Effects of BaRuO3 addition on hydrogen desorption in MgH2

Baricco, Marcello; Rahman, Md. Wasikur; Livraghi, Stefano; Castellero, Alberto; Enzo, Stefano; Giamello, Elio

doi:10.1016/j.jallcom.2011.12.008

Cited by 42 publications

(15 citation statements)

References 47 publications

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“…According to the values in Table 1 , the activation energies computed via the Kissinger method are lower than those calculated via the Arrhenius method due to differences in the experimental environment. 46 In addition, the results are similar to those obtained relating to SDR, in which the values of E a decrease with an increase in the ball-milling time. This further indicates that the dehydrogenation process is a nucleation growth process.…”

Section: Resultssupporting

confidence: 82%

Improving the dynamics of a Nd–Mg–Ni-based alloy by combining Ni element and mechanical milling

Zhang

Hui

et al. 2021

RSC Adv.

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Section: Resultssupporting

confidence: 82%

Improving the dynamics of a Nd–Mg–Ni-based alloy by combining Ni element and mechanical milling

Zhang

Hui

et al. 2021

RSC Adv.

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“…Apparently, the activation energy calculated by Arrhenius method is larger than that by Kissinger method. A very similar result was reported by Baricco et al [39]. Furthermore, we also note that, whichever method, increasing Ni content brings on a decrease in the hydrogen desorption activation energy and the E de values of the alloys decrease with milling time prolonging.…”

Section: Hydrogen Desorption Activation Energysupporting

confidence: 91%

An investigation on hydrogen storage thermodynamics and kinetics of Nd–Mg–Ni-based alloys synthesized by mechanical milling

Zhang

Ren

et al. 2016

International Journal of Hydrogen Energy

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“…It indicates that activation energy counted by Kissinger method has a bit difference from the one by Arrhenius method that the former is smaller than the latter. Baricco et al [36] reported similar values. Therefore, whichever method is used, the as-milled alloy exhibits lower activation energy than the as-spun one.…”

Section: Hydrogen Desorption Activation Energymentioning

confidence: 64%

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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Effects of BaRuO3 addition on hydrogen desorption in MgH2

Cited by 42 publications

References 47 publications

Improving the dynamics of a Nd–Mg–Ni-based alloy by combining Ni element and mechanical milling

Improving the dynamics of a Nd–Mg–Ni-based alloy by combining Ni element and mechanical milling

An investigation on hydrogen storage thermodynamics and kinetics of Nd–Mg–Ni-based alloys synthesized by mechanical milling

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

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