Facile synthesis of anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) from M(BH4)2

Liqing He, Hai Wen Li, Nikolay Tumanov, Yaroslav Filinchuk, Etsuo Akiba

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Metal dodecaborates M2/nB12H12 are among the dehydrogenation intermediates of metal borohydrides M(BH4)n with a high hydrogen density of approximately 10 mass%, the latter is a potential hydrogen storage material. There is therefore a great need to synthesize anhydrous M2/nB12H12 in order to investigate the thermal decomposition of M2/nB12H12 and to understand its role in the dehydrogenation and rehydrogenation of M(BH4)n. In this work, anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) have been successfully synthesized by sintering M(BH4)2 (M = Mg, Ca) and B10H14 in a stoichiometric molar ratio of 1 : 1. Thermal decomposition of MB12H12 shows multistep pathways with the formation of H-deficient monomers MB12H12-x containing icosahedral B12 skeletons and is followed by the formation of (MByHz)n polymers. Comparison of the thermal decomposition of MB12H12 and M(BH4)2 suggests different behaviours of the anhydrous MB12H12 and those formed from the decomposition of M(BH4)n.

langue originaleAnglais
Pages (de - à)15882-15887
Nombre de pages6
journalDalton Transactions
Volume44
Numéro de publication36
Les DOIs
étatPublié - 30 juil. 2015
Modification externeOui

Empreinte digitale

Alkaline Earth Metals
Pyrolysis
Dehydrogenation
Metalloids
Borohydrides
Hydrogen storage
Hydrogen
Polymers
Sintering
Monomers
Metals
Decomposition
dodecaborate

Citer ceci

He, Liqing ; Li, Hai Wen ; Tumanov, Nikolay ; Filinchuk, Yaroslav ; Akiba, Etsuo. / Facile synthesis of anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) from M(BH4)2. Dans: Dalton Transactions. 2015 ; Vol 44, Numéro 36. p. 15882-15887.
@article{e404c042ebf44b92aef34ebb0b6dd0b6,
title = "Facile synthesis of anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) from M(BH4)2",
abstract = "Metal dodecaborates M2/nB12H12 are among the dehydrogenation intermediates of metal borohydrides M(BH4)n with a high hydrogen density of approximately 10 mass{\%}, the latter is a potential hydrogen storage material. There is therefore a great need to synthesize anhydrous M2/nB12H12 in order to investigate the thermal decomposition of M2/nB12H12 and to understand its role in the dehydrogenation and rehydrogenation of M(BH4)n. In this work, anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) have been successfully synthesized by sintering M(BH4)2 (M = Mg, Ca) and B10H14 in a stoichiometric molar ratio of 1 : 1. Thermal decomposition of MB12H12 shows multistep pathways with the formation of H-deficient monomers MB12H12-x containing icosahedral B12 skeletons and is followed by the formation of (MByHz)n polymers. Comparison of the thermal decomposition of MB12H12 and M(BH4)2 suggests different behaviours of the anhydrous MB12H12 and those formed from the decomposition of M(BH4)n.",
author = "Liqing He and Li, {Hai Wen} and Nikolay Tumanov and Yaroslav Filinchuk and Etsuo Akiba",
year = "2015",
month = "7",
day = "30",
doi = "10.1039/c5dt02343b",
language = "English",
volume = "44",
pages = "15882--15887",
journal = "Dalton Transactions",
issn = "1477-9226",
publisher = "Royal Society of Chemistry",
number = "36",

}

Facile synthesis of anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) from M(BH4)2. / He, Liqing; Li, Hai Wen; Tumanov, Nikolay; Filinchuk, Yaroslav; Akiba, Etsuo.

Dans: Dalton Transactions, Vol 44, Numéro 36, 30.07.2015, p. 15882-15887.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Facile synthesis of anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) from M(BH4)2

AU - He, Liqing

AU - Li, Hai Wen

AU - Tumanov, Nikolay

AU - Filinchuk, Yaroslav

AU - Akiba, Etsuo

PY - 2015/7/30

Y1 - 2015/7/30

N2 - Metal dodecaborates M2/nB12H12 are among the dehydrogenation intermediates of metal borohydrides M(BH4)n with a high hydrogen density of approximately 10 mass%, the latter is a potential hydrogen storage material. There is therefore a great need to synthesize anhydrous M2/nB12H12 in order to investigate the thermal decomposition of M2/nB12H12 and to understand its role in the dehydrogenation and rehydrogenation of M(BH4)n. In this work, anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) have been successfully synthesized by sintering M(BH4)2 (M = Mg, Ca) and B10H14 in a stoichiometric molar ratio of 1 : 1. Thermal decomposition of MB12H12 shows multistep pathways with the formation of H-deficient monomers MB12H12-x containing icosahedral B12 skeletons and is followed by the formation of (MByHz)n polymers. Comparison of the thermal decomposition of MB12H12 and M(BH4)2 suggests different behaviours of the anhydrous MB12H12 and those formed from the decomposition of M(BH4)n.

AB - Metal dodecaborates M2/nB12H12 are among the dehydrogenation intermediates of metal borohydrides M(BH4)n with a high hydrogen density of approximately 10 mass%, the latter is a potential hydrogen storage material. There is therefore a great need to synthesize anhydrous M2/nB12H12 in order to investigate the thermal decomposition of M2/nB12H12 and to understand its role in the dehydrogenation and rehydrogenation of M(BH4)n. In this work, anhydrous alkaline earth metal dodecaborates MB12H12 (M = Mg, Ca) have been successfully synthesized by sintering M(BH4)2 (M = Mg, Ca) and B10H14 in a stoichiometric molar ratio of 1 : 1. Thermal decomposition of MB12H12 shows multistep pathways with the formation of H-deficient monomers MB12H12-x containing icosahedral B12 skeletons and is followed by the formation of (MByHz)n polymers. Comparison of the thermal decomposition of MB12H12 and M(BH4)2 suggests different behaviours of the anhydrous MB12H12 and those formed from the decomposition of M(BH4)n.

UR - http://www.scopus.com/inward/record.url?scp=84940879569&partnerID=8YFLogxK

U2 - 10.1039/c5dt02343b

DO - 10.1039/c5dt02343b

M3 - Article

AN - SCOPUS:84940879569

VL - 44

SP - 15882

EP - 15887

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 36

ER -