South Korean researchers at the Korea Research Institute of Chemical Technology (KRICT) have made a significant breakthrough in eco-friendly hydrogen production by developing a cobalt-iron-based catalyst with cerium oxide for efficient ammonia decomposition. Ammonia (NH₃) is recognized for its high hydrogen storage capacity and transport efficiency, making it a promising carbon-free hydrogen carrier. However, the conventional high-temperature decomposition process using costly noble metal catalysts like ruthenium (Ru) poses challenges for large-scale hydrogen production. To address this, the research team integrated cerium oxide (CeO₂) into the cobalt-iron-based catalyst, enabling high ammonia decomposition efficiency at lower temperatures. The new catalyst achieved 81.9% conversion at 450°C, outperforming both non-noble metal and nickel-based catalysts. Moreover, long-term stability tests demonstrated the catalyst's structural integrity and efficiency even after prolonged operation at 550°C. By incorporating cerium oxide, the catalyst prevents particle agglomeration and enhances catalytic properties, accelerating the rate-determining step in ammonia decomposition. The research, supported by KRICT and the Korean Ministry of Trade, Industry & Energy, aims to advance low-temperature hydrogen production efficiency for commercialization by 2030. The ultimate goal is to foster a sustainable hydrogen economy driven by renewable energy sources. Dr. Su-Un Lee emphasized the catalyst's broad applications in ammonia-based hydrogen production, hydrogen power plants, fueling stations, and maritime industries. Dr. Yeong-Kuk Lee, President of KRICT, highlighted the catalyst's role in accelerating the practical implementation of eco-friendly hydrogen production technology, paving the way for a greener future.