About the project
Entropy Stabilized Metal Hydrides for Hydrogen Compression (ESMH2C) research project focuses on entropy-stabilized multiprincipal element alloys and their incorporation into high-pressure hydrogen compressors and supports the CET Partnership call module 05 “Hydrogen and renewable fuels”. The underlying principle is that alloying multiple elements provides significant entropic stabilization of alloys that enhances reversible hydrogen capacity of corresponding metal hydride phases, prevents phase segregation, and improves long-term cycling performance. Our ultimate goal is to develop a first prototype for high pressure compressor based on these materials.
More specifically, the objectives of the project are:
i) data-driven machine learning predictions of novel compositions with enhanced performances for hydrogen compression,
ii) experimental validation of proposed compositions at laboratory scale and systematic characterization of physicochemical and hydrogen sorption properties,
iii) numerical modelling of isotherms under realistic conditions, followed by
iv) scale-up of most promising experimentally and numerically validated materials for testing in a real tank for compression.
This project is pioneering and aims to highlight the interplay between fundamental material properties, scale-up challenges and applied engineering aspects in real tank systems.
The project involves both academic and industrial partners and solving these challenges will allow bridging the gap between fundamental knowledge and applied engineering towards the next generation tanks based on metal hydride for high-pressure hydrogen compression.
