Effect of the nature of the starting materials on the formation of Mg2FeH6

被引:42
作者
Castro, FJ [1 ]
Gennari, FC
机构
[1] CNEA, Ctr Atom Bariloche, RA-8402 San Carlos De Bariloche, Rio Negro, Argentina
[2] UNC, Inst Balseiro, Ctr Atom Bariloche, RA-8402 San Carlos De Bariloche, Rio Negro, Argentina
[3] CNEA, Inst Balseiro, Ctr Atom Bariloche, RA-8402 San Carlos De Bariloche, Rio Negro, Argentina
[4] Consejo Nacl Invest Cient & Tecn, Consejo Nacl Invest Cientif & Tecn, Ctr Atom Bariloche, RA-8402 San Carlos De Bariloche, Rio Negro, Argentina
关键词
hydrogen storage material; mechanical alloying; thermal analysis;
D O I
10.1016/j.jallcom.2003.11.147
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
The compound Mg2FeH6 was synthesized in a single process by reactive mechanical alloying (RMA) a 2MgH(2) + Fe mixture under hydrogen atmosphere at room temperature. The process yield is 15.6 wt. % Of Mg2FeH6, after 100 h of milling. The synthesis Of Mg2FeH6 takes almost twice the time and gives nearly half the yield obtained when milling a 2Mg + Fe mixture under similar conditions. The differences observed are explained in terms of the contrast between the mechanical properties and the microstructures of the starting mixtures. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:292 / 296
页数:5
相关论文
共 9 条
  • [1] DIMAGNESIUM IRON(II) HYDRIDE, MG2FEH6, CONTAINING OCTAHEDRAL FEH64- ANIONS
    DIDISHEIM, JJ
    ZOLLIKER, P
    YVON, K
    FISCHER, P
    SCHEFER, J
    GUBELMANN, M
    WILLIAMS, AF
    [J]. INORGANIC CHEMISTRY, 1984, 23 (13) : 1953 - 1957
  • [2] Synthesis of Mg2FeH6 by reactive mechanical alloying:: formation and decomposition properties
    Gennari, FC
    Castro, FJ
    Gamboa, JJA
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 339 (1-2) : 261 - 267
  • [3] Hydrogen desorption behavior from magnesium hydrides synthesized by reactive mechanical alloying
    Gennari, FC
    Castro, FJ
    Urretavizcaya, G
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 321 (01) : 46 - 53
  • [4] Preparation of the hydrides Mg2FeH6 and Mg2CoH5 by mechanical alloying followed by sintering
    Huot, J
    Hayakawa, H
    Akiba, E
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 248 (1-2) : 164 - 167
  • [5] Direct synthesis of Mg2FeH6 by mechanical alloying
    Huot, J
    Boily, S
    Akiba, E
    Schulz, R
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 280 (1-2) : 306 - 309
  • [6] MAGNESIUM MECHANICAL ALLOYS FOR HYDROGEN STORAGE
    IVANOV, E
    KONSTANCHUK, I
    STEPANOV, A
    BOLDYREV, V
    [J]. JOURNAL OF THE LESS-COMMON METALS, 1987, 131 : 25 - 29
  • [7] THE HYDRIDING PROPERTIES OF A MECHANICAL ALLOY WITH COMPOSITION MG-25-PERCENT-FE
    KONSTANCHUK, IG
    IVANOV, EY
    PEZAT, M
    DARRIET, B
    BOLDYREV, VV
    HAGENMULLER, P
    [J]. JOURNAL OF THE LESS-COMMON METALS, 1987, 131 : 181 - 189
  • [8] SYNTHESIS OF MG2FEH6, MG2COH5 AND MG2NIH4 BY HIGH-PRESSURE SINTERING OF THE ELEMENTS
    SELVAM, P
    YVON, K
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1991, 16 (09) : 615 - 617
  • [9] Mechanical alloying and milling
    Suryanarayana, C
    [J]. PROGRESS IN MATERIALS SCIENCE, 2001, 46 (1-2) : 1 - 184