Catalytic effect of ZrCrNi alloy on hydriding properties of MgH2

Agarwal, Shivani; Aurora, Annalisa; Jain, Ankur; Jain, I.P.; Montone, A.

doi:10.1016/j.ijhydene.2009.09.034

Cited by 44 publications

(29 citation statements)

References 30 publications

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“…This step should be considered as an activation process which has not been optimized in this study. According to the previous work of Agarwal et al [27], this absorption could be slightly increased. This work is currently underway.…”

Section: Hydrogenation Behaviourmentioning

confidence: 71%

Rich magnesium ternary compound so-called LaCuMg8 derived from La2Mg17. Structure and hydrogenation behavior

2011

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Section: Hydrogenation Behaviourmentioning

confidence: 71%

Rich magnesium ternary compound so-called LaCuMg8 derived from La2Mg17. Structure and hydrogenation behavior

2011

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“…Despite a few works describing kinetics and microstructural modifications upon cycling [20,21], very little is known on the performances of materials submitted to a large number of H 2 charging and discharging; furthermore also the detailed evolution of the sample microstructure is largely missing.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and Kinetic Evolution of Fe Doped MgH2 during H2 Cycling

et al. 2012

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The effect of extended H 2 sorption cycles on the structure and on the hydrogen storage performances of MgH 2 powders with 5 wt% of Fe particle catalyst is reported. MgH 2 powders with and without Fe have been ball milled under Argon, the doped MgH 2 nanocomposite has been cycled under hydrogen pressure up to a maximum of 47 desorption and absorption cycles at 300 °C. After acceleration during the first 10 cycles, the kinetics behavior of doped MgH 2 is constant after extended cycling, in terms of maximum storage capacity and rate of sorption. The major effect of cycling on particle morphology is the progressive extraction of Mg from the MgO shell surrounding the powder particles. The Mg extraction from the MgO shell leaves the catalyst particles inside the hydride particles. Many empty MgO shells are observed in the pure ball milled MgH 2 upon cycling at higher temperature, suggesting that this enhancement of the extraction efficiency is related to the higher operating temperature which favors Mg diffusivity with respect to the H ion one.

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“…4 and ZrNiCr systems over their crystalline states respectively. [25][26][27][28]. For Mg-ZrCrNi system [26], we concluded that 10 wt% ZrCrNi alloy content is sufficient to attain improved characteristics.…”

Section: Introductionmentioning

confidence: 79%

“…In another work by Wang et al [24], hydrogen storage capacity could be increased up to 4.25% combined with excellent kinetics, when ZrFe 1.4 Cr 0.6 was used as a composite element. ZrCrNi is another important alloy capable to strongly modify the properties of Mg [25,26]. Yang et al [25] have shown the superiority of amorphous ZrNi 1.6 Cr 0.…”

Section: Introductionmentioning

confidence: 99%