A groundbreaking technology has been developed to address the limitations of current catalyst electrodes, resulting in the production of green hydrogen on a large scale and at a relatively low cost. Led by Professor Han Gi Chae and Professor Jong-Beom Baek at UNIST, in collaboration with Professor Kafer T. Tavuz at KAUST, a scalable manufacturing process for ruthenium surface-embedded fabric electrocatalysts (Ru-SFECs) has been established. The Ru-SFECs demonstrate excellent catalytic activity and stability towards the hydrogen evolution reaction, with a low overpotential and minimal increase after 10,000 cycles, surpassing commercial Pt/C catalysts. By integrating ruthenium into carbon fiber electrodes, the team achieved a cost-effective solution with 100 times longer lifespan than traditional platinum-based catalysts. This innovative approach not only enhances stability and efficiency but also reduces manufacturing costs significantly. The developed technology, published in the Journal of the American Chemical Society, showcases the potential of carbon fiber-based electrocatalytic electrodes in revolutionizing hydrogen production. The findings emphasize the importance of self-supporting catalysts for sustainable and efficient electrochemical reactions, offering a promising solution for future applications.