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Professor Jacques Huot, Hydrogen Research Institute, Universite du Quebec a Trois-Rivieres

Event Date: 
Monday, January 27, 2020 - 3:30pm to 4:30pm

Use of neutrons for the development of metal hydrides


For the development of hydrogen as an energy carrier, efficient ways to store hydrogen should be implemented. Beside storage in pressure tanks and in liquid form, an efficient way to store hydrogen is in metal hydrides. Metal hydrides are attractive for storing hydrogen because they have high volumetric capacities, low operational pressure, and could be used for any scale of applications. In order to design metal hydrides that will match the operational conditions, a fundamental understanding of hydrogen-metal interaction is needed. Practically the only way to probe hydrogen in the crystal structure of a metal hydride is by using neutrons. In this talk we will present a few examples of using neutrons to get a better knowledge of a metal hydride. First, we will demonstrate the use of constant wavelength (CW) neutron diffraction to understand the phase transformation in Mg-Fe system.  In this study, we used the fact that hydrogen and deuterium have different scattering length to extract information about how the synthesis method has an impact on the final state of the hydride. The second example will be phase transformation upon hydrogenation in body-centred cubic (bcc) alloy. This will demonstrate that despite having a null matrix structure, some alloys could still be studied by neutron diffraction. Other neutron techniques will also be briefly reviewed.  



Prof Huot got his Ph.D in Physics from Laval University. He did a first post-doc at the Chemical Engineering Department, Texas A & M University. His second postdoc was at the National Institute of Materials and Chemical Research in Tsukuba, Japan. He was then hired as a researcher at Hydro-Québec where he studied magnesium-based nanocrystalline alloys for hydrogen storage. Since 2004 he is a professor at UQTR and member of the Hydrogen Research Institute. His expertise is solid-gaz interactions, metal hydrides, and material characterization. He has been an invited researcher at the Institute for Energy Technology (Norway), Federal University of São Carlos (Brazil), National Institute of Advanced Industrial Science and Technology (Japan), Université de Bordeaux (France), Institut NÉEL (France), Max Plank Institut fur Kohlenforschung (Germany), Helmut-Schmidt University (Germany) and Wuhan University of Technology (China). He published 180 papers and is co-inventor of 10 patents. He is co-editor of a book on Neutron Scattering and Other Nuclear Techniques for Hydrogen in Materials. He is scientific editor for Journal of Alloys and Compounds and for the journal Metals. He is secretary of the International Steering Committee on Metal Hydrides. He was Chair of the Gordon Conference Hydrogen-Metal Systems in 2017. In 2018 he received the prize of achievement in research from the Université du Québec à Trois-Rivières.



Event Location: 
Location Details: 
JHE 326H