Experimental evidence of Ca[B<inf>12</inf>H<inf>12</inf>] formation during decomposition of a Ca(BH<inf>4</inf>)<inf>2</inf> + MgH<inf>2</inf> based reactive hydride composite

Christian Bonatto Minella; Sebastiano Garroni; David Olid; Francesc Teixidor; Claudio Pistidda; Inge Lindemann; Oliver Gutfleisch; Maria Dolores Baró; Rüdiger Bormann; Thomas Klassen; Martin Dornheim

doi:https://doi.org/10.1021/jp204598a

Experimental evidence of Ca[B<inf>12</inf>H<inf>12</inf>] formation during decomposition of a Ca(BH<inf>4</inf>)<inf>2</inf> + MgH<inf>2</inf> based reactive hydride composite

Christian Bonatto Minella, Sebastiano Garroni, David Olid, Francesc Teixidor, Claudio Pistidda, Inge Lindemann, Oliver Gutfleisch, Maria Dolores Baró, Rüdiger Bormann, Thomas Klassen, Martin Dornheim

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

37 Citations (Scopus)

Abstract

The combination of Ca(BH4)2 and MgH2 materials results in a composite with remarkable hydrogen storage properties. However, full reversibility upon the (re)hydrogenation reaction has not yet been achieved. The poor reversibility is shown to be linked to the formation of stable intermediate phases or side products upon decomposition. In this work, we show, for the first time, the clear experimental evidence of CaB 12H12 among the decomposition products of a Ca(BH 4)2 + MgH2 composite. A combination of 11B Magic Angle Spinning-Nuclear Magnetic Resonance ( 11B{1H} MAS NMR), ex situ X-ray diffraction (XRD) and Rietveld analysis are presented. An assessment of the (de)hydrogenation and (re)hydrogenation reactions of Ca(BH4)2 + MgH2 composite is reported. The experimental results provided in this work highlight the reasons for the limited reversibility observed in the Ca(BH 4)2 + MgH2 composite upon (re)hydrogenation. © 2011 American Chemical Society.

Original language	English
Pages (from-to)	18010-18014
Journal	Journal of Physical Chemistry C
Volume	115
DOIs	https://doi.org/10.1021/jp204598a
Publication status	Published - 15 Sep 2011

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Bonatto Minella, C., Garroni, S., Olid, D., Teixidor, F., Pistidda, C., Lindemann, I., Gutfleisch, O., Baró, M. D., Bormann, R., Klassen, T., & Dornheim, M. (2011). Experimental evidence of Ca[B<inf>12</inf>H<inf>12</inf>] formation during decomposition of a Ca(BH<inf>4</inf>)<inf>2</inf> + MgH<inf>2</inf> based reactive hydride composite. Journal of Physical Chemistry C, 115, 18010-18014. https://doi.org/10.1021/jp204598a

Bonatto Minella, Christian ; Garroni, Sebastiano ; Olid, David ; Teixidor, Francesc ; Pistidda, Claudio ; Lindemann, Inge ; Gutfleisch, Oliver ; Baró, Maria Dolores ; Bormann, Rüdiger ; Klassen, Thomas ; Dornheim, Martin. / Experimental evidence of Ca[B<inf>12</inf>H<inf>12</inf>] formation during decomposition of a Ca(BH<inf>4</inf>)<inf>2</inf> + MgH<inf>2</inf> based reactive hydride composite. In: Journal of Physical Chemistry C. 2011 ; Vol. 115. pp. 18010-18014.

@article{ee415852fa344d7c9072aef1893ec3fc,

title = "Experimental evidence of Ca[B12H12] formation during decomposition of a Ca(BH4)2 + MgH2 based reactive hydride composite",

abstract = "The combination of Ca(BH4)2 and MgH2 materials results in a composite with remarkable hydrogen storage properties. However, full reversibility upon the (re)hydrogenation reaction has not yet been achieved. The poor reversibility is shown to be linked to the formation of stable intermediate phases or side products upon decomposition. In this work, we show, for the first time, the clear experimental evidence of CaB 12H12 among the decomposition products of a Ca(BH 4)2 + MgH2 composite. A combination of 11B Magic Angle Spinning-Nuclear Magnetic Resonance ( 11B{1H} MAS NMR), ex situ X-ray diffraction (XRD) and Rietveld analysis are presented. An assessment of the (de)hydrogenation and (re)hydrogenation reactions of Ca(BH4)2 + MgH2 composite is reported. The experimental results provided in this work highlight the reasons for the limited reversibility observed in the Ca(BH 4)2 + MgH2 composite upon (re)hydrogenation. {\textcopyright} 2011 American Chemical Society.",

