TY - GEN
T1 - Hydrogen sorption properties of Ti- oxide/chloride catalyzed Na 2LiAlH6
AU - Martínez-Franco, Enrique
AU - Klassen, Thomas
AU - Dornheim, Martin
AU - Bormann, Ruediger
AU - Jaramillo-Vigueras, David
PY - 2010
Y1 - 2010
N2 - Mechano-synthesis through mechanical alloying (MA) has been employed to obtain a nanocrystalline complex sodium lithium alanate, namely, Na 2LiAlH6 from starting materials NaH and LiAlH4. Different Ti-based additives were milled together with starting materials in order to achieve improved hydrogen absorption kinetics. Hydrogen titration experiments showed that the material processed with 5 mol% TiCl3 has the fastest ab- and desorption kinetics, but at the sacrifice of hydrogen capacity. This could be correlated to the formation of NaCl during milling and after absorption. Differential scanning calorimetry (DSC) results demonstrate that the endothermic peak of TiCl3 doped material shifted 53°C to lower temperatures.
AB - Mechano-synthesis through mechanical alloying (MA) has been employed to obtain a nanocrystalline complex sodium lithium alanate, namely, Na 2LiAlH6 from starting materials NaH and LiAlH4. Different Ti-based additives were milled together with starting materials in order to achieve improved hydrogen absorption kinetics. Hydrogen titration experiments showed that the material processed with 5 mol% TiCl3 has the fastest ab- and desorption kinetics, but at the sacrifice of hydrogen capacity. This could be correlated to the formation of NaCl during milling and after absorption. Differential scanning calorimetry (DSC) results demonstrate that the endothermic peak of TiCl3 doped material shifted 53°C to lower temperatures.
UR - http://www.scopus.com/inward/record.url?scp=77955391353&partnerID=8YFLogxK
U2 - 10.1002/9780470599730.ch2
DO - 10.1002/9780470599730.ch2
M3 - Contribución a la conferencia
SN - 9780470408490
T3 - Ceramic Transactions
SP - 13
EP - 20
BT - Advances in Sintering Science and Technology - A Collection of Papers Presented at the International Conference on Sintering
PB - American Ceramic Society
T2 - Advances in Sintering Science and Technology - International Conference on Sintering 2008
Y2 - 16 November 2008 through 20 November 2008
ER -