ESMH2C

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 strategy of the project is: 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. In this respect, 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. The ESMH2C project is therefore challenging and aims to propose the best entropy-stabilized, multiprincipal element metallic materials for high-pressure compressors. The proposed method is key for accelerating discovery of new materials and their further implementation in practical devices. To ensure the success of the project, the consortium encompasses complementary expertise of four international academic teams: Institut de Chimie et des Matériaux Paris-Est, ICMPE-CNRS, France, Institute for Energy Technology, IFE, Norway, Sandia National Laboratories, SNL, USA, Ecole Nationale d'Ingénieurs de Monastir, ENIM, Tunisia, and one industrial member, HYSTORSYS, Norway.