Share This Article:

Hydriding and dehydriding kinetics of melt spun nanocrystalline Mg20Ni10-xCux (x = 0-4) alloys

Full-Text HTML Download Download as PDF (Size:2056KB) PP. 18-25
DOI: 10.4236/ns.2010.21003    5,102 Downloads   9,472 Views   Citations

ABSTRACT

The nanocrystalline Mg2Ni-type electrode alloys with nominal compositions of Mg20Ni10-xCux (x = 0, 1, 2, 3, 4) were synthesized by melt-spinning technique. The microstructures of the alloys were characterized by XRD, SEM and HRTEM. The hydrogen absorption and desorption kinet-ics of the alloys were measured using an auto-matically controlled Sieverts apparatus. The re- sults show that all the as-spun alloys hold ty- pical nanocrystalline structure. The substitution of Cu for Ni does not change the major phase Mg2Ni but it leads to the formation of the sec-ondary phase Mg2Cu. The hydrogen absorption capacity of the alloys first increases and then decreases with rising Cu content, but the hy-drogen desorption capacity of the alloys mono- tonously grows with increasing Cu content. The melt spinning significantly improves the hydro- genation and dehydrogenation capacities and kinetics of the alloys.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Zhang, Y. , Zhao, D. , Li, B. , Ren, H. , Guo, S. and Wang, X. (2010) Hydriding and dehydriding kinetics of melt spun nanocrystalline Mg20Ni10-xCux (x = 0-4) alloys. Natural Science, 2, 18-25. doi: 10.4236/ns.2010.21003.

