Hydrogen storage in magnesium based-composite hydride through hydriding combustion synthesis

Kim, Jin-Ho; Kim, Jiho; Hwang, Kwang-Taek; Kang, Yong‐Mook

doi:10.1016/j.ijhydene.2010.06.099

Cited by 22 publications

(7 citation statements)

References 28 publications

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“…Nagai et al, Raman et al and many others [61][62][63][64][65][66] have studied composite systems comprising of Mg together with AB 5 /AB/AB 2 ingredients and reported enhanced absorption/desorption performances. Recently, Kim et al [66] have shown that the new composite Mg-20 wt% ZrFe 2 prepared through hydriding combustion synthesis (HCS) route rapidly absorbs $5.7 wt% at 300 1C and the capacity is very consistent during long term cycling runs. Czujko et al have studied the composite mixtures of MgH 2 -LiAlH 4 and NaBH 4 -MgH 2 hydrides prepared by mechanical milling method [67].…”

Section: Light Weight Binary Hydrides and Their Compositesmentioning

confidence: 99%

High capacity hydrogen storage: Basic aspects, new developments and milestones

2012

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Section: Light Weight Binary Hydrides and Their Compositesmentioning

confidence: 99%

High capacity hydrogen storage: Basic aspects, new developments and milestones

2012

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“…Mg 2 Ni combines with hydrogen to form Mg 2 NiH 4 hydride and highly improves the hydrogenation kinetic of magnesium [6]. Concerning synthesis processes of materials, melting is the conventional technique to prepare Mg 2 Ni [7]. However, the large difference in melting points and vapor pressures between Mg and Ni make difficult the formation of high quality Mg 2 Ni [7].…”

Section: Introductionmentioning

confidence: 99%

“…Concerning synthesis processes of materials, melting is the conventional technique to prepare Mg 2 Ni [7]. However, the large difference in melting points and vapor pressures between Mg and Ni make difficult the formation of high quality Mg 2 Ni [7]. These drawbacks could be avoided by using the mechanical alloying (MA) process since the reaction between Mg and Ni occurs easily and reliably in the solid state [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Study of hydrogen absorption kinetics of Mg2Ni-based powders produced by high-injected shock power mechanical alloying and subsequent annealing

Marzouki¹,

Ghodbane²,

Abdellaoui³

2013

Mater Renew Sustain Energy

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Mg 2 Ni-based compounds were prepared using a high-energy milling technique, with a planetary ball mill, and subsequent annealing at 350°C. X-ray diffraction analyses revealed that Mg 2 Ni phase was obtained after 10 milling hours, in addition to Ni phase. Increasing the ballmilling duration from 10 to 17 h causes a decrease in the crystal size of particles from 93 to 76 nm. However, the subsequent annealing of all Mg 2 Ni-based materials highly increases their crystallite sizes with calculated values in the range of 261-235 nm. In the same way, X-ray diffraction patterns of annealed compounds show the presence of highly crystallized Mg 2 Ni phases. The particle size of Mg 2 Ni/Ni particles is estimated at 25 lm after 10 milling hours and drops to 5 lm at longer times. The scanning electron microscopy images of Mg 2 Ni/Ni particles demonstrated a drastic increase of their sizes up to 100 lm upon annealing. The hydrogenation reactivity and kinetic of Mg 2 Ni/Ni were both characterized by solid-gas reactions. The hydrogen absorption capacity value was about 3.5 H/f.u for milled and annealed Mg 2 Ni/Ni compound. The highest hydrogen absorption kinetic was obtained during the first 5 h of absorption time, where 95 % of the maximum absorption capacity was reached.

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“…The next category of catalyst material is not very different from the hydride materials, the only difference being their use in an unhydrided state in contrast with TiH 2 , NbH, or other complex hydrides. Several studies have focused on various alloys such as LaNi 5 [154], FeTi [155,156], Ti-V-Cr alloys [157][158][159][160], and Zr based alloys [161][162][163][164][165][166][167][168][169][170][171]. Vijay et al [155] studied the effect of FeTi and FeTiMn alloys in different proportions (5-40 wt%).…”

Section: Hydride Hydride Forming Alloys and Sulfide As Catalystmentioning

confidence: 99%

Catalytic Tuning of Sorption Kinetics of Lightweight Hydrides: A Review of the Materials and Mechanism

2018

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Hydrogen storage materials have been a subject of intensive research during the last 4 decades. Several developments have been achieved in regard of finding suitable materials as per the US-DOE targets. While the lightweight metal hydrides and complex hydrides meet the targeted hydrogen capacity, these possess difficulties of hard thermodynamics and sluggish kinetics of hydrogen sorption. A number of methods have been explored to tune the thermodynamic and kinetic properties of these materials. The thermodynamic constraints could be resolved using an intermediate step of alloying or by making reactive composites with other hydrogen storage materials, whereas the sluggish kinetics could be improved using several approaches such as downsizing and the use of catalysts. The catalyst addition reduces the activation barrier and enhances the sorption rate of hydrogen absorption/desorption. In this review, the catalytic modifications of lightweight hydrogen storage materials are reported and the mechanism towards the improvement is discussed.

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Hydrogen storage in magnesium based-composite hydride through hydriding combustion synthesis

Cited by 22 publications

References 28 publications

High capacity hydrogen storage: Basic aspects, new developments and milestones

High capacity hydrogen storage: Basic aspects, new developments and milestones

Study of hydrogen absorption kinetics of Mg2Ni-based powders produced by high-injected shock power mechanical alloying and subsequent annealing

Catalytic Tuning of Sorption Kinetics of Lightweight Hydrides: A Review of the Materials and Mechanism

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