Akademik Veri Yönetim Sistemi
14th INTERNATIONAL CONFERENCE ON ENGINEERING & NATURAL SCIENCES, Sivas, Türkiye, 18 - 19 Temmuz 2022, cilt.0, ss.527-531
In the last century, hydrogen has become very popular due to its high efficiency energy
conversion by fuel cells. Al hydrolysis with alkaline solution provides fast and safe hydrogen
production. It is possible to use Al alloys as an energy source by hydrogen gas generation
from hydrolysis reactions. However, Al tends to be oxidized by Al-water reactions, resulting
in an oxide film on the surface of Al metals, which negatively affects the hydrogen generation
performance. Therefore, several different processes can be used to reduce the negative effect
of the oxide film on the hydrogen generation performance. Especially, alloying of some
elements with Aluminum (Al) provides a good activity for hydrogen gas generation. In this
study, Pure Al (99.99%) and metallic Boron (B) (99.5%) element are used for casting Al-B
alloys. Binary Al-wt.%0.1 B and Al-wt.%0.3 B alloys are obtained by adding of B element to
Pure Al. Hydrogen gas is obtained from the reaction of Al and Al-B alloys with 5M-NaOH
solution is measured with the help of a flow-meter. The gas evolution rate (GR) of each
sample is calculated at 85oC solution temperature. Compared to pure Al, faster flow occurred
in B added alloys. These results are in agreement with the hydrogen gas evolution rates. GR
value of the pure Al sample is changed from 114.42 ml min-1 cm-2 to 122.53 ml min-1 cm-2
with Al-B alloying effect. The results show that B element can be used at a certain rate to
increase the GR value of aluminum in alkaline media.