Characterization and Hydrogen Storage of Surface-Modified Multiwalled Carbon Nanotubes for Fuel Cell Application
Figure 5
(a) XANES of Co/Ni precursor residue samples (solid lines) compared with Co(0, II), Ni(0, II), or Pd(0, II) standards and (b) Fourier transform (FT) of the metallic Co, Ni, or Pd K-edge EXAFS of the MWCNTs synthesized using Co/Ni catalyst precursors at T = 603 K for 8–12 h. The best fitting of EXAFS spectra are expressed by the dotted and circled lines.
