Research Article

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

Figure 8

Fourier transform (FT) spectra of (a) Pd powder standard, (b) non-surface-modified 5 wt% Pd-doped MWCNTs after H2 reduction at 433 K for 6 h, (c) fresh non-surface-modified 5 wt% Pd-doped MWCNTs, (d) surface-modified 5 wt% Pd-doped MWCNTs after H2 reduction at 433 K for 6 h, and (e) fresh surface-modified 5 wt% Pd-doped MWCNTs. The best fitting of the EXAFS spectra are expressed by the circle lines.
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