Synthesis, characterization and hydrogen storage properties of Mm(Ni,Co,Mn,Al)5 alloy
作者： Seyyed Mojtaba AlaviSadr , Hadi Arabi , Faiz Pourarian
关键词: Activation energy 、 Hydrogen storage 、 Atmospheric temperature range 、 Enthalpy 、 Alloy 、 Mischmetal 、 Materials science 、 Analytical chemistry 、 Kinetic energy 、 Metallurgy 、 Dehydrogenation
摘要: This paper investigates hydrogenation characterizations and effect of hydrogenation/dehydrogenation (H/D) cycling on the structural morphological properties MmNi 4.22 Co 0.48 Mn 0.15 Al (Mm=mischmetal) alloy. The alloy was prepared by arc melting method it re-melted several times under argon atmosphere. results indicate that after H/D cycles, is pulverized into fine particles, however, keeps its hexagonal LaNi 5 -type structure. pressure-composition isotherms reactions absorption kinetics were measured in temperature range 293-338K. plateau pressures determined to be ~0.51, 1.22 2.49 bar at 293, 313 333K respectively, with a maximum hydrogen storage capacity about 5.78 293K. enthalpy (∆H), entropy (∆S) activation energy (E ) also calculated. show reaction rate increases an increase operating or pressure. Jander diffusion (JDM) Johnson-Mehl -Avrami (JMA) models employed kinetic analyzed detail for hydriding (rate controlling steps) mechanism. has potential use practical applications.
sci-hub.st 参考文章(33)
Hadi Arabi, Seyyed Mojtaba Zareii, Faiz Pourarian, Reza Sarhadd, Physical properties and electronic structure of LaNi5 compound before and after hydrogenation: An experimental and theoretical approach Iranian Journal of Hydrogen and Fuel Cell. ,vol. 1, pp. 27- 39 ,(2014)
H NAKAMURA, Cycle performance of a hydrogen-absorbing La0.8 Y0.2 Ni4.8 Mn0.2 Alloy International Journal of Hydrogen Energy. ,vol. 21, pp. 457- 460 ,(1996) , 10.1016/0360-3199(95)00108-5
P. Muthukumar, A. Satheesh, M. Linder, R. Mertz, M. Groll, Studies on hydriding kinetics of some La-based metal hydride alloys International Journal of Hydrogen Energy. ,vol. 34, pp. 7253- 7262 ,(2009) , 10.1016/J.IJHYDENE.2009.06.075
Tyler Voskuilen, Yuan Zheng, Timothée Pourpoint, Development of a Sievert apparatus for characterization of high pressure hydrogen sorption materials International Journal of Hydrogen Energy. ,vol. 35, pp. 10387- 10395 ,(2010) , 10.1016/J.IJHYDENE.2010.07.169
Bernard Dennis Cullity, Elements of X-ray diffraction ,(1956)
Xu Zhang, Qian Li, Kuo-Chih Chou, Kinetics of hydrogen absorption in the solid solution region for Laves phase Ho1−xMmxCo2 (x = 0, 0.2 and 0.4) alloys Intermetallics. ,vol. 16, pp. 1258- 1262 ,(2008) , 10.1016/J.INTERMET.2008.07.012
L MING, The hydriding and dehydriding kinetics of some RCo5 alloys International Journal of Hydrogen Energy. ,vol. 22, pp. 63- 66 ,(1997) , 10.1016/S0360-3199(96)00033-X
MN Mungole, R Balasubramaniam, Effect of hydrogen cycling on the hydrogen storage properties of MmNi4.2Al0.8 International Journal of Hydrogen Energy. ,vol. 25, pp. 55- 60 ,(2000) , 10.1016/S0360-3199(99)00012-9
J.M Cocciantelli, P Bernard, S Fernandez, J Atkin, The influence of Co and various additives on the performance of MmNi4.3−xMn0.33Al0.4Cox hydrogen storage alloys and Ni/MH prismatic sealed cells Journal of Alloys and Compounds. ,vol. 253, pp. 642- 647 ,(1997) , 10.1016/S0925-8388(96)02978-7
M. Ayari, V. Paul-Boncour, J. Lamloumi, A. Percheron-Guégan, Magnetic properties of LaNi3.55Mn0.4Al0.3Co0.75−xFex (x=0, 0.35) compounds before and after electrochemical cycles Journal of Magnetism and Magnetic Materials. ,vol. 242, pp. 850- 853 ,(2002) , 10.1016/S0304-8853(01)01341-5