Figure 1

Images of Pt-nanowires grown on a pristine gas diffusion layer (GDL).
(a,b) SEM images at two different magnifications. (c,d) TEM images of the Pt-nanowire superstructures formed on the pristine GDL surface.
Images of Pt-nanowires grown on a pristine gas diffusion layer (GDL).
(a,b) SEM images at two different magnifications. (c,d) TEM images of the Pt-nanowire superstructures formed on the pristine GDL surface.