Eom reported that the galvanic
current of Al that is electrically connected to carbon is 1.5
times higher than that of the Al bulk state. Therefore, the
CNTs/Al composite will exhibit an enhanced hydrogen generation
rate due to galvanic corrosion between Al and CNT. It
was reported that CNT mixed with Sn-27 wt. % Al alloy powder,
synthesized using a high temperature and high pressure
method, showed beneficial effects on the hydrogen yield
compared with that of the alloy without CNT [19].