Title of article :
Transport characteristics of dehydrogenated ammonia borane and sodium borohydride spent fuels
Author/Authors :
Basu، نويسنده , , Sumit and Diwan، نويسنده , , Moiz and Abiad، نويسنده , , Mohamad G. and Zheng، نويسنده , , Yuan and Campanella، نويسنده , , Osvaldo H. and Varma، نويسنده , , Arvind، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
10
From page :
2063
To page :
2072
Abstract :
Ammonia borane (AB) and sodium borohydride (SBH) are candidate materials for on-board hydrogen storage that can be dehydrogenated upon demand. The rheological properties of the dehydrogenated by-products are important to quantify their removal and transportability from the hydrogen storage system. This paper presents visco-elastic property (elastic stiffness and viscous damping) measurements of the spent fuels obtained from AB hydrolysis, hydrothermolysis and thermolysis; and SBH hydrolysis. Smaller stiffness and larger mobility (or smaller viscous damping) indicate better transportability of the spent fuel. In addition, flow property (dynamic angle of repose and avalanching time) measurements for the hydrolysis spent fuels of AB and SBH are also presented. Comparing with the SBH hydrolysis spent fuel, the AB hydrolysis spent fuel had a lower stiffness and larger mobility, as well as lower angles of dynamic repose and avalanche power peaks, indicating that it is more transportable. Among all the investigated AB spent fuels in the present study, those obtained from its neat thermolysis (at 120 °C) and hydrothermolysis (40–70 wt%) were found to be the most transportable, followed by-products of its hydrolysis and ionic solvent-aided thermolysis, respectively.
Keywords :
Ammonia borane , sodium borohydride , Spent fuels , Transportability , Visco-elastic properties
Journal title :
International Journal of Hydrogen Energy
Serial Year :
2010
Journal title :
International Journal of Hydrogen Energy
Record number :
1659488
Link To Document :
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