Wastewater Electrolysis for Hydrogen Production

Due to its highest gravimetric energy density, H 2 has been regarded as the preferred clean-energy carrier, with potentially environmentally-friendly production through the solar-assisted WS. Since human activities generate enormous amounts of WW, H 2 production from this new resource has gained attention as an emergent technology. This paper addresses the most relevant and current aspects of H 2 production from WWEL, and electricity generation from RES . In this sense, the state of art of H 2 production, especially from WS, is presented here, as well as the main approaches to electricity generation from RES, with the greatest potential for viability. A new approach on this matter, which is part of the work that is being developed by the authors of this study, was also herein presented.