TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The process comprises: prior to the addition of the fuel solution over the catalyst, stabilizing the complex hydride in the fuel solution comprising the hydroxide; extracting from the semi continuous reactor the hydrogen stream obtained by hydrolysis and directing it to the washing means; and directing the hydrogen stream obtained by hydrolysis to a fuel cell continuously and at constant rate. The cobalt boride catalyst is used in a process of hydrolysis of complex hydrides comprising extracting from the semi continuous reactor the cobalt boride catalyst used in the hydrolysis and washing it at least twice with purified water, immersing the catalyst in a solution comprising the complex hydride used at a weight ratio of 8-14 for 5-10 minutes, and washing again the catalyst in purified water at least once. Preferred Components: The complex hydride is present in the fuel solution at a concentration of 9-19 wt.%, the addition of the fuel solution over the catalyst is carried out at a rate of 2.5-4 ml/min, the excess amount of catalyst is 458-675 mg, and the temperature is 47-60 degrees C. The complex hydride is sodium borohydride. The solution that acts as fuel with which the complex hydride is stabilized is sodium hydroxide. The solution is sodium hydroxide at 4.5 wt.%. The cobalt boride catalyst is supported on nickel foam. The storage tank and the unrefrigerated semi continuous reactor are built with plastic materials. The semi continuous reactor comprises a thermocouple. EXAMPLE - The supported cobalt boride catalyst was prepared by reduction of anhydrous cobalt chloride in aqueous medium by sodium boro hydride stabilized in sodium hydroxide. The support chosen for the catalyst was nickel foam. All solutions were prepared using Milli Q (RTM: Purified water). The support were cut and weighed. Then it was sonicated for 10 minutes in ethanol and 10 minutes in acetone for cleaning. Then it was immersed into 10% hydrochloride for 10 minutes and washed with purified water. The support thus clean was immersed in a anhydrous cobalt chloride solution (30 wt.%) for 10 seconds and then for another 10 seconds in a boron hydride sulfide (BHS) 20% solution in 1% sodium hydroxide cooled in an ice bath. Then the product was washed several times to give cobalt boride catalyst supported. To produce hydrogen (1.16 l/min) the BHS solution stabilized with a concentration of 19 wt.%. The solution has a maximum gravimetric hydrogen storage capacity of 4%. To work in conditions of total conversion of BHS, an excess of cobalt boride supported on nickel foam (675 mg catalyst) was added and to optimize the storage capacity of hydrogen a fuel addition rate of 2.5 ml/minute. Under these conditions a total conversion of the 90% BHS was achieved and a gravimetric storage capacity of hydrogen of 3.5%. The obtained catalyst was washed with purified water several times and then was immersed in a solution of BHS (9 wt.%) in sodium hydroxide (4.5 wt.%) for 15 minutes. After that time, the catalyst was washed again several times and reuse for another process.