Hydrogen economy has been suggested as a possible green alternative to produce energy, also in the framework of transport applications. According to the specific transport means, different kinds of materials can be adopted. The choice of the most suitable materials should then be addressed according to a systematic analysis of available data. In this paper, together with the major physical storage technologies typically used for aerospace applications, additional possible candidates are suggested, namely clathrates hydrates and metal-organic frameworks (MOFs). They are chosen according to the specific features that are asked in the aerospace industry, such as high storage capacities, low weight and materials cost, high cyclability and full reversibility. To this scope, a comprehensive database based on a large set of information from literature (containing, for example, details on the synthesis processes, the operating temperatures and pressures, volumetric and gravimetric capacities) has been created, and specific tools have been developed to query the database. Indeed, the selection of the materials has been performed via an alternative database approach where the queries can be managed using a user-friendly tool, and potential materials can be selected based on any pool of desirable properties in quantitative terms. Essential information and characterization on theoretical and experimental data about these performing materials are provided and commented. As an example, in this paper, the case of clathrates hydrates is shown, and their potential impact is explored and characterized in this context, suggesting the most suitable synthesis processes.
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