Hydrogen desorption mechanism of 2NaBH<inf>4</inf> + MgH<inf>2</inf> composite prepared by high-energy ball milling

S. Garroni; C. Pistidda; M. Brunelli; G. B.M. Vaughan; S. Suriñach; M. D. Baró

doi:10.1016/j.scriptamat.2009.02.059

Hydrogen desorption mechanism of 2NaBH<inf>4</inf> + MgH<inf>2</inf> composite prepared by high-energy ball milling

S. Garroni, C. Pistidda, M. Brunelli, G. B.M. Vaughan, S. Suriñach, M. D. Baró

Departament de Física

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The desorption mechanism of 2NaBH4 + MgH2 composite has been investigated. The results show that the chemical interaction between MgH2 and NaBH4 is capable of decreasing the dehydrogenation temperature with respect to the single compounds. The dehydriding reaction starts at around 320 °C with the desorption of the MgH2 to Mg and proceeds via the chemical dismutation of NaBH4 in NaH and an intermediate specie. In situ synchrotron X-ray powder diffraction indicates that MgB2 is one of the final reaction products. © 2009 Acta Materialia Inc.

Idioma original	Anglès
Pàgines (de-a)	1129-1132
Revista	Scripta Materialia
Volum	60
DOIs	https://doi.org/10.1016/j.scriptamat.2009.02.059
Estat de la publicació	Publicada - 1 de juny 2009

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10.1016/j.scriptamat.2009.02.059

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@article{937f7f5b7aac41bd8352fce7bbc9d21a,

title = "Hydrogen desorption mechanism of 2NaBH4 + MgH2 composite prepared by high-energy ball milling",

abstract = "The desorption mechanism of 2NaBH4 + MgH2 composite has been investigated. The results show that the chemical interaction between MgH2 and NaBH4 is capable of decreasing the dehydrogenation temperature with respect to the single compounds. The dehydriding reaction starts at around 320 °C with the desorption of the MgH2 to Mg and proceeds via the chemical dismutation of NaBH4 in NaH and an intermediate specie. In situ synchrotron X-ray powder diffraction indicates that MgB2 is one of the final reaction products. {\textcopyright} 2009 Acta Materialia Inc.",

keywords = "Hydrogen storage, Mechanical milling, Scanning electron microscopy (SEM), Synchrotron radiation, X-ray diffraction (XRD)",

author = "S. Garroni and C. Pistidda and M. Brunelli and Vaughan, {G. B.M.} and S. Suri{\~n}ach and Bar{\'o}, {M. D.}",

year = "2009",

month = jun,

day = "1",

doi = "10.1016/j.scriptamat.2009.02.059",

language = "English",

volume = "60",

pages = "1129--1132",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Hydrogen desorption mechanism of 2NaBH4 + MgH2 composite prepared by high-energy ball milling

AU - Garroni, S.

AU - Pistidda, C.

AU - Brunelli, M.

AU - Vaughan, G. B.M.

AU - Suriñach, S.

AU - Baró, M. D.

PY - 2009/6/1

Y1 - 2009/6/1

N2 - The desorption mechanism of 2NaBH4 + MgH2 composite has been investigated. The results show that the chemical interaction between MgH2 and NaBH4 is capable of decreasing the dehydrogenation temperature with respect to the single compounds. The dehydriding reaction starts at around 320 °C with the desorption of the MgH2 to Mg and proceeds via the chemical dismutation of NaBH4 in NaH and an intermediate specie. In situ synchrotron X-ray powder diffraction indicates that MgB2 is one of the final reaction products. © 2009 Acta Materialia Inc.

AB - The desorption mechanism of 2NaBH4 + MgH2 composite has been investigated. The results show that the chemical interaction between MgH2 and NaBH4 is capable of decreasing the dehydrogenation temperature with respect to the single compounds. The dehydriding reaction starts at around 320 °C with the desorption of the MgH2 to Mg and proceeds via the chemical dismutation of NaBH4 in NaH and an intermediate specie. In situ synchrotron X-ray powder diffraction indicates that MgB2 is one of the final reaction products. © 2009 Acta Materialia Inc.

KW - Hydrogen storage

KW - Mechanical milling

KW - Scanning electron microscopy (SEM)

KW - Synchrotron radiation

KW - X-ray diffraction (XRD)

U2 - 10.1016/j.scriptamat.2009.02.059

DO - 10.1016/j.scriptamat.2009.02.059

M3 - Article

SN - 1359-6462

VL - 60

SP - 1129

EP - 1132

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Hydrogen desorption mechanism of 2NaBH<inf>4</inf> + MgH<inf>2</inf> composite prepared by high-energy ball milling

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