Effect of several metal chlorides on the thermal decomposition behaviour of α-Mg(BH4)2

Elisa Gil Bardají, Nobuko Hanada, Oleg Zabara, Maximilian Fichtner

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Mechanochemical alloying of Mg(BH4)2 with small amounts of metal chlorides (PdCl2, TiCl3, VCl3, MoCl3, RuCl3, CeCl3 and NbCl5) results in the formation of transition metal doped nanocomposites with different hydrogen desorption properties. The thermal decomposition properties of ball-milled as well as doped α-Mg(BH4)2 have been studied. An amorphization reaction of Mg(BH4)2 is induced by ball milling, nevertheless a partial recrystallization of the alpha phase takes place after heating up to 150 °C. The effect of ball milling Mg(BH4)2 with each additive has been investigated in detail by using differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. The onset temperature of Mg(BH4)2 is lowered by more than 100 °C through the addition of Nb- or Ti chloride. Moreover, a mixed Ti-Nb-nanocomposite was also synthesized and investigated. The onset temperature of hydrogen evolution during decomposition of the mixed Ti-Nb-nanocomposite is considerably lowered by up to 125 °C.

Original languageEnglish
Pages (from-to)12313-12318
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume36
Issue number19
DOIs
Publication statusPublished - 2011 Sep
Externally publishedYes

Fingerprint

thermal decomposition
balls
Nanocomposites
nanocomposites
Pyrolysis
chlorides
Ball milling
Metals
metals
Hydrogen
Amorphization
hydrogen
Alloying
alloying
Transition metals
Thermogravimetric analysis
Differential scanning calorimetry
Desorption
heat measurement
desorption

Keywords

  • Additive
  • HP-DSC
  • Hydrogen storage
  • In-situ XRD
  • Magnesium borohydride
  • TG-MS

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Effect of several metal chlorides on the thermal decomposition behaviour of α-Mg(BH4)2 . / Bardají, Elisa Gil; Hanada, Nobuko; Zabara, Oleg; Fichtner, Maximilian.

In: International Journal of Hydrogen Energy, Vol. 36, No. 19, 09.2011, p. 12313-12318.

Research output: Contribution to journalArticle

Bardají, Elisa Gil ; Hanada, Nobuko ; Zabara, Oleg ; Fichtner, Maximilian. / Effect of several metal chlorides on the thermal decomposition behaviour of α-Mg(BH4)2 . In: International Journal of Hydrogen Energy. 2011 ; Vol. 36, No. 19. pp. 12313-12318.
@article{ab5bca368b72402ba658a5d064c7b525,
title = "Effect of several metal chlorides on the thermal decomposition behaviour of α-Mg(BH4)2",
abstract = "Mechanochemical alloying of Mg(BH4)2 with small amounts of metal chlorides (PdCl2, TiCl3, VCl3, MoCl3, RuCl3, CeCl3 and NbCl5) results in the formation of transition metal doped nanocomposites with different hydrogen desorption properties. The thermal decomposition properties of ball-milled as well as doped α-Mg(BH4)2 have been studied. An amorphization reaction of Mg(BH4)2 is induced by ball milling, nevertheless a partial recrystallization of the alpha phase takes place after heating up to 150 °C. The effect of ball milling Mg(BH4)2 with each additive has been investigated in detail by using differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. The onset temperature of Mg(BH4)2 is lowered by more than 100 °C through the addition of Nb- or Ti chloride. Moreover, a mixed Ti-Nb-nanocomposite was also synthesized and investigated. The onset temperature of hydrogen evolution during decomposition of the mixed Ti-Nb-nanocomposite is considerably lowered by up to 125 °C.",
keywords = "Additive, HP-DSC, Hydrogen storage, In-situ XRD, Magnesium borohydride, TG-MS",
author = "Bardaj{\'i}, {Elisa Gil} and Nobuko Hanada and Oleg Zabara and Maximilian Fichtner",
year = "2011",
month = "9",
doi = "10.1016/j.ijhydene.2011.07.008",
language = "English",
volume = "36",
pages = "12313--12318",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Limited",
number = "19",

}

TY - JOUR

T1 - Effect of several metal chlorides on the thermal decomposition behaviour of α-Mg(BH4)2

AU - Bardají, Elisa Gil

AU - Hanada, Nobuko

AU - Zabara, Oleg

AU - Fichtner, Maximilian

PY - 2011/9

Y1 - 2011/9

N2 - Mechanochemical alloying of Mg(BH4)2 with small amounts of metal chlorides (PdCl2, TiCl3, VCl3, MoCl3, RuCl3, CeCl3 and NbCl5) results in the formation of transition metal doped nanocomposites with different hydrogen desorption properties. The thermal decomposition properties of ball-milled as well as doped α-Mg(BH4)2 have been studied. An amorphization reaction of Mg(BH4)2 is induced by ball milling, nevertheless a partial recrystallization of the alpha phase takes place after heating up to 150 °C. The effect of ball milling Mg(BH4)2 with each additive has been investigated in detail by using differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. The onset temperature of Mg(BH4)2 is lowered by more than 100 °C through the addition of Nb- or Ti chloride. Moreover, a mixed Ti-Nb-nanocomposite was also synthesized and investigated. The onset temperature of hydrogen evolution during decomposition of the mixed Ti-Nb-nanocomposite is considerably lowered by up to 125 °C.

AB - Mechanochemical alloying of Mg(BH4)2 with small amounts of metal chlorides (PdCl2, TiCl3, VCl3, MoCl3, RuCl3, CeCl3 and NbCl5) results in the formation of transition metal doped nanocomposites with different hydrogen desorption properties. The thermal decomposition properties of ball-milled as well as doped α-Mg(BH4)2 have been studied. An amorphization reaction of Mg(BH4)2 is induced by ball milling, nevertheless a partial recrystallization of the alpha phase takes place after heating up to 150 °C. The effect of ball milling Mg(BH4)2 with each additive has been investigated in detail by using differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. The onset temperature of Mg(BH4)2 is lowered by more than 100 °C through the addition of Nb- or Ti chloride. Moreover, a mixed Ti-Nb-nanocomposite was also synthesized and investigated. The onset temperature of hydrogen evolution during decomposition of the mixed Ti-Nb-nanocomposite is considerably lowered by up to 125 °C.

KW - Additive

KW - HP-DSC

KW - Hydrogen storage

KW - In-situ XRD

KW - Magnesium borohydride

KW - TG-MS

UR - http://www.scopus.com/inward/record.url?scp=80052816482&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052816482&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2011.07.008

DO - 10.1016/j.ijhydene.2011.07.008

M3 - Article

VL - 36

SP - 12313

EP - 12318

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 19

ER -