Estimation of equilibrium hydrogen pressure - A new method

0496306 - ÚFM 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Čermák, Jiří - Král, Lubomír
Estimation of equilibrium hydrogen pressure - A new method.
Metal 2018 - 27th International conference on metallurgy and materials, Conference Proceedings. Ostrava: TANGER Ltd, 2018, s. 1500-1505. ISBN 978-80-87294-84-0.
[Metal 2018 - International conference on metallurgy and materials /27./. Brno (CZ), 23.05.2018-25.05.2018]
Grant CEP: GA ČR(CZ) GA17-21683S
Institucionální podpora: RVO:68081723
Klíčová slova: hydrogen storage * magnesium * new method
Obor OECD: Materials engineering

A new method is proposed to estimation of hydrogen pressure in equilibrium with hydride phase in a hydrogen
storage material. It is applicable both for hydrogen absorption and desorption in cases where the hydride phase
is formed by nucleation and growth mechanism. The proposed method saves considerably the experimental
time replacing the conventional time consuming measurement of pressure-composition isotherms, the so
called PCT curves. The proposed evaluation procedure is illustrated using hydrogen chemi-sorption at
temperatures 623 K, 573 K and 523 K in chosen hydrogen storage alloys Mg-Si-C, Mg-Li-C and Mg-Na-C.
Trvalý link: http://hdl.handle.net/11104/0289508