Hydrogen production in the electrolysis of water in Brazil, a review

Hydrogen is a promising fuel, can be obtained from different sources of raw materials, including water. This is a renewable and sustainable source, which can obtain a high hydrogen purity via electrolysis. Among the processes for obtaining hydrogen from the water, the electrolytic conversion is the best known, in which two electrodes are responsible for conducting electricity and production of this gas. However, to promote this segregation, some technological challenges must be overcome, as the efficiency of electrolyzers, efficiency and durability of the main fuel cells and the integration of the electrolysis systems for supply and energy, aiming to reduce production costs. The Brazil stands out worldwide with production of fuels obtained from renewable sources and also seeks to develop the hydrogen production through water electrolysis.