Hydrogen desorption performance of high-energy ball milled Mg 2 NiH 4 catalyzed by multi-walled carbon nanotubes coupling with TiF 3

Hou, Xiaojiang; Hu, Rui; Zhang, Tiebang; Kou, Hongchao; Song, Wenjie; Li, Jinshan

doi:10.1016/j.ijhydene.2014.09.170

Cited by 51 publications

(9 citation statements)

References 52 publications

(32 reference statements)

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“…Elements such as Ni and Cu are the ideal candidates to alloy with Mg [18][19][20]. In 1960s, Mg 2 Ni [18] and Mg 2 Cu [21] were reported as hydrogen storage alloys, and the two alloys involved different reaction pathways [22][23][24][25][26]. Tran et al [27] focused on the decomposition process of Mg 2 NiH 4 , and examined the phase transformation detail by in-situ transmission electron microscopy (TEM) imaging.…”

Section: Alloyingmentioning

confidence: 99%

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Huang

et al. 2019

Sci. China Mater.

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As typical high-capacity complex hydrides, lightweight hydrides have attracted intensive attention due to their high gravimetric and volumetric energy densities of hydrogen storage. However, lightweight hydrides also have high thermodynamic stability and poor kinetics, so they ususally require high hydrogen desorption temperature and show inferior reversibility under mild conditions. This review summarizes recent progresses on the endeavor of overcoming thermodynamic and kinetic challenges for Mg based hydrides, lightweight metal borohydrides and alanates. First, the current state, advantages and challenges for Mg-based hydrides and lightweight metal hydrides are introduced. Then, alloying, nanoscaling and appropriate doping techniques are demonstrated to decrease the hydrogen desorption temperature and promote the reversibility behavior in lightweight hydrides. Selected scaffolds materials, approaches for synthesis of nanoconfined systems and hydriding-dehydriding properties are reviewed. In addition, the evolution of various dopants and their effects on the hydrogen storage properties of lightweight hydrides are investigated, and the relevant catalytic mechanisms are summarized. Finally, the remaining challenges and the sustainable research efforts are discussed.

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Section: Alloyingmentioning

confidence: 99%

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Huang

et al. 2019

Sci. China Mater.

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“…Structural transformations causing color and property changes in Mg 2 NiH 4 observed and described by some authors are of interest as well [ 1 , 2 , 3 , 4 ]. Extensive studies on the formation and decomposition of this hydride were also carried out by some other authors such as Li et al [ 5 , 6 , 7 ], Cermak et al [ 8 , 9 , 10 ], Orimo et al [ 11 , 12 ], Varin et al [ 13 , 14 ], and others [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Hydrogen absorption by Mg 2 Ni leads to the formation of several phases—two low-temperature with monoclinic and orthorhombic crystal structures and a high-temperature one with a cubic structure.…”

Section: Introductionmentioning

confidence: 99%

Facilitated Synthesis of Mg2Ni Based Composites with Attractive Hydrogen Sorption Properties

et al. 2021

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Composites based on Mg2Ni with 5% activated carbon from apricot stones (ACAP) have been prepared by ball milling and subsequent annealing in hydrogen atmosphere. The purpose of the primary metal (Mg, Ni, and V) milling was to reduce the particle size and achieve a good contact between them, without forming intermetallic compounds. During hydriding/dehydriding at 300 °C the amount of the Mg2Ni phase progressively increased, and after 10 cycles about 50% Mg2(Ni,V) was achieved. The hydrogenation produced mainly Mg2NiH4, but small amounts of MgH2 and VHx were also detected in the powder mixture. Relatively high hydrogen storage capacity and fast hydriding/dehydriding kinetics of the Mg2.1Ni0.7V0.3—5 wt.% ACAP composite were determined both from hydrogen gas phase and electrochemically.

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“…Lass [23] reported that a rapidly solidified Mg 85 Ni 10 Pd 5 alloy exhibits a reversible hydrogen storage density of 5 wt% H 2 at the temperature of 473 K, and this temperature is near upon 100 K below the typical temperature required for Mg-based alloys. Shahi et al [24] prepared MgH 2 -ZrFe 2 H x nanocomposites by reactive mechanical milling technique and found that the composite containing ZrFe 2 or ZrFe 2 H x brings on that the temperature of hydrogen desorption, respectively, decreases from 683 to 623 or 563 K. Hou et al [25] reported the hydrogen desorption property of Mg 2 NiH 4 prepared by high-energy ball milling, which utilized the multi-walled carbon nanotube combing with TiF 3 as a catalyst, and found that the hydrogen desorption temperature (T D ) and activation energy (E a ) of Mg 2 NiH 4 were lowered to 503 K (516.7 K for Mg 2 NiH 4 ) and 53.24 kJ/mol (90.13 kJ/mol for Mg 2 NiH 4 ), respectively.…”

Section: Introductionmentioning

confidence: 99%

A Comparison Study of Hydrogen Storage Thermodynamics and Kinetics of YMg11Ni Alloy Prepared by Melt Spinning and Ball Milling

Zhang

Gao³

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

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Melt spinning (MS) and ball milling (BM) were employed to fabricate YMg 11 Ni alloy, and their structures and hydrogen storage performances were examined. The results reveal that the as-spun and as-milled alloys both exhibit the nanocrystalline and amorphous structure. The as-milled alloy shows a larger hydrogen absorption capacity as compared with the as-spun alloy. More than that, the as-milled alloy exhibits lower onset hydrogen desorption temperature than the as-spun one, which are 549.8 and 560.9 K, respectively. Additionally, the as-milled alloy shows a superior hydrogen desorption property to the as-spun one. On the basis of the time needed by desorbing hydrogen of 3 wt% H 2 , for the asmilled alloy, it needs 1106, 456, 343, and 180 s corresponding to hydrogen desorption temperatures of 593, 613, 633, and 653 K. However, for the as-spun alloy, the time needed is greater than 2928, 842, 356, and 197 s corresponding to the same temperatures. Hydrogen desorption activation energies of as-milled and as-spun alloys are 98.01 and 105.49 kJ/mol, respectively, which is responsible for that the as-milled alloy possesses a much faster dehydriding rate. By means of the measurement of pressure-composition-temperature (P-C-T) curves, the dehydrogenation enthalpy change of the alloys prepared by MS (DH de (MS)) and BM (DH de (BM)) is 81.84 and 79.46 kJ/mol, respectively, viz. DH de (MS) [ DH de (BM).

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Hydrogen desorption performance of high-energy ball milled Mg 2 NiH 4 catalyzed by multi-walled carbon nanotubes coupling with TiF 3

Cited by 51 publications

References 52 publications

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Lightweight hydrides nanocomposites for hydrogen storage: Challenges, progress and prospects

Facilitated Synthesis of Mg2Ni Based Composites with Attractive Hydrogen Sorption Properties

A Comparison Study of Hydrogen Storage Thermodynamics and Kinetics of YMg11Ni Alloy Prepared by Melt Spinning and Ball Milling

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