Skip to main content Accessibility help

Enhanced hydrogen sorption capacities and kinetics of Mg2Ni alloys by ball-milling with carbon and Pd coating

  • R. Janot (a1), L. Aymard (a1), A. Rougier (a1), G. A. Nazri (a2) and J. M. Tarascon (a1)...


Solid-state hydrogen storage alloys are becoming a practical method to transport and utilize hydrogen as fuel for various technologies. In this paper, the kinetics and capacity of hydrogen desorption from Mg-based alloys have markedly been enhanced by tuning the surface composition of alloy particles. Mg2Ni–Ct, x composites (where t refers to the pregrinding time and x to the Brunauer–Emmet–Teller specific surface area) were prepared by ball-milling the alloy in the presence of preground graphite, and Pd-coated Mg2Ni alloy powders were obtained by controlled chemical deposition of Pd on the alloy surface. We have found that the optimization of the pregrinding step of carbon is a determinant factor in enhancing the hydrogen desorption capacity of the Mg2Ni–10 wt.% C10,320 composites to 2.6 wt.% at 150 °C, the maximum performance so far reported on desorption for Mg-based alloys. Such value can even be raised to 2.8 wt.% by applying Pd deposition on the composite.



Hide All
Reilly, J.J. and Wiswall, R.H., Inorg. Chem. 7, 2254 (1968).
Akiba, E., Nomura, K., Ono, S., and Suda, S., Int. J. Hydrogen Energy 7, 787 (1982).
Kohno, T. and Kanda, M., J. Electrochem. Soc. 144, 2384 (1997).
Zhang, Y., Yang, H., Yuan, H., Yang, E., Zhou, Z., and Song, D., J. Alloy. Compd. 269, 278 (1998).
Orimo, S. and Fujii, H., Appl. Phys. A 72, 167 (2001).
Nohara, S., Inoue, H., Fukumoto, Y., and Iwakura, C., J. Alloy. Compd. 252, L16 (1997).
Iwakura, C., Inoue, H., Zhang, S., Yorimitsu, K., Kuramoto, N., and Morikawa, T., J. Electrochem. Soc. 146, 1659 (1999).
Bouaricha, S., Dodelet, J.P., Guay, D., Huot, J., and Schulz, R., J. Alloy. Compd. 325, 245 (2001).
Zaluski, L., Zaluska, A., Tessier, P., and Ström-Olsen, J.O., J. Alloy. Compd. 217, 295 (1995).
Bouaricha, S., Dodelet, J.P., Guay, D., Huot, J., Boily, S., and Schulz, R., J. Alloy. Compd. 307, 226 (2000).
Ruggeri, S., Roué, L., Liang, G., Huot, J., and Schulz, R., J. Alloy. Compd. 343, 170 (2002).
Aymard, L., Lenain, C., Courvoisier, L., Salver-Disma, F., Tarascon, J.M., J. Electrochem. Soc. 146, 2015 (1999).
Bonet, F., Delmas, V., Grugeon, S., Herrera-Urbina, R., Silvert, P.Y., Tekaia-Elsissen, K., Tarascon, J.M., Nanostructured Mater. 11, 1277 (1999).
Hegde, M.S., Larcher, D., Dupont, L., Beaudoin, B., Tekaia-Elhsissen, K., Tarascon, J.M., Solid State Ionics 93, 33 (1996).
Janot, R., Rougier, A., Aymard, L., Lenain, C., Herrera-Urbina, R., Nazri, G.A., and Tarascon, J.M., MH 2002 International Symposium-Annecy, J. Alloy. Compd. (in press).


Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed