Glance on Advancements and Innovations in Green Hydrogen Production Technologies

Hydrogen is being employed for more than only the typical industrial processes that involve creating ammonia, methanol, and refined petroleum. In recent years, there has been an increase in interest in the large-scale adoption of renewable energy-based power plants, as well as industrial and transportation uses, with a focus on manufacturing green hydrogen via the electrolysis process. Water electrolysis stands as a fundamental technique, involving the electrical decomposition of water into hydrogen and oxygen. Recent advances in alkaline water electrolysis have yielded impressive results, with energy efficiencies exceeding 70%. The photoelectrochemical water electrolysis, characterized by its proton-conductive membrane, demonstrates remarkable promise, boasting efficiency levels of up to 80%. Solid oxide cells represent a high-temperature option for hydrogen production, showcasing efficiencies above 70%. The burgeoning fields of photocatalytic and photoelectrochemical water splitting harness solar energy to drive the hydrogen evolution reaction. The results reveal that these technologies have achieved solar-to-hydrogen conversion efficiencies of up to 18%. These diverse approaches offer versatile solutions for green hydrogen production, vital for decarburization efforts. They address the need for sustainable, environmentally friendly, and secure energy sources, aligning with economic, environmental, and social considerations. As continue to advance these methodologies, hydrogen's role in our energy landscape grows, promising a cleaner and more sustainable future.