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Journal articles on the topic 'Mg2FeH6'

Author: Grafiati
Published: 9 March 2023
Last updated: 31 July 2025

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1

Leiva, Daniel Rodrigo, André Castro De Souza Villela, Carlos de Oliveira Paiva-Santos, et al. "High-Yield Direct Synthesis of Mg2FeH6 from the Elements by Reactive Milling." Solid State Phenomena 170 (April 2011): 259–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.170.259.

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Magnesium complex hydrides as Mg2FeH6 are interesting phases for hydrogen storage in the solid state, mainly due to its high gravimetric and volumetric densities of H2. However, the synthesis of this hydride is not trivial because the intermetallic phase Mg2Fe does not exist and Mg and Fe are virtually immiscible under equilibrium conditions. In this study, we have systematically studied the influence of the most important processing parameters in reactive milling under hydrogen (RM) for Mg2FeH6 synthesis: milling time, ball-to-powder weight ratio (BPR), hydrogen pressure and type of mill. Low
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2

De Lima, Gisele Ferreira, Daniel Rodrigo Leiva, Tomaz Toshimi Ishikawa, et al. "Hydrogen Sorption Properties of the Complex Hydride Mg2FeH6 Consolidated by HPT." Materials Science Forum 667-669 (December 2010): 1053–58. http://dx.doi.org/10.4028/www.scientific.net/msf.667-669.1053.

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In the present work, we have processed 2Mg-Fe mixtures by reactive milling (RM) under hydrogen atmosphere to synthesize Mg2FeH6 phase in the powder form which were then systematically processed by High Pressure Torsion (HPT) to produce bulk samples. The bulk samples were characterized in terms of microstructural and structural analyses and of hydrogen desorption properties. The hydrogen sorption properties after HPT processing was evaluated in comparison with the Mg2FeH6 powder obtained by RM and with commercial MgH2. HPT processing of Mg2FeH6 can produce bulks with a high density of defects t
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3

Puszkiel, Julián, M. Castro Riglos, José Ramallo-López, et al. "New Insight on the Hydrogen Absorption Evolution of the Mg–Fe–H System under Equilibrium Conditions." Metals 8, no. 11 (2018): 967. http://dx.doi.org/10.3390/met8110967.

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Mg2FeH6 is regarded as potential hydrogen and thermochemical storage medium due to its high volumetric hydrogen (150 kg/m3) and energy (0.49 kWh/L) densities. In this work, the mechanism of formation of Mg2FeH6 under equilibrium conditions is thoroughly investigated applying volumetric measurements, X-ray diffraction (XRD), X-ray absorption near edge structure (XANES), and the combination of scanning transmission electron microscopy (STEM) with energy-dispersive X-ray spectroscopy (EDS) and high-resolution transmission electron microscopy (HR-TEM). Starting from a 2Mg:Fe stoichiometric powder
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4

Julián, Puszkiel, Victoria Castro Riglos M., M. Ramallo-López José, et al. "New Insight on the Hydrogen Absorption Evolution of the Mg–Fe–H System under Equilibrium Conditions." Metals 8, no. 11 (2018): 967. https://doi.org/10.3390/met8110967.

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Mg2FeH6 is regarded as potential hydrogen and thermochemical storage medium due to its high volumetric hydrogen (150 kg/m3) and energy (0.49 kWh/L) densities. In this work, the mechanism of formation of Mg2FeH6 under equilibrium conditions is thoroughly investigated applying volumetric measurements, X-ray diffraction (XRD), X-ray absorption near edge structure (XANES), and the combination of scanning transmission electron microscopy (STEM) with energy-dispersive X-ray spectroscopy (EDS) and high-resolution transmission electron microscopy (HR-TEM). Starting from a 2Mg:Fe stoichiometric powder
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5

Julián, Puszkiel, Gennari Fabiana, Arneodo Larochette P., et al. "Sorption behavior of the MgH2-Mg2FeH6 hydride storage system synthesized by mechanical milling followed by sintering." International Journal of Hydrogen Energy 38 (August 16, 2013): 14618–30. https://doi.org/10.5281/zenodo.3979282.

