Effect of Titanium Peroxide on Hydrogen Generation from Magnesium Hydride

In this paper, the effect of titanium peroxide on hydrolysis of magnesium hydride powder has been studied. Titanium peroxide has been chosen as the catalyst. Magnesium is an earth metal and the eighth most abundant element in the Earth s crust. Therefore, among the various light metals that could be used to store hydrogen as a hydride, magnesium is one of the most promising because of its low cost, ready availability, abundance and low toxicity. However, there is a need to high temperatures above 320℃ to decompose and release hydrogen accumulated. In contrast, hydrolysis reaction is stable in water under room temperature but only a small percentage of the theoretical amount of H2 is liberated due to the formation of Mg(OH)2. Here we added titanium peroxide as a catalyst and studied the effect on hydrogen generation changing the experimental condition. Utilizing titanium peroxide as the catalyst accelerates hydrogen generation by preventing formation of passivation layer. The combination of the three operating conditions (the weight of MgH2, concentration of titanium peroxide) influence the amount of hydrogen generation.

کلیدواژه ها:

Hydrolysis ، Titanium peroxide ، Hydrogen ، Magnesium Hydride