Thermodynamic properties and absorption-desorption kinetics of Mg87Ni10Al3 alloy synthesised by reactive ball milling under H2 atmosphere

被引:18
作者
Doppiu, S
Solsona, P
Spassov, T
Barkhordarian, G
Dornheim, M
Klassen, T
Suriñach, S
Baró, MD
机构
[1] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain
[2] Univ Sofia, Dept Chem, BU-1126 Sofia, Bulgaria
[3] GKSS Forschungszentrum Geesthacht GmbH, Mat Res Inst, D-21502 Geesthacht, Germany
关键词
reactive milling; magnesium hydride; hydrogen storage materials; X-ray diffraction;
D O I
10.1016/j.jallcom.2005.02.082
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this work, the synthesis Of Mg87Ni10Al3 hydride by reactive ball milling under H-2 atmosphere is presented. Reactive milling under hydrogen induces the conversion of Mg into nanocrystalline MgH2 (final crystallite sizes similar to 8 nm). The percentage of the hydride increases with the milling time and after 20 h of mechanical treatment the reaction is complete. Only at longer milling time, when a high conversion degree of Mg into the hydride is reached, the reaction with Ni to form Mg2NiH4 is observed. Thermal analysis shows that, for the shorter milling time, the decomposition of the hydride starts at similar to 200 degrees C, but the stability of the hydride slightly increases with increasing milling time. Fast absorption-desorption kinetics is obtained at 300 degrees C. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:27 / 30
页数:4
相关论文
共 10 条
[1]   Fast hydrogen sorption kinetics of nanocrystalline Mg using Nb2O5 as catalyst [J].
Barkhordarian, G ;
Klassen, T ;
Bormann, R .
SCRIPTA MATERIALIA, 2003, 49 (03) :213-217
[2]   Addition of nanosized Cr2O3 to magnesium for improvement of the hydrogen sorption properties [J].
Bobet, JL ;
Desmoulins-Krawiec, S ;
Grigorova, E ;
Cansell, F ;
Chevalier, B .
JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 351 (1-2) :217-221
[3]   Synthesis of hydrides by mechanical alloying in the Mg-Ni-Ge system [J].
Gennari, FC ;
Urretavizcaya, G ;
Meyer, GO .
JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :588-592
[4]   Correlation between hydrogen storage properties and structural characteristics in mechanically milled magnesium hydride MgH2 [J].
Hanada, N ;
Ichikawa, T ;
Orimo, SI ;
Fujii, H .
JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 366 (1-2) :269-273
[5]   Synthesis of nanocrystalline hydrogen storage materials [J].
Huot, J ;
Tremblay, ML ;
Schulz, R .
JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :603-607
[6]   Quantitative analysis of silicate glass in ceramic materials by the Rietveld method [J].
Lutterotti, L ;
Ceccato, R ;
Dal Maschio, R ;
Pagani, E .
EPDIC 5, PTS 1 AND 2, 1998, 278-2 :87-92
[7]   Evolution of amorphous and nanocrystalline phases in mechanically alloyed Mg1.9M0.1Ni (M = Ti, Zr, V) [J].
Solsona, P ;
Doppiu, S ;
Spassov, T ;
Surinach, S ;
Baró, MD .
JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 381 (1-2) :66-71
[8]   Mechanical alloying and milling [J].
Suryanarayana, C .
PROGRESS IN MATERIALS SCIENCE, 2001, 46 (1-2) :1-184
[9]   Nanocrystalline magnesium for hydrogen storage [J].
Zaluska, A ;
Zaluski, L ;
Ström-Olsen, JO .
JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 288 (1-2) :217-225
[10]   Nanocrystalline metal hydrides [J].
Zaluski, L ;
Zaluska, A ;
StromOlsen, JO .
JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 253 :70-79