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

<table>FE-SEM/EDS measurement of (a) the surface of MWCNTs synthesized using Co/Ni catalyst precursors with metallic K at <i>T</i> = 503–623 K for 12 h and (b) KCl solid residues formed after drying overnight in the washing liquids of MWCNTs purification process.</table>

Journal of Nanomaterials

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Figure 2

Figure 2: Characterization and Hydrogen Storage of Surface-Modified Multiwalled Carbon Nanotubes for Fuel Cell Application 