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The hydrogen sorption behavior of the Mg2FeH6eMgH2 hydride system is investigated via in-situ synchrotron and laboratory powder X-ray diffraction (SR-PXD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), particle size distribution (PSD) and volumetric techniques. The Mg2FeH6eMgH2 hydride system is obtained by mechanical milling in argon atmosphere followed by sintering at high temperature and hydrogen pressure. In-situ SR-PXD results show that upon hydriding MgH2 is a precursor for Mg2FeH6 formation and remained as hydrided phase in the obtained material. Diffusion
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6

Brutti, Sergio, Luca Farina, Francesco Trequattrini, et al. "Extremely Pure Mg2FeH6 as a Negative Electrode for Lithium Batteries." Energies 11, no. 8 (2018): 1952. http://dx.doi.org/10.3390/en11081952.

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Nanocrystalline samples of Mg-Fe-H were synthesized by mixing of MgH2 and Fe in a 2:1 molar ratio by hand grinding (MIX) or by reactive ball milling (RBM) in a high-pressure vial. Hydrogenation procedures were performed at various temperatures in order to promote the full conversion to Mg2FeH6. Pure Mg2FeH6 was obtained only for the RBM material cycled at 485 °C. This extremely pure Mg2FeH6 sample was investigated as an anode for lithium batteries. The reversible electrochemical lithium incorporation and de-incorporation reactions were analyzed in view of thermodynamic evaluations, potentiodyn
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7

Langmi, Henrietta W., G. Sean McGrady, Rebecca Newhouse, and Ewa Rönnebro. "Mg2FeH6–LiBH4 and Mg2FeH6–LiNH2 composite materials for hydrogen storage." International Journal of Hydrogen Energy 37, no. 8 (2012): 6694–99. http://dx.doi.org/10.1016/j.ijhydene.2012.01.020.

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8

Ghaani, Mohammad R., Michele Catti, and Niall J. English. "In Situ Synchrotron X-ray Diffraction Studies of Hydrogen-Desorption Properties of 2LiBH4–Mg2FeH6 Composite." Molecules 26, no. 16 (2021): 4853. http://dx.doi.org/10.3390/molecules26164853.

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Adding a secondary complex metal hydride can either kinetically or thermodynamically facilitate dehydrogenation reactions. Adding Mg2FeH6 to LiBH4 is energetically favoured, since FeB and MgB2 are formed as stable intermediate compounds during dehydrogenation reactions. Such “hydride destabilisation” enhances H2-release thermodynamics from H2-storage materials. Samples of the LiBH4 and Mg2FeH6 with a 2:1 molar ratio were mixed and decomposed under three different conditions (dynamic decomposition under vacuum, dynamic decomposition under a hydrogen atmosphere, and isothermal decomposition). In
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9

PARKER, S. F., K. P. J. WILLIAMS, M. BORTZ, and K. YVON. "ChemInform Abstract: Inelastic Neutron Scattering, Infrared, and Raman Spectroscopic Studies of Mg2FeH6 and Mg2FeD6." ChemInform 29, no. 5 (2010): no. http://dx.doi.org/10.1002/chin.199805010.

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10

Polanski, M., T. Płociński, I. Kunce, and J. Bystrzycki. "Dynamic synthesis of ternary Mg2FeH6." International Journal of Hydrogen Energy 35, no. 3 (2010): 1257–66. http://dx.doi.org/10.1016/j.ijhydene.2009.09.010.

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11

Malka, Iwona, Tomasz Czujko, Jerzy Bystrzycki, and Leszek Jaroszewicz. "The role of Mg2FeH6 formation on the hydrogenation properties of MgH2-FeFx composites." Open Chemistry 9, no. 4 (2011): 701–5. http://dx.doi.org/10.2478/s11532-011-0051-5.

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AbstractThe hydrogenation properties of magnesium hydride mechanically milled with iron fluorides (FeF2 and FeF3), were investigated by Temperature Programmed Desorption (TPD) and volumetric methods using a Sieverts-type apparatus, as prepared upon dehydrogenation and finally upon subsequent hydrogenation. The activation energy of hydrogen desorption (Ea), calculated from the Kissinger formula using TPD measurements obtained with different heating rates, showed significant decreases of Ea in comparison to that of milled MgH2 without any dopants. Moreover, the influence of these metal fluorides
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12

Wang, Yan, Fangyi Cheng, Chunsheng Li, Zhanliang Tao, and Jun Chen. "Preparation and characterization of nanocrystalline Mg2FeH6." Journal of Alloys and Compounds 508, no. 2 (2010): 554–58. http://dx.doi.org/10.1016/j.jallcom.2010.08.119.

