Synthesis of Nanostructured Mg-Ni Alloy and Its Hydrogen Storage Properties

材料科学技术（英文）, 2012, 28(5): 401-406.

Synthesis of Nanostructured Mg-Ni Alloy and Its Hydrogen Storage Properties

^1, , ^2, , ^3, , ^4,

1.Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan

2.Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan

3.Research Centre of Materials Science, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China

4.National Centre for Physics, Qaid-a-Azam University, Islamabad, Pakistan

基金项目: Islamabad, Pakistan under PhD indigenous-5000 Fellowship Program supported by Higher Education Commission

关键词：纳米合金 , 储氢性能 , NI合金 , 合成 , 纳米结构材料 , 透射电子显微镜 , 扫描电子显微镜 , 解吸行为

Synthesis of Nanostructured Mg-Ni Alloy and Its Hydrogen Storage Properties

N.A. Niaz ^1, , I. Ahmad ^2, , Waheed S. Khan ^3, , S. Tajammul Hussain ^4,

1.Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan

2.Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan

3.Research Centre of Materials Science, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China

4.National Centre for Physics, Qaid-a-Azam University, Islamabad, Pakistan

Keywords： Mg-Ni alloy , Hydrogen storage , Pressure-composition-temperature (P-C-T) measurements , Transmission electron microscopy ,

Nanostructured Mg–Ni alloy with the particle size in the range of 40–50 nm was synthesized by the thermal decomposition of bipyridyl complexes of Mg and Ni metals at 773 K for 24 h under dry argon gas ambient. The as-prepared nano-alloy was characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM） and transmission electron microscopy （TEM） for compositional and structural analysis. The alloy exhibited superior hydrogen absorption and desorption behavior with 3.2 wt% absorption within 1 min at 573 K and about 3 wt% desorption within 5–10 min at 573 K. This favorable behavior of Mg–Ni compound for the hydrogen storage is due to the specific nanostructure of the material. The low activation energy values and favorable thermodynamics indicate that the prepared Mg–Ni alloy is an attracting material for hydrogen storage applications.

参考文献

[1]	M. Jurczyk;L. Smardz;I. Okonska;E. Jankowska;M. Nowak;K. Smardz .Nanoscale Mg-based materials for hydrogen storage[J].International journal of hydrogen energy,2008(1):374-380.
[2]	R. Vijay;R. Sundaresan;M.P. Maiya;S. Srinivasa Murthy .Comparative evaluation of Mg-Ni hydrogen absorbing materials prepared by mechanical alloying[J].International journal of hydrogen energy,2005(5):501-508.
[3]	J.-L. Bobet;E. Grigorova;M. Khrussanova .Hydrogen sorption properties of the nanocomposites Mg-Mg_2Ni_(1-x)Fe_x[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2002(1/2):280-285.
[4]	T. Spassov;P. Solsona;S. Bliznakov .Synthesis and hydrogen sorption properties of nanocrystalline Mg_(1.9)M_(0.1)Ni (M=Ti, Zr, V) obtained by mechanical alloying[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(0):639-643.
[5]	M.-H. Grosjean;M. Zidoune;L. Roue;J.-Y. Huot .Hydrogen production via hydrolysis reaction from ball-milled Mg-based materials[J].International journal of hydrogen energy,2006(1):109-119.
[6]	K. Yoshimura;Y. Yamada;M. Okada .Optical switching of Mg-rich Mg-Ni alloy thin films[J].Applied physics letters,2002(25):4709-4711.
[7]	N. Hanada;T. Ichikawa;H. Fujii .Catalytic effect of Ni nano-particle and Nb oxide on H-desorption properties in MgH_2 prepared by ball milling[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2005(0):716-719.
[8]	S.ORIMO;K.IKEDA;H.FUJII .STRUCTURAL AND HYDRIDING PROPERTIES OF THE Mg-Ni-H SYSTEM WITH NANO-AND/OR AMORPHOUS STRUCTURES[J].Acta materialia,1997(6):2271-2278.
[9]	F. C. Gennari;M.R. Esquivel .Structural characterization and hydrogen sorption properties of nanocrystalline Mg_2Ni[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):425-432.

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Synthesis of Nanostructured Mg-Ni Alloy and Its Hydrogen Storage Properties

Synthesis of Nanostructured Mg-Ni Alloy and Its Hydrogen Storage Properties

参考文献