Hydrogen generation by hydrolysis reaction using magnesium alloys with long period stacking ordered structure
AL BACHA, Serge
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Institut Lavoisier de Versailles [ILV]
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Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Institut Lavoisier de Versailles [ILV]
AL BACHA, Serge
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Institut Lavoisier de Versailles [ILV]
< Leer menos
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
Institut Lavoisier de Versailles [ILV]
Idioma
en
Article de revue
Este ítem está publicado en
International Journal of Hydrogen Energy. 2021-10, vol. 46, n° 71, p. 35161-35171
Elsevier
Resumen en inglés
In the present work are reported the hydrogen generation performances of Long Period Stacking Ordered (LPSO) compounds with 18R, 14H and 10H-type structures by hydrolysis reaction in simulated seawater solution (35 g/L ...Leer más >
In the present work are reported the hydrogen generation performances of Long Period Stacking Ordered (LPSO) compounds with 18R, 14H and 10H-type structures by hydrolysis reaction in simulated seawater solution (35 g/L NaCl). LPSO compounds and LPSO + Mg alloys synthesized by induction melting are described in the light of their microstructural and electrochemical properties. Except for 10H type, all LPSO present improved H2 generation features compared to pure Mg. Indeed, 80% of the reaction is achieved in less than 40 minutes. The highest generation yield of 90% is obtained for single phase LPSO Mg87.6Ni5.5Y6.9. Alloys containing both Mg and LPSO beneficiate from galvanic coupling between the two phases leading to higher reactivity. The activation energies of 27.3 and 85.4 kJ/mol determined for Mg91Ni4Y5 (14H + Mg) and Mg83.3Cu7.2Y9.5 (18R) respectively clearly highlight this benefit from galvanic coupling.< Leer menos
Palabras clave en inglés
Magnesium
LPSO
Hydrogen generation
Hydrolysis
Corrosion
Orígen
Importado de HalCentros de investigación