Thermal desorption of hydrogen from magnesium hydride (MgH2): An in situ microscopy study by environmental SEM and TEM

被引：34
作者：
Beattie, Shane D. [1 ]
Setthanan, Uncharat [1 ]
McGrady, G. Sean [1 ]
机构：
[1] Univ New Brunswick, Dept Chem, Fredericton, NB E3B 5A3, Canada
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Metal hydride; In situ; Electron microscopy; Transmission microscopy; Thermal properties; TRANSMISSION ELECTRON-MICROSCOPY; SORPTION KINETICS; STORAGE PROPERTIES; H-SORPTION; NB2O5; NANOPARTICLES; IMPROVEMENT; COMPOSITE; FE; NI;
D O I：
10.1016/j.ijhydene.2011.02.026
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：
As-received magnesium hydride (MgH2), and MgH2 doped with lithium borohydride (LiBH4) and titanium (III) chloride (TiCl3) catalyst were heated - in situ - in an environmental scanning electron microscope (ESEM) and a transmission electron microscope (TEM). Morphological and structural changes during heating and hydrogen desorption were recorded in real time. The studies show that native MgH2 undergoes dramatic and destructive structural changes upon heating, whereas the doped/catalyzed MgH2 mixture showed a benign outgassing with little structural change. Videos of the morphological changes during heating can be viewed online at the McGrady group website: http://www.unb.ca/fredericton/science/chem/smcgrady/group/shanebeattie/InsituESEMandTEM-MgH2. html. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6014 / 6021
页数：8
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共 41 条
  • [1] The influence of SWCNT-metallic nanoparticle mixtures on the desorption properties of milled MgH2 powders
    Amirkhiz, Babak Shalchi
    Danaie, Mohsen
    Mitlin, David
    [J]. NANOTECHNOLOGY, 2009, 20 (20)
  • [2] Fast hydrogen sorption kinetics of nanocrystalline Mg using Nb2O5 as catalyst
    Barkhordarian, G
    Klassen, T
    Bormann, R
    [J]. SCRIPTA MATERIALIA, 2003, 49 (03) : 213 - 217
  • [3] Temporal and spatial imaging of hydrogen storage materials: watching solvent and hydrogen desorption from aluminium hydride by transmission electron microscopy
    Beattie, Shane D.
    Humphries, Terry
    Weaver, Louise
    McGrady, G. Sean
    [J]. CHEMICAL COMMUNICATIONS, 2008, (37) : 4448 - 4450
  • [4] Hydrogen desorption studies of NaAlH4 and LiAlH4 by in situ heating in an ESEM
    Beattie, Shane D.
    McGrady, G. Sean
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (22) : 9151 - 9156
  • [5] Catalytic activity of oxides and halides on hydrogen storage of MgH2
    Bhat, V. V.
    Rougier, A.
    Aymard, L.
    Darok, X.
    Nazri, G.
    Tarascon, J. M.
    [J]. JOURNAL OF POWER SOURCES, 2006, 159 (01) : 107 - 110
  • [6] Addition of nanosized Cr2O3 to magnesium for improvement of the hydrogen sorption properties
    Bobet, JL
    Desmoulins-Krawiec, S
    Grigorova, E
    Cansell, F
    Chevalier, B
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 351 (1-2) : 217 - 221
  • [7] Ti-doped alkali metal aluminium hydrides as potential novel reversible hydrogen storage materials
    Bogdanovic, B
    Schwickardi, M
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 253 (1-2) : 1 - 9
  • [8] A STUDY OF THE ELECTRON-BEAM-INDUCED DECOMPOSITION OF MAGNESIUM HYDRIDE SINGLE-CRYSTALS
    BOKHONOV, B
    IVANOV, E
    BOLDYREV, V
    [J]. MATERIALS LETTERS, 1987, 5 (5-6) : 218 - 221
  • [9] Nb clusters formation in Nb-doped magnesium hydride
    Checchetto, R
    Bazzanella, N
    Miotello, A
    Maurizio, C
    D'Acapito, F
    Mengucci, P
    Barucca, G
    Majni, G
    [J]. APPLIED PHYSICS LETTERS, 2005, 87 (06)
  • [10] Analysis of deformation twins and the partially dehydrogenated microstructure in nanocrystalline magnesium hydride (MgH2) powder
    Danaie, M.
    Tao, S. X.
    Kalisvaart, P.
    Mitlin, D.
    [J]. ACTA MATERIALIA, 2010, 58 (08) : 3162 - 3172
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