Please use this identifier to cite or link to this item:
http://dx.doi.org/10.18419/opus-14981
Authors: | Cao, Hujun Pistidda, Claudio Richter, Theresia M. M. Capurso, Giovanni Milanese, Chiara Tseng, Jo-Chi Shang, Yuanyuan Niewa, Rainer Chen, Ping Klassen, Thomas Dornheim, Martin |
Title: | De-hydrogenation/rehydrogenation properties and reaction mechanism of AmZn(NH2)n-2nLiH systems (A = Li, K, Na, and Rb) |
Issue Date: | 2022 |
metadata.ubs.publikation.typ: | Zeitschriftenartikel |
metadata.ubs.publikation.seiten: | 13 |
metadata.ubs.publikation.source: | Sustainability 14 (2022), No. 1672 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-150000 http://elib.uni-stuttgart.de/handle/11682/15000 http://dx.doi.org/10.18419/opus-14981 |
ISSN: | 2071-1050 |
Abstract: | With the aim to find suitable hydrogen storage materials for stationary and mobile applications, multi-cation amide-based systems have attracted considerable attention, due to their unique hydrogenation kinetics. In this work, AmZn(NH2)n (with A = Li, K, Na, and Rb) were synthesized via an ammonothermal method. The synthesized phases were mixed via ball milling with LiH to form the systems AmZn(NH2)n-2nLiH (with m = 2, 4 and n = 4, 6), as well as Na2Zn(NH2)4∙0.5NH3-8LiH. The hydrogen storage properties of the obtained materials were investigated via a combination of calorimetric, spectroscopic, and diