The article discusses the promising role of hydrogen as a green fuel for the future, highlighting its abundance, non-polluting nature, and high calorific value. Hydrogen not only serves as an energy source but is also widely used in various industries such as chemicals, steel processing, and food production. The challenges in hydrogen production from natural gas are addressed, with a focus on the emissions associated with common methods like steam reforming. The article introduces thermal decomposition (TCD) as an environmentally friendly method for producing hydrogen from methane without emitting greenhouse gases. Additionally, the role of metal oxide catalysts in methane decomposition is explored, with a specific focus on tri-metallic catalysts showing high methane conversion rates in recent studies. The article provides insights into the advancements in catalyst research, emphasizing the importance of catalyst design for optimizing hydrogen production efficiency.