Characterization and Hydrogen Storage of Surface-Modified Multiwalled Carbon Nanotubes for Fuel Cell Application

Figure 6

(a) Nitrogen adsorption/desorption isotherms of non-surface-modified 5 wt% Pd-doped MWCNTs and (b) surface-modified 5 wt% Pd-doped MWCNTs, and (c) pore size distributions of non- and surface-modified 5 wt% Pd-doped MWCNTs samples.

(a)

(b)

(c)