indicate that the ACF supported PtRu hollow nanospheres show a high activity and stability for electrocatalytic oxidation of methanol as compared to co-reduced solid PtRu nanoparticles. The reasons of the high electrocatalytic activity due to the high surface area resulted from the hollow nanosphere structure with porous shell.
Weiguo Pan, Jianxing Ren and Yongguang Li
H. X. Huang et al., "Activated Carbon Fiber Supported PtRu Hollow Nanospheres and PtRu Nanoparticles for Methanol Electrooxidation", Advanced Materials Research, Vols. 347-353, pp. 3641-3644, 2012