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13

Huot, J., S. Boily, E. Akiba, and R. Schulz. "Direct synthesis of Mg2FeH6 by mechanical alloying." Journal of Alloys and Compounds 280, no. 1-2 (1998): 306–9. http://dx.doi.org/10.1016/s0925-8388(98)00725-7.

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14

Retuerto, M., J. Sánchez-Benítez, E. Rodríguez-Cañas, D. Serafini, and J. A. Alonso. "High-pressure synthesis of Mg2FeH6 complex hydride." International Journal of Hydrogen Energy 35, no. 15 (2010): 7835–41. http://dx.doi.org/10.1016/j.ijhydene.2010.05.062.

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15

Ghaani, Mohammad R., Michele Catti, and Angeloclaudio Nale. "Thermodynamics of Dehydrogenation of the 2LiBH4–Mg2FeH6 Composite." Journal of Physical Chemistry C 116, no. 51 (2012): 26694–99. http://dx.doi.org/10.1021/jp310786k.

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16

Lang, Julien, Helmut Fritzche, Alexandre Augusto Cesario Asselli, and Jacques Huot. "In-situ neutron diffraction investigation of Mg2FeH6 dehydrogenation." International Journal of Hydrogen Energy 42, no. 5 (2017): 3087–96. http://dx.doi.org/10.1016/j.ijhydene.2016.11.157.

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17

Polanski, Marek, Daria Nawra, and Dariusz Zasada. "Mg2FeH6 synthesized from plain steel and magnesium hydride." Journal of Alloys and Compounds 776 (March 2019): 1029–40. http://dx.doi.org/10.1016/j.jallcom.2018.10.310.

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18

Deng, Shuaishuai, Xuezhang Xiao, Leyuan Han, et al. "Hydrogen storage performance of 5LiBH4 + Mg2FeH6 composite system." International Journal of Hydrogen Energy 37, no. 8 (2012): 6733–40. http://dx.doi.org/10.1016/j.ijhydene.2012.01.094.

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19

Wang, Yan, Fangyi Cheng, Chunsheng Li, Zhanliang Tao, and Jun Chen. "ChemInform Abstract: Preparation and Characterization of Nanocrystalline Mg2FeH6." ChemInform 41, no. 50 (2010): no. http://dx.doi.org/10.1002/chin.201050018.

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20

Muthusamy, P., and J. Arivudainambi. "Choosing Thermos chemical Storage Materials for High Temperatures Using a MCDM Methodology." Construction and Engineering Structures 1, no. 1 (2022): 38–44. http://dx.doi.org/10.46632/ces/1/1/6.

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Because of its inherent variability, intermittency, and technological and economic difficulties, currently, manufacturing waste heat is underutilized. One of the best methods for removing obstacles, lowering greenhouse gas emissions, and safeguarding the ecosystem at large is energy recovery. The process of choosing materials is crucial to the design of heat storage devices. Complex interactions between a number of variables and parameters are necessary to produce the finest candidate material for a particular appli-cation. The selection of high-temperature thermo chemical storage (TCS) materi
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21

J.A., Puszkiel, Arneodo Larochette P., and Gennari F.C. "Thermodynamic–kinetic characterization of the synthesized Mg2FeH6–MgH2 hydrides mixture." International Journal of Hydrogen Energy 33, no. 13 (2008): 3555–60. https://doi.org/10.1016/j.ijhydene.2007.11.030.

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The increasing relevance of hydrogen economy has generated interest in finding a safe way to transport hydrogen. In order to contribute to a better comprehension of Mg–Fe–H system's behavior, we have examined thermodynamic and kinetic characteristics of a material originally composed of complex hydride Mg2FeH6 (49 wt%), magnesium hydride MgH2 (18 wt%) and unreacted magnesium and iron. Such material was synthesized via mechanical milling of a 2Mg–Fe elemental powder mixture with a subsequent hydriding process at 673&nb
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22

Kurita, Keisuke, Daiichiro Sekiba, Isao Harayama, et al. "Multi-Phonon Excitations in Fe 2p RIXS on Mg2FeH6." Journal of the Physical Society of Japan 84, no. 4 (2015): 043201. http://dx.doi.org/10.7566/jpsj.84.043201.

