Fast hydrolysis and hydrogen generation on Al-Bi alloys and Al-Bi-C composites synthesized by high-pressure torsion

Al-Bi alloys and Al-Bi-C composites with different compositions were synthesized by high-pressure torsion (HPT) and their hydrogen generation behavior via hydrolysis was investigated in contact with pure water. Bi was added to Al to enhance the effect of nano-galvanic cells and to promote the pitting corrosion, and C in the form of graphite was added to Al to accelerate the fragmentation of the composite and to increase the total active surface...