Hydrogen sorption properties of Ti- oxide/chloride catalyzed Na 2LiAlH6

Enrique Martínez-Franco, Thomas Klassen, Martin Dornheim, Ruediger Bormann, David Jaramillo-Vigueras

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationAdvances in Sintering Science and Technology - A Collection of Papers Presented at the International Conference on Sintering
PublisherAmerican Ceramic Society
Pages13-20
Number of pages8
ISBN (Print)9780470408490
DOIs
StatePublished - 2010
EventAdvances in Sintering Science and Technology - International Conference on Sintering 2008 - La Jolla, CA, United States
Duration: 16 Nov 200820 Nov 2008

Publication series

NameCeramic Transactions
Volume209
ISSN (Print)1042-1122

Conference

ConferenceAdvances in Sintering Science and Technology - International Conference on Sintering 2008
Country/TerritoryUnited States
CityLa Jolla, CA
Period16/11/0820/11/08

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