Mechanochemical synthesis of NaBH<inf>4</inf> starting from NaH-MgB <inf>2</inf> reactive hydride composite system

S. Garroni; C. Bonatto Minella; D. Pottmaier; C. Pistidda; C. Milanese; A. Marini; S. Enzo; G. Mulas; M. Dornheim; M. Baricco; O. Gutfleisch; S. Suriñach; M. Dolors Baró

doi:https://doi.org/10.1016/j.ijhydene.2012.11.136

Mechanochemical synthesis of NaBH<inf>4</inf> starting from NaH-MgB <inf>2</inf> reactive hydride composite system

S. Garroni, C. Bonatto Minella, D. Pottmaier, C. Pistidda, C. Milanese, A. Marini, S. Enzo, G. Mulas, M. Dornheim, M. Baricco, O. Gutfleisch, S. Suriñach, M. Dolors Baró

Research output: Contribution to journal › Article › Research › peer-review

18 Citations (Scopus)

Abstract

The present investigation focuses on a new synthesis route of NaBH 4 starting from the 2NaH + MgB2 system subjected to mechanochemical activation under reactive hydrogen atmosphere. The milling process was carried out under two different hydrogen pressures (1 and 120 bar) with two different rotation speeds (300 and 550 rpm). The reaction products were characterized by ex-situ solid state magic angle spinning (MAS) nuclear magnetic resonance (NMR), ex-situ X-ray powder diffraction (XRPD) and Infrared Spectroscopy (IR). From the results of these analyses, it can be concluded that milling in all the considered conditions led to the formation of NaBH 4 (cubic-Fm-3m). In particular, a reaction yield of 5 and 14 wt% is obtained after 20 h of milling at 120 bar of H2 for the tests performed at 300 rpm and 550 rpm, respectively. The presence of MgH2 is also detected among the final products on the as milled powders. The influence of the milling conditions and the evaluation of the parameters related the mechanochemical process are here discussed. Copyright © 2012, Hydrogen Energy Publications, LLC.

Original language	English
Pages (from-to)	2363-2369
Journal	International Journal of Hydrogen Energy
Volume	38
DOIs	https://doi.org/10.1016/j.ijhydene.2012.11.136
Publication status	Published - 19 Feb 2013

Keywords

Gasesolid reaction
Hydrogen storage
MAS-NMR
Mechanochemistry
Reactive hydride composites
Sodium borohydride

Access to Document

https://doi.org/10.1016/j.ijhydene.2012.11.136

Cite this

Garroni, S., Minella, C. B., Pottmaier, D., Pistidda, C., Milanese, C., Marini, A., Enzo, S., Mulas, G., Dornheim, M., Baricco, M., Gutfleisch, O., Suriñach, S., & Baró, M. D. (2013). Mechanochemical synthesis of NaBH<inf>4</inf> starting from NaH-MgB <inf>2</inf> reactive hydride composite system. International Journal of Hydrogen Energy, 38, 2363-2369. https://doi.org/10.1016/j.ijhydene.2012.11.136

@article{1e506967cdea48f9befb20329a95761a,

title = "Mechanochemical synthesis of NaBH4 starting from NaH-MgB 2 reactive hydride composite system",

abstract = "The present investigation focuses on a new synthesis route of NaBH 4 starting from the 2NaH + MgB2 system subjected to mechanochemical activation under reactive hydrogen atmosphere. The milling process was carried out under two different hydrogen pressures (1 and 120 bar) with two different rotation speeds (300 and 550 rpm). The reaction products were characterized by ex-situ solid state magic angle spinning (MAS) nuclear magnetic resonance (NMR), ex-situ X-ray powder diffraction (XRPD) and Infrared Spectroscopy (IR). From the results of these analyses, it can be concluded that milling in all the considered conditions led to the formation of NaBH 4 (cubic-Fm-3m). In particular, a reaction yield of 5 and 14 wt% is obtained after 20 h of milling at 120 bar of H2 for the tests performed at 300 rpm and 550 rpm, respectively. The presence of MgH2 is also detected among the final products on the as milled powders. The influence of the milling conditions and the evaluation of the parameters related the mechanochemical process are here discussed. Copyright {\textcopyright} 2012, Hydrogen Energy Publications, LLC.",

keywords = "Gasesolid reaction, Hydrogen storage, MAS-NMR, Mechanochemistry, Reactive hydride composites, Sodium borohydride",

author = "S. Garroni and Minella, {C. Bonatto} and D. Pottmaier and C. Pistidda and C. Milanese and A. Marini and S. Enzo and G. Mulas and M. Dornheim and M. Baricco and O. Gutfleisch and S. Suri{\~n}ach and Bar{\'o}, {M. Dolors}",

year = "2013",

month = feb,

day = "19",

doi = "https://doi.org/10.1016/j.ijhydene.2012.11.136",

language = "English",

volume = "38",

pages = "2363--2369",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Limited",

