Hydrogen sorption properties of LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8)

Luis Contreras Vasquez; Yinzhe Liu; Christos Paterakis; Daniel Reed; David Book

doi:10.1016/j.ijhydene.2017.03.041

Hydrogen sorption properties of LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8)

Luis Contreras Vasquez, Yinzhe Liu, Christos Paterakis, Daniel Reed, David Book

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Abstract

The synthesis, thermodynamic destabilisation and hydrogen absorption/desorption characteristics of the LixNa1−xMgH3 system with (x = 0, 0.2, 0.5 and 0.8 M ratios) have been investigated. Samples were mechanically milled under argon for 5 h; then characterised by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). Diffraction peaks of NaMgH3 phase shifted to higher angles and lattice parameters decreased due to the Li addition into the system. 2 and 3 endothermic reactions were observed for the Lix substituted samples (x = 0, 0.2, 0.5, 0.8). Li0.8Na0.2MgH3 hydride showed the best performance among the other quaternary hydrides (synthesised in this work) releasing 5.2 wt.% of H2 at 314 °C. Rehydrogenation of the decomposed LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8) samples was experimentally confirmed under 10 bar H2 at ∼250 °C.

Original language	English
Journal	International Journal of Hydrogen Energy
Early online date	31 Mar 2017
DOIs	https://doi.org/10.1016/j.ijhydene.2017.03.041
Publication status	E-pub ahead of print - 31 Mar 2017

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10.1016/j.ijhydene.2017.03.041

Contreras_Vasquez_et_al_Hydrogen_sorption_International_Journal_of_Hydrogen_Energy_2017
Checked for eligibility: 03/08/2017
Accepted author manuscript, 235 KBLicence: Creative Commons: Attribution-NonCommercial-NoDerivs (CC BY-NC-ND)

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@article{57a213bf548a483facb07b786e8f6511,

title = "Hydrogen sorption properties of LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8)",

abstract = "The synthesis, thermodynamic destabilisation and hydrogen absorption/desorption characteristics of the LixNa1−xMgH3 system with (x = 0, 0.2, 0.5 and 0.8 M ratios) have been investigated. Samples were mechanically milled under argon for 5 h; then characterised by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). Diffraction peaks of NaMgH3 phase shifted to higher angles and lattice parameters decreased due to the Li addition into the system. 2 and 3 endothermic reactions were observed for the Lix substituted samples (x = 0, 0.2, 0.5, 0.8). Li0.8Na0.2MgH3 hydride showed the best performance among the other quaternary hydrides (synthesised in this work) releasing 5.2 wt.% of H2 at 314 °C. Rehydrogenation of the decomposed LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8) samples was experimentally confirmed under 10 bar H2 at ∼250 °C.",

author = "{Contreras Vasquez}, Luis and Yinzhe Liu and Christos Paterakis and Daniel Reed and David Book",

year = "2017",

month = mar,

day = "31",

doi = "10.1016/j.ijhydene.2017.03.041",

language = "English",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

}

TY - JOUR

T1 - Hydrogen sorption properties of LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8)

AU - Contreras Vasquez, Luis

AU - Liu, Yinzhe

AU - Paterakis, Christos

AU - Reed, Daniel

AU - Book, David

PY - 2017/3/31

Y1 - 2017/3/31

N2 - The synthesis, thermodynamic destabilisation and hydrogen absorption/desorption characteristics of the LixNa1−xMgH3 system with (x = 0, 0.2, 0.5 and 0.8 M ratios) have been investigated. Samples were mechanically milled under argon for 5 h; then characterised by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). Diffraction peaks of NaMgH3 phase shifted to higher angles and lattice parameters decreased due to the Li addition into the system. 2 and 3 endothermic reactions were observed for the Lix substituted samples (x = 0, 0.2, 0.5, 0.8). Li0.8Na0.2MgH3 hydride showed the best performance among the other quaternary hydrides (synthesised in this work) releasing 5.2 wt.% of H2 at 314 °C. Rehydrogenation of the decomposed LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8) samples was experimentally confirmed under 10 bar H2 at ∼250 °C.

AB - The synthesis, thermodynamic destabilisation and hydrogen absorption/desorption characteristics of the LixNa1−xMgH3 system with (x = 0, 0.2, 0.5 and 0.8 M ratios) have been investigated. Samples were mechanically milled under argon for 5 h; then characterised by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). Diffraction peaks of NaMgH3 phase shifted to higher angles and lattice parameters decreased due to the Li addition into the system. 2 and 3 endothermic reactions were observed for the Lix substituted samples (x = 0, 0.2, 0.5, 0.8). Li0.8Na0.2MgH3 hydride showed the best performance among the other quaternary hydrides (synthesised in this work) releasing 5.2 wt.% of H2 at 314 °C. Rehydrogenation of the decomposed LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8) samples was experimentally confirmed under 10 bar H2 at ∼250 °C.

U2 - 10.1016/j.ijhydene.2017.03.041

DO - 10.1016/j.ijhydene.2017.03.041

M3 - Article

SN - 0360-3199

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

ER -

Hydrogen sorption properties of LixNa1−xMgH3 (x = 0, 0.2, 0.5 & 0.8)

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