Application of nanotechnology to the development of magnesium-based materials for hydrogen storage, in order to help make its use viable as a clean fuel in transportation systems

Project Details

Description

The advancement of the use of hydrogen as fuel for vehicles, requires having a solution for its storage, in such a way that it is a safe way and that at the same time is as practical as the use of fossil fuels today in relation to to recharge and use. In this sense, for several decades it has been seen that a safe way to transport hydrogen in a vehicle is in the solid state, making part of metal hydrides. Among the most promising and therefore most studied metals is magnesium; this due to its low density and the reversibility in the hydrogenation and dehydrogenation process. However, a satisfactory solution has not yet been achieved regarding the kinetics of previous processes. Even so, quite promising results have been reported through the use of metal nanoparticles and microstructural modification in the magnesium base of the alloys, which have not only reduced dehydrogenation temperatures but also increased the amount of hydrogen that can be stored per unit of hydrogen. alloy weight from about 7% to about 20%. These achievements, however, involve the use of large amounts of alloy, which goes against the advantage of magnesium in terms of density, and also greatly increases the price of the alloy by using high-cost metals. On the other hand, the role of the presence of defects in the structure has been seen to have a positive effect. Thus, it is proposed that the application of high-energy grinding processes to obtain Mg-based nanoparticulate alloys, which, thanks to their size and the induced microstructural modifications, allow improving the kinetics of hydrogenation and dehydrogenation and/or lead to a reduction in the use of of high weight and cost alloys.

Objective

To develop a material based on nanoparticulate magnesium that allows the storage of hydrogen under favorable kinetic and thermodynamic adsorption conditions for its use as fuel.

Expected results

Two (2) Category A1 Articles, One (1) Industrial Prototypes - Sieverts-type device that allows pressure-composition-temperature measurements to be carried out. One (1) Industrial Designs Design of a Sieverts-type apparatus for pressure-composition-temperature measurements, Two (2) papers. Presentation at the Sustainable Energy Cluster of the Medellin and Antioquia Chamber of Commerce of the results of the project, two (2) Linking of Young Researchers through fellowships to CTeI activities, two (2) training of master's students.
AcronymNanotecnología en magnesio
StatusActive
Effective start/end date26/05/2126/05/24

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