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Abstract: This paper presents a study on the development of noble-metal-free catalysts for hydrogen production from the electrolysis of ammonia. The use of ammonia as a hydrogen carrier has gained attention due to its high hydrogen content and ease of storage. However, the conventional catalysts used in ammonia electrolysis typically involve expensive noble metals like platinum or palladium. In this study, researchers explore various alternative catalyst materials such as transition metal nitrides, carbides, and phosphides. These materials are evaluated for their catalytic activity, stability, and selectivity in ammonia electrolysis. The results show that certain non-noble metal catalysts, particularly transition metal phosphides, exhibit promising performance in terms of hydrogen production efficiency and long-term stability. Furthermore, the researchers also investigate the effect of operational parameters such as temperature, ammonia concentration, and current density on the catalyst performance. Overall, this study highlights the potential of noble-metal-free catalysts for sustainable hydrogen production through ammonia electrolysis, which can contribute to the development of efficient and cost-effective hydrogen energy systems. |