A novel aided-cation strategy to advance the dehydrogenation of calcium borohydride monoammoniate

2012 ◽  
Vol 22 (12) ◽  
pp. 5312 ◽  
Author(s):  
Ziwei Tang ◽  
Yingbin Tan ◽  
Qinfen Gu ◽  
Xuebin Yu
Keyword(s):  
Calcium Borohydride

ChemInform Abstract: Structure and Hydrogen Storage Properties of Calcium Borohydride Diammoniate.

ChemInform ◽  
2010 ◽  
Vol 42 (2) ◽  
pp. no-no
Author(s):  
Hailiang Chu ◽  
Guotao Wu ◽  
Zhitao Xiong ◽  
Jianping Guo ◽  
Teng He ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Storage Properties ◽  
Abstract Structure ◽  
Calcium Borohydride ◽  
Storage Properties

Reversible hydrogen storage in calcium borohydride Ca(BH4)2

2008 ◽  
Vol 58 (6) ◽  
pp. 481-483 ◽  
Author(s):  
Jae-Hun Kim ◽  
Seon-Ah Jin ◽  
Jae-Hyeok Shim ◽  
Young Whan Cho
Keyword(s):  
Hydrogen Storage ◽  
Calcium Borohydride

Structural phase transitions and adduct release in calcium borohydride

2011 ◽  
Vol 509 ◽  
pp. S691-S693 ◽  
Author(s):  
A. Paolone ◽  
O. Palumbo ◽  
P. Rispoli ◽  
A. Miriametro ◽  
R. Cantelli ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Calcium Borohydride

Calcium Borohydride

1995 ◽  
Vol 25 (11) ◽  
pp. 1689-1697 ◽  
Author(s):  
S. Narasimhan ◽  
K. Ganeshwar Prasad ◽  
S. Madhavan
Keyword(s):  
Calcium Borohydride

Calcium Borohydride for Hydrogen Storage:  Catalysis and Reversibility

2007 ◽  
Vol 111 (42) ◽  
pp. 12045-12047 ◽  
Author(s):  
Ewa Rönnebro ◽  
Eric H. Majzoub
Keyword(s):  
Hydrogen Storage ◽  
Calcium Borohydride

Release of Tetrahydrofuran, Structural Phase Transitions and Dynamic Relaxation Processes in Ca (BH4)2

2012 ◽  
Vol 184 ◽  
pp. 24-32 ◽  
Author(s):  
Annalisa Paolone ◽  
O. Palumbo ◽  
P. Rispoli ◽  
Rosario Cantelli ◽  
E. Rönnebro ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Room Temperature ◽  
Structural Phase ◽  
Young Modulus ◽  
Relaxation Processes ◽  
Structural Phase Transitions ◽  
Exponential Factor ◽  
Β Phase ◽  
Α Phase ◽  
Calcium Borohydride

Various calcium borohydride samples were investigated by means of combined measurements of thermogravimetry and mass spectrometry, and anelastic spectroscopy. On heating, the release of 2-5% tetrahydrofuran (THF) is detected in all the samples at temperatures below ~480 K, even in those which were previously thermally treated, according to procedures known from the literature, in order to remove the solvent. Dehydrogenation takes place above 480 K. Above room temperature the temperature dependence of the Young modulus of Ca (BH4)2clearly monitors the release of THF and two irreversible structural phase transitions: from the α to the α’ phase around 460 K and from the α’ to the β phase, nearly completely evolved around 590 K. Moreover, the coefficient of elastic energy dissipation presents two dynamic processes below room temperature; a peak around 120 K characterized by an activation energy of 0.20 eV and a pre-exponential factor typical of atom-cluster relaxations, that we attributed to the dynamics of THF molecules retained in the borohydride lattice, and a peak around 200 K, possibly due to the relaxation of H vacancies.

Calcium Borohydride Reduction ofβ-Ketoesters

1956 ◽  
Vol 20 (3) ◽  
pp. 139-140 ◽  
Author(s):  
Masanao Matsui ◽  
Masateru Miyano ◽  
Kiyoshi Tomita
Keyword(s):  
Borohydride Reduction ◽  
Calcium Borohydride
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