There is a great economic opportunity in developing methods for direct conversion of methane into liquid fuel and chemicals due to its high availability. Currently, the commercial processes involve indirect conversion which is feasible only at large scales. However, the direct conversion of methane into valuable products concerns the challenge of activating one of the most stable of all hydrocarbons. To address these issues, new catalyst and process design are a necessity. Metal-containing zeolite materials comprising copper and iron species as active sites, inspired by the natural enzyme systems represent the most promising catalysts for the methane activation. In the frame of this project, Cu-containing zeolite materials are going to be prepared applying milling processes, an environment-friendly route. The obtained materials will be tested as catalysts in the direct methane conversion into hydrocarbons. The results are expected to serve as the foundation for development of an industrial process thus providing a cost- and energy-efficient solving of the energy feedstocks issue. The work on the topic of direct methane conversion is going to enable new possibilities in finding the appropriate solution of the aim to increase the independence of the Republic of Croatia from the energetical perspective.