The increased environmental impacts resulting from the burning of fossil fuels have pressed the international community to seek clean and renewable energy sources. The consolidation of alternatives such as wind and solar energy have hampered the obstacles of low efficiency and inability to store. In this context, it ascended the energy chain commanded by hydrogen, the most abundant element of the planet. With similar efficiency to petroleum-based fuels, minimal environmental impact and a wide range of applications, efforts were strengthened for the "Hydrogen Age", in which hydrogen would replace petroleum as the planet's main energy vector. Through a thorough bibliographical review, this work seeks to present this technology, with the aim o...