author = "{Bonatto Minella}, Christian and Sebastiano Garroni and David Olid and Francesc Teixidor and Claudio Pistidda and Inge Lindemann and Oliver Gutfleisch and Bar{\'o}, {Maria Dolores} and R{\"u}diger Bormann and Thomas Klassen and Martin Dornheim",

year = "2011",

month = sep,

day = "15",

doi = "https://doi.org/10.1021/jp204598a",

language = "English",

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Bonatto Minella, C, Garroni, S, Olid, D, Teixidor, F, Pistidda, C, Lindemann, I, Gutfleisch, O, Baró, MD, Bormann, R, Klassen, T & Dornheim, M 2011, 'Experimental evidence of Ca[B<inf>12</inf>H<inf>12</inf>] formation during decomposition of a Ca(BH<inf>4</inf>)<inf>2</inf> + MgH<inf>2</inf> based reactive hydride composite', Journal of Physical Chemistry C, vol. 115, pp. 18010-18014. https://doi.org/10.1021/jp204598a

Experimental evidence of Ca[B<inf>12</inf>H<inf>12</inf>] formation during decomposition of a Ca(BH<inf>4</inf>)<inf>2</inf> + MgH<inf>2</inf> based reactive hydride composite. / Bonatto Minella, Christian; Garroni, Sebastiano; Olid, David; Teixidor, Francesc; Pistidda, Claudio; Lindemann, Inge; Gutfleisch, Oliver; Baró, Maria Dolores; Bormann, Rüdiger; Klassen, Thomas; Dornheim, Martin.

In: Journal of Physical Chemistry C, Vol. 115, 15.09.2011, p. 18010-18014.

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

TY - JOUR

T1 - Experimental evidence of Ca[B12H12] formation during decomposition of a Ca(BH4)2 + MgH2 based reactive hydride composite

AU - Bonatto Minella, Christian

AU - Garroni, Sebastiano

AU - Olid, David

AU - Teixidor, Francesc

AU - Pistidda, Claudio

AU - Lindemann, Inge

AU - Gutfleisch, Oliver

AU - Baró, Maria Dolores

AU - Bormann, Rüdiger

AU - Klassen, Thomas

AU - Dornheim, Martin

PY - 2011/9/15

Y1 - 2011/9/15

N2 - The combination of Ca(BH4)2 and MgH2 materials results in a composite with remarkable hydrogen storage properties. However, full reversibility upon the (re)hydrogenation reaction has not yet been achieved. The poor reversibility is shown to be linked to the formation of stable intermediate phases or side products upon decomposition. In this work, we show, for the first time, the clear experimental evidence of CaB 12H12 among the decomposition products of a Ca(BH 4)2 + MgH2 composite. A combination of 11B Magic Angle Spinning-Nuclear Magnetic Resonance ( 11B{1H} MAS NMR), ex situ X-ray diffraction (XRD) and Rietveld analysis are presented. An assessment of the (de)hydrogenation and (re)hydrogenation reactions of Ca(BH4)2 + MgH2 composite is reported. The experimental results provided in this work highlight the reasons for the limited reversibility observed in the Ca(BH 4)2 + MgH2 composite upon (re)hydrogenation. © 2011 American Chemical Society.

AB - The combination of Ca(BH4)2 and MgH2 materials results in a composite with remarkable hydrogen storage properties. However, full reversibility upon the (re)hydrogenation reaction has not yet been achieved. The poor reversibility is shown to be linked to the formation of stable intermediate phases or side products upon decomposition. In this work, we show, for the first time, the clear experimental evidence of CaB 12H12 among the decomposition products of a Ca(BH 4)2 + MgH2 composite. A combination of 11B Magic Angle Spinning-Nuclear Magnetic Resonance ( 11B{1H} MAS NMR), ex situ X-ray diffraction (XRD) and Rietveld analysis are presented. An assessment of the (de)hydrogenation and (re)hydrogenation reactions of Ca(BH4)2 + MgH2 composite is reported. The experimental results provided in this work highlight the reasons for the limited reversibility observed in the Ca(BH 4)2 + MgH2 composite upon (re)hydrogenation. © 2011 American Chemical Society.

U2 - https://doi.org/10.1021/jp204598a

DO - https://doi.org/10.1021/jp204598a

M3 - Article

VL - 115

SP - 18010

EP - 18014

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

ER -