References

[1] Schlapbach, L. and Züttel, A. (2001) Hydrogen-storage materials for mobile applications [J]. Nature, 414, 353- 358.
[2] Simi?i?, M.V., Zduji?, M., Dimitrijevi?, R., et al. (2006) Hydrogen absorption and electrochemical properties of Mg2Ni-type alloys synthesized by mechanical alloying [J]. Journal of Power Sources, 158, 730-734.
[3] Schlapbach, L. (2002) Hydrogen as a fuel and its storage for mobility and transport [J]. MRS Bulletin, 27, 675-676.
[4] Ebrahimi-Purkani, A. and Kashani-Bozorg, S.F. (2008) Nanocrystalline Mg2Ni-based powders produced by high-energy ball milling and subsequent annealing [J]. Journal of Alloys and Compounds, 456, 211-215.
[5] Kyoi, D., Sakai, T., Kitamura, N., et al. (2008) Synthesis of FCC Mg-Ta hydrides using GPa hydrogen pressure method and their hydrogen-desorption properties [J]. Journal of Alloys and Compounds, 463, 306-310.
[6] Palade, P., Sartori, S., Maddalena, A., et al. (2006) Hy-drogen storage in Mg-Ni-Fe compounds prepared by melt spinning and ball milling [J]. Journal of Alloys and Compounds, 415, 170-176.
[7] Song, M.Y., Yim, C.D., Bae, J.S, et al. (2008) Prepara-tion by gravity casting and hydrogen-storage properties of Mg-23.5 wt.%Ni-(5, 10 and 15 wt.%)La [J]. Journal of Alloys and Compounds, 463, 143-147.
[8] Hima Kumar, L., Viswanathan, B. and Srinivasa Murthy S. (2008) Hydrogen absorption by Mg2Ni prepared by polyol reduction [J]. Journal of Alloys and Compounds, 461, 72-76.
[9] Liu, X.F., Zhu, Y.F. and Li, L.Q. (2008) Structure and hydrogenation properties of nanocrystalline Mg2Ni pre-pared by hydriding combustion synthesis and mechanical milling [J]. Journal of Alloys Compounds, 455, 197-202.
[10] Liu, F.J. and Suda, S. (1995) A method for improving the long-term storability of hydriding alloys by air water ex-posure [J]. Journal of Alloys Compounds, 231, 742-750.
[11] Czujko, T., Varin, R.A., Chiu, C., et al. (2006) Investiga-tion of the hydrogen desorption properties of Mg+10 wt.% X (X = V, Y, Zr) submicrocrystalline composites [J]. Journal of Alloys Compounds, 414, 240-247.
[12] Gasiorowski, A., Iwasieczko, W., Skoryna., et al. (2004) Hydriding properties of nanocrystalline Mg2?xMxNi al-loys synthesized by mechanical alloying (M = Mn, Al) [J]. Journal of Alloys Compounds, 364, 283-288.
[13] Sakintuna, B., Lamari-Darkrim, F. and Hirscher, M. (2007) Metal hydride materials for solid hydrogen stor-age: A review [J]. International Journal of Hydrogen Energy, 32, 1121-1140.
[14] Gennari, F.C. and Esquivel, M.R. (2008) Structural char-acterization and hydrogen sorption properties of nanocrystalline Mg2Ni [J]. Journal of Alloys Compounds, 459, 425-432.
[15] Muthukumar, P., Prakash Maiya, M., Srinivasa Murthy, S., et al. (2008) Tests on mechanically alloyed Mg2Ni for hydrogen storage [J]. Journal of Alloys Compounds, 452, 456-461.
[16] Recham, N., Bhat, V.V., Kandavel, M., et al. (2008) Reduction of hydrogen desorption temperature of ball- illed MgH2 by NbF5 addition [J]. Journal of Alloys Compounds, 464, 377-382.
[17] Dobrovolsky, V.D., Ershova, O.G., Solonin, Yu. M., et al. (2008) Influence of TiB2 addition upon thermal sta-bility and decomposition temperature of the MgH2 hy-dride of a Mg-based mechanical alloy [J]. Journal of Al-loys Compounds, 465, 177-182.
[18] Liang, G. (2004) Synthesis and hydrogen storage proper-ties of Mg-based alloys [J]. Journal of Alloys Compounds, 370, 123-128.
[19] Song, M.Y., Kwon, S.N., Bae, J.S., et al. (2008) Hydro-gen-storage properties of Mg-23.5Ni-(0 and 5)Cu pre-pared by melt spinning and crystallization heat treatment [J]. International Journal of Hydrogen Energy, 33, 1711-1718.
[20] Savyak, M., Hirnyj, S., Bauer, H.D., et al. (2004) Elec-trochemical hydrogenation of Mg65Cu25Y10 metallic glass [J]. Journal of Alloys Compounds, 364, 229-237.
[21] Spassov, T. and K?ster, U. (1998) Thermal stability and hydriding properties of nanocrystalline melt-spun Mg63Ni30Y7 alloy [J]. Journal of Alloys Compounds, 279, 279-286.
[22] Zhang,Y.H., Li, B.W., Ren, H.P., et al. (2009) Hydriding and dehydriding characteristics of nanocrystalline and amorphous Mg20Ni10-xCox (x=0–4) alloys prepared by melt-spinning [J]. International Journal of Hydrogen Energy, 34, 2684-2691.
[23] Friedlmeier, G., Arakawa, M., Hiraia, T., et al. (1999) Preparation and structural, thermal and hydriding char-acteristics of melt-spun Mg-Ni alloys [J]. Journal of Al-loys Compounds, 292, 107-117.
[24] Tanaka, K., Kanda, Y., Furuhashi, M., et al. (1999) Im-provement of hydrogen storage properties of melt-spun Mg-Ni-RE alloys by nanocrystallization [J]. Journal of Alloys Compounds, 293-295, 521-525.
[25] Orimo, S. and Fujii, H. (2001) Materials science of Mg-Ni-based new hydrides [J]. Applied Physics A, 72, 167-186.
[26] Mulas, G., Schiffini, L. and Cocco, G. (2004) Mechano-chemical study of the hydriding properties of nanostruc-tured Mg2Ni–Ni composites [J]. Journal of Materials Research, 19, 3279-3289.
[27] Zaluski, L., Zaluska, A.J. and Str?m-Olsen, O. (1997) Nanocrystalline metal hydrides [J]. Journal of Alloys Compounds, 253-254, 70-79.
[28] Orimo, S., Fujii, H. and Ikeda, K. (1997) Notable hy-driding properties of a nanostructured composite material of the Mg2Ni-H system synthesized by reactive me-chanical grinding [J]. Acta Materialia, 45, 331-341.
[29] Woo, J.H. and Lee, K.S. (1999) Electrode characteristics of nanostructured MgNi-type alloys prepared by me-chanical alloying [J]. Journal of The Electrochemical So-ciety, 146, 819-823.

  
comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.