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23

Herrich, M., N. Ismail, J. Lyubina, A. Handstein, A. Pratt, and O. Gutfleisch. "Synthesis and decomposition of Mg2FeH6 prepared by reactive milling." Materials Science and Engineering: B 108, no. 1-2 (2004): 28–32. http://dx.doi.org/10.1016/j.mseb.2003.10.031.

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24

XU, Chen-chen, Xue-zhang XIAO, Jie SHAO, Lang-xia LIU, Teng QIN, and Li-xin CHEN. "Effects of Ti-based additives on Mg2FeH6 dehydrogenation properties." Transactions of Nonferrous Metals Society of China 26, no. 3 (2016): 791–98. http://dx.doi.org/10.1016/s1003-6326(16)64169-9.

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25

Leiva, Daniel R., Guilherme Zepon, Alexandre A. C. Asselli, et al. "Mechanochemistry and H-sorption properties of Mg2FeH6-based nanocomposites." International Journal of Materials Research 103, no. 9 (2012): 1147–54. http://dx.doi.org/10.3139/146.110806.

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26

María, L. Grasso, Puszkiel Julián, Fernández Albanesi Luisa, Dornheim Martin, Pistidda Claudio, and C. Gennari Fabiana. "CO2 reutilization for methane production via a catalytic process promoted by hydrides." Physical Chemistry Chemical Physics 21 (August 21, 2019): 19825–34. https://doi.org/10.1039/c9cp03826d.

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CO2 emissions have been continuously increasing during the last half of the century with a relevant impact on the planet and are the main contributor to the greenhouse effect and global warming. The development of new technologies to mitigate these emissions poses a challenge. Herein, the recycling of CO2 to produce CH4 selectively by using Mg2FeH6 and Mg2NiH4 complex hydrides as dual conversion promoters and hydrogen sources has been demonstrated. Magnesium-based metal hydrides containing Fe and Ni catalyzed the hydrogenation of CO2 and their total conversion was obtained at 400 1C after 5 h
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27

Asselli, Alexandre Augusto Cesario, Walter José Botta, and Jacques Huot. "Formation reaction of Mg2FeH6: effect of hydrogen absorption/desorption kinetics." Materials Research 16, no. 6 (2013): 1373–78. http://dx.doi.org/10.1590/s1516-14392013005000122.

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28

Zhang, Xuanzhou, Rong Yang, Jianglan Qu, et al. "The synthesis and hydrogen storage properties of pure nanostructured Mg2FeH6." Nanotechnology 21, no. 9 (2010): 095706. http://dx.doi.org/10.1088/0957-4484/21/9/095706.

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29

Li, Guanqiao, Motoaki Matsuo, Shigeyuki Takagi, et al. "Thermodynamic Properties and Reversible Hydrogenation of LiBH4–Mg2FeH6 Composite Materials." Inorganics 5, no. 4 (2017): 81. http://dx.doi.org/10.3390/inorganics5040081.

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30

Orgaz, E., and M. Gupta. "Theoretical study of the X-ray absorption spectra of Mg2FeH6." Journal of the Less Common Metals 130 (March 1987): 293–99. http://dx.doi.org/10.1016/0022-5088(87)90121-4.

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31

PUSZKIEL, J., P. ARNEODOLAROCHETTE, and F. GENNARI. "Thermodynamic–kinetic characterization of the synthesized Mg2FeH6–MgH2 hydrides mixture." International Journal of Hydrogen Energy 33, no. 13 (2008): 3555–60. http://dx.doi.org/10.1016/j.ijhydene.2007.11.030.

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32

Niaz, N. A., I. Ahmad, N. R. Khalid, E. Ahmed, S. M. Abbas, and N. Jabeen. "Preparation of Mg2FeH6Nanoparticles for Hydrogen Storage Properties." Journal of Nanomaterials 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/610642.

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Magnesium (Mg) and iron (Fe) nanoparticles are prepared by thermal decomposition of bipyridyl complexes of metals. These prepared Mg-Fe (2 : 1) nanoparticles are hydrogenated under 4 MPa hydrogen pressure and 673 K for 48 hours to achieve Mg2FeH6. Their structural analysis was assessed by applying manifold techniques. The hydrogen storage properties of prepared compound were measured by Sieverts type apparatus. The desorption kinetics were measured by high pressure thermal desorption spectrometer (HP-TDS). More than 5 wt% hydrogen released was obtained by the Mg2FeH6within 5 min, and during re
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33

LI, Song-lin, Sheng-long TANG, Yi LIU, Shu-ke PENG, and Jian-min CUI. "Synthesis of nanostructured Mg2FeH6 hydride and hydrogen sorption properties of complex." Transactions of Nonferrous Metals Society of China 20, no. 12 (2010): 2281–88. http://dx.doi.org/10.1016/s1003-6326(10)60641-3.

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34

Gennari, F. C., F. J. Castro, and J. J. Andrade Gamboa. "Synthesis of Mg2FeH6 by reactive mechanical alloying: formation and decomposition properties." Journal of Alloys and Compounds 339, no. 1-2 (2002): 261–67. http://dx.doi.org/10.1016/s0925-8388(01)02009-6.

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35

Huen, Priscilla, and Dorthe B. Ravnsbæk. "All-solid-state lithium batteries – The Mg2FeH6-electrode LiBH4-electrolyte system." Electrochemistry Communications 87 (February 2018): 81–85. http://dx.doi.org/10.1016/j.elecom.2018.01.001.

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36

Yang, Shuo, Hui Wang, Liuzhang Ouyang, et al. "Enhanced electrochemical lithium storage performance of Mg2FeH6 anode with TiO2 coating." International Journal of Hydrogen Energy 43, no. 20 (2018): 9803–14. http://dx.doi.org/10.1016/j.ijhydene.2018.03.209.

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37

Baran, Agata, and Marek Polański. "Magnesium-Based Materials for Hydrogen Storage—A Scope Review." Materials 13, no. 18 (2020): 3993. http://dx.doi.org/10.3390/ma13183993.

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Magnesium hydride and selected magnesium-based ternary hydride (Mg2FeH6, Mg2NiH4, and Mg2CoH5) syntheses and modification methods, as well as the properties of the obtained materials, which are modified mostly by mechanical synthesis or milling, are reviewed in this work. The roles of selected additives (oxides, halides, and intermetallics), nanostructurization, polymorphic transformations, and cyclic stability are described. Despite the many years of investigations related to these hydrides and the significant number of different additives used, there are still many unknown factors that affec
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38

Asselli, Alexandre, and Jacques Huot. "Investigation of Effect of Milling Atmosphere and Starting Composition on Mg2FeH6 Formation." Metals 4, no. 3 (2014): 388–400. http://dx.doi.org/10.3390/met4030388.

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39

Thiangviriya, Sophida, Praphatsorn Plerdsranoy, Annbritt Hagenah, et al. "Effects of Ni-loading contents on dehydrogenation kinetics and reversibility of Mg2FeH6." International Journal of Hydrogen Energy 46, no. 63 (2021): 32099–109. http://dx.doi.org/10.1016/j.ijhydene.2021.06.206.

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40

Matysina, Z. A., S. Yu Zaginaichenko, D. V. Shchur, and M. T. Gabdullin. "Sorption Properties of Iron–Magnesium and Nickel–Magnesium Mg2FeH6 and Mg2NiH4 Hydrides." Russian Physics Journal 59, no. 2 (2016): 177–89. http://dx.doi.org/10.1007/s11182-016-0757-0.

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41

Zhang, Weijin, Zhao Zhang, Xianchao Jia, Jianping Guo, Junhu Wang, and Ping Chen. "Metathesis of Mg2FeH6 and LiNH2 leading to hydrogen production at low temperatures." Physical Chemistry Chemical Physics 20, no. 15 (2018): 9833–37. http://dx.doi.org/10.1039/c8cp00720a.

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The metathesis reaction between Mg<sub>2</sub>FeH<sub>6</sub> and LiNH<sub>2</sub> produces Li<sub>4</sub>FeH<sub>6</sub>, which provides an alternative route for synthesizing Li<sub>4</sub>FeH<sub>6</sub> under mild conditions.
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42

Berlouis, L. E. A., E. Cabrera, E. Hall-Barientos, et al. "Thermal analysis investigation of hydriding properties of nanocrystalline Mg–Ni- and Mg–Fe-based alloys prepared by high-energy ball milling." Journal of Materials Research 16, no. 1 (2001): 45–57. http://dx.doi.org/10.1557/jmr.2001.0012.

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The hydrogen loading characteristics of nanocrystalline Mg, Mg–Ni (Ni from 0.1 to 10 at.%), and Mg–Fe (Fe from 1 to 10 at.%) alloys in 3 MPa H2 were examined using high pressure differential scanning calorimetry and thermogravimetric analysis. All samples showed rapid uptake of hydrogen. A decrease in the onset temperature for hydrogen absorption was observed with increasing Ni and Fe alloy content, but the thermal signatures obtained suggested that only Mg was involved in the hydriding reaction; i.e., no clear evidence was found for the intermetallic hydrides Mg2NiH4 and Mg2FeH6. Hydrogen loa
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43

Leiva, Daniel, Santiago Figueroa, Bárbara Terra, et al. "Structural Characterization of Mg2CoH5-based Nanocomposites for Hydrogen Storage." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C741. http://dx.doi.org/10.1107/s2053273314092584.

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Hydrogen is considered the ideal energy carrier, mainly due to its heating power, the highest among all chemical fuels, and to possibility of using it in fuel cells, therefore with efficiency and producing only water as by-product. However, the development of safe and effective hydrogen storage solutions remains as a challenge of applied research. MgH2, Mg2FeH6 and Mg2CoH5complex hydrides are promising materials for hydrogen storage, avoiding the inconvenient of gaseous or liquid storage alternatives. The main attractives of these phases are their volumetric and gravimetric hydrogen capacities
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44

Asselli, Alexandre Augusto Cesario, Alberto Moreira Jorge Junior, Tomaz Toshimi Ishikawa, and Walter José Botta Filho. "Mg2FeH6-based nanocomposites with high capacity of hydrogen storage processed by reactive milling." Materials Research 15, no. 2 (2012): 229–35. http://dx.doi.org/10.1590/s1516-14392012005000027.

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45

Catti, Michele, Mohammad R. Ghaani, and Ilya Pinus. "Overpressure Role in Isothermal Kinetics of H2 Desorption–Absorption: the 2LiBH4–Mg2FeH6 System." Journal of Physical Chemistry C 117, no. 50 (2013): 26460–65. http://dx.doi.org/10.1021/jp409009n.

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46

Asano, Kohta, Hyunjeong Kim, Kouji Sakaki, et al. "Metallurgical Synthesis of Mg2FexSi1–x Hydride: Destabilization of Mg2FeH6 Nanostructured in Templated Mg2Si." Inorganic Chemistry 59, no. 5 (2020): 2758–64. http://dx.doi.org/10.1021/acs.inorgchem.9b03117.

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47

Huot, J., H. Hayakawa, and E. Akiba. "Preparation of the hydrides Mg2FeH6 and Mg2CoH5 by mechanical alloying followed by sintering." Journal of Alloys and Compounds 248, no. 1-2 (1997): 164–67. http://dx.doi.org/10.1016/s0925-8388(96)02705-3.

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48

Castro, F. J., and F. C. Gennari. "Effect of the nature of the starting materials on the formation of Mg2FeH6." Journal of Alloys and Compounds 375, no. 1-2 (2004): 292–96. http://dx.doi.org/10.1016/j.jallcom.2003.11.147.

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49

SELVAM, P., and K. YVON. "Synthesis of Mg2FeH6, Mg2CoH5 and Mg2NiH4 by high-pressure sintering of the elements." International Journal of Hydrogen Energy 16, no. 9 (1991): 615–17. http://dx.doi.org/10.1016/0360-3199(91)90085-w.

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50

Asselli, A. A. C., D. R. Leiva, A. M. Jorge, T. T. Ishikawa, and W. J. Botta. "Synthesis and hydrogen sorption properties of Mg2FeH6–MgH2 nanocomposite prepared by reactive milling." Journal of Alloys and Compounds 536 (September 2012): S250—S254. http://dx.doi.org/10.1016/j.jallcom.2011.12.103.

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