New HyCARE scientific paper just released!

HyCARE’s researchers of the University Of Turin  (Italy), the Centre National de la Recherche Scientifique (France), the Helmholtz-Zentrum hereon GmbH (Germany), together with the Institute for Energy Technology (Norway) published the results of the analysis of neutron diffraction data.


Hydrogen is an efficient energy carrier that can be produced from renewable sources, enabling the transition towards CO2-free energy. Hydrogen can be stored for a long period in the solid-state, with suitable alloys. Ti-rich TiFe0.90 compound exhibits a mild activation process for the first hydrogenation, and Ti(Fe,Mn)0.90 substituted alloys can lead to the fine tuning of equilibrium pressure as a function of the final application. In this study, the crystal structure of TiFe(0.90-x)Mnx alloys (x = 0, 0.05 and 0.10) and their deuterides has been determined by in-situ neutron diffraction, while recording Pressure-Composition Isotherms at room temperature. The investigation aims at analysing the influence of Mn for Fe substitution in Ti-rich Ti(Fe,Mn)0.90 alloys on structural properties during reversible deuterium loading, which is still unsolved and seldom explored. After activation, samples have been transferred into custom-made stainless-steel and aluminium alloy cells used for in-situ neutron diffraction experiments during deuterium loading at ILL and ISIS neutron facilities, respectively. The study enables remarkable understanding on hydrogen storage, basic structural knowledge, and support to the industrial application of TiFe-type alloys for integrated hydrogen tank in energy storage systems by determining the volume expansion during deuteration. Furthermore, the study demonstrates that different contents of Mn do not significantly change the volumetric expansion during phase transitions, affecting only the deuterium content for the γ phase and the cell evolution for the β phase. The study confirms that the deuterated structures of the γ phase upon absorption, β and α phase upon desorption, correspond to S.G. Cmmm, P2221 and Pm-3m, respectively.


The article is available in Open access at this link.

FBK and ENGIE researchers in Hamburg for the system FAT

On November 8, several researchers from Fondazione Bruno Kessler – FBK and ENGIE travelled to Hamburg to visit Stühff GmbH, the company in charge of realizing the system integration for HyCARE project.

The main purpose of the business trip was to realise the Factory Acceptance Test (i.e. FAT) on the system. The test aimed at giving the green light to transfer the tank to Paris, at ENGIE Lab Crigen, a research and operational expertise center, in a Living Lab where innovative energy storage solutions are explored.

The FAT consisted in (i) the revision of the installation according to the P&ID – by ENGIE and Stühff GmbH, (ii) the realisation of the leakage test – by ENGIE and Stühff GmbH, (iii) the evaluation of the correct functioning of critical alarms – by FBK, ENGIE and Stühff GmbH, and finally (iv) the check on the correct functioning of the state machine and of the control loops – by FBK, ENGIE and Stühff GmbH.

On this occasion, the project partners had the chance to work together, exchange views and strenghten relationship.

HyCARE represented at the MH2022

Prof Paola Rizzi, from the Department Of Chemistry at the University of Torino (Italy) focused on the study of advanced materials for hydrogen storage and of hydrides for solid state hydrogen compression.

Prof. Rizzi participated as invited speaker at the 17th International Symposium on Metal-Hydrogen System, with the presentation “HyCARE project: hydrogen storage from lab to industrial scale“.

MH2022 is the most important International conference on metal hydrides and took place in Perth, Western Australia, from October 30 to November 4, 2022.

Read the programme here. More information on the conference, at this link.