RT info:eu-repo/semantics/article
T1 Enhancement of hydrogen release kinetics from ethane 1,2 diamineborane (EDAB) by micronization using Supercritical Antisolvent (SAS) Precipitation
A1 Rueda Noriega, Miriam
A1 Sanz Moral, Luis Miguel
A1 Segovia Puras, José Juan
A1 Martín Martínez, Ángel
AB Ethane 1, 2 diamineborane (EDAB) was micronized from THF solutions using Supercritical Antisolvent (SAS) process. The influence of temperature, solute concentration and carbon dioxide fraction on the final properties of EDAB particles was studied. By SAS micronization, the original prismatic EDAB particles of about 400 µm with a crystallite size of 100 nm were converted into microspheres of less than 2 µm with a crystallite size of 50 nm. This reduction in the particle and grain sizes resulted in an improvement in thermal properties. The kinetics of release of hydrogen by thermolysis at 100ºC was also significantly enhanced due to the reduction in the diffusion length, reducing the time needed for the decomposition of the hydride by a factor of six. Moreover, a suppression of induction time was obtained by destabilization of the hydride after treatment. XRD and FTIR analyses showed that no chemical decomposition and no variation of the crystalline structure took place by SAS processing.
PB Elsevier
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/23374
UL http://uvadoc.uva.es/handle/10324/23374
LA eng
NO Chemical Engineering Journal 306 (2016) 164–173
DS UVaDOC
RD 20-sep-2024