}

Garroni, S, Minella, CB, Pottmaier, D, Pistidda, C, Milanese, C, Marini, A, Enzo, S, Mulas, G, Dornheim, M, Baricco, M, Gutfleisch, O, Suriñach, S & Baró, MD 2013, 'Mechanochemical synthesis of NaBH<inf>4</inf> starting from NaH-MgB <inf>2</inf> reactive hydride composite system', International Journal of Hydrogen Energy, vol. 38, pp. 2363-2369. https://doi.org/10.1016/j.ijhydene.2012.11.136

TY - JOUR

T1 - Mechanochemical synthesis of NaBH4 starting from NaH-MgB 2 reactive hydride composite system

AU - Garroni, S.

AU - Minella, C. Bonatto

AU - Pottmaier, D.

AU - Pistidda, C.

AU - Milanese, C.

AU - Marini, A.

AU - Enzo, S.

AU - Mulas, G.

AU - Dornheim, M.

AU - Baricco, M.

AU - Gutfleisch, O.

AU - Suriñach, S.

AU - Baró, M. Dolors

PY - 2013/2/19

Y1 - 2013/2/19

N2 - The present investigation focuses on a new synthesis route of NaBH 4 starting from the 2NaH + MgB2 system subjected to mechanochemical activation under reactive hydrogen atmosphere. The milling process was carried out under two different hydrogen pressures (1 and 120 bar) with two different rotation speeds (300 and 550 rpm). The reaction products were characterized by ex-situ solid state magic angle spinning (MAS) nuclear magnetic resonance (NMR), ex-situ X-ray powder diffraction (XRPD) and Infrared Spectroscopy (IR). From the results of these analyses, it can be concluded that milling in all the considered conditions led to the formation of NaBH 4 (cubic-Fm-3m). In particular, a reaction yield of 5 and 14 wt% is obtained after 20 h of milling at 120 bar of H2 for the tests performed at 300 rpm and 550 rpm, respectively. The presence of MgH2 is also detected among the final products on the as milled powders. The influence of the milling conditions and the evaluation of the parameters related the mechanochemical process are here discussed. Copyright © 2012, Hydrogen Energy Publications, LLC.

AB - The present investigation focuses on a new synthesis route of NaBH 4 starting from the 2NaH + MgB2 system subjected to mechanochemical activation under reactive hydrogen atmosphere. The milling process was carried out under two different hydrogen pressures (1 and 120 bar) with two different rotation speeds (300 and 550 rpm). The reaction products were characterized by ex-situ solid state magic angle spinning (MAS) nuclear magnetic resonance (NMR), ex-situ X-ray powder diffraction (XRPD) and Infrared Spectroscopy (IR). From the results of these analyses, it can be concluded that milling in all the considered conditions led to the formation of NaBH 4 (cubic-Fm-3m). In particular, a reaction yield of 5 and 14 wt% is obtained after 20 h of milling at 120 bar of H2 for the tests performed at 300 rpm and 550 rpm, respectively. The presence of MgH2 is also detected among the final products on the as milled powders. The influence of the milling conditions and the evaluation of the parameters related the mechanochemical process are here discussed. Copyright © 2012, Hydrogen Energy Publications, LLC.

KW - Gasesolid reaction

KW - Hydrogen storage

KW - MAS-NMR

KW - Mechanochemistry

KW - Reactive hydride composites

KW - Sodium borohydride

U2 - https://doi.org/10.1016/j.ijhydene.2012.11.136

DO - https://doi.org/10.1016/j.ijhydene.2012.11.136

M3 - Article

SN - 0360-3199

VL - 38

SP - 2363

EP - 2369

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

ER -

Mechanochemical synthesis of NaBH<inf>4</inf> starting from NaH-MgB <inf>2</inf> reactive hydride composite system

Abstract

Keywords

Access to Document

Fingerprint

Cite this