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Kinetics of hydrogen in Mg2Ni and in hydrogenated Mg and Mg-Mg2Ni eutectic
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SYSNO ASEP 0307737 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Kinetics of hydrogen in Mg2Ni and in hydrogenated Mg and Mg-Mg2Ni eutectic Title Kinetika vodíku v Mg2Ni a v hydrogenovaném eutektiku Mg-Mg2Ni Author(s) Čermák, Jiří (UFM-A) RID, ORCID
Král, Lubomír (UFM-A) RID, ORCID
Stloukal, Ivo (UFM-A)Source Title METAL 2008. Sborník přednášek.. - Ostrava : Tanger, 2008 - ISBN 978-80-254-1987-8 Pages paper no. 14 Number of pages 8 s. Publication form CD ROM - CD ROM Action METAL 2008. Mezinárodní konference metalurgie a materiálů /17./ Event date 13.05.2008-15.05.2008 VEvent location Hradec nad Moravicí Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords hydrogen storage ; Mg-Ni alloys ; hydrogen diffusion coefficients Subject RIV BJ - Thermodynamics R&D Projects GA106/07/0010 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation Time dependence of total amount of hydrogen desorbed from hydrogen-charged Mg and eutectic Mg-Mg2Ni (23.5 wt. % Ni) alloy was measured at temperatures from interval 552 – 723 K. Experiments were carried out well below the equilibrium pressure, where these hydrides – perspective as solid hydrogen storage media – are unstable and the desorption process is controlled mainly by diffusion of hydrogen in respective hydride (MgH2 and/or Mg2NiH4). Hydrogen diffusion coefficients were evaluated from desorption curves and hydrogen diffusion coefficient along interphase boundary MgH2/Mg2NiH4 was estimated from results obtained with the eutectic alloy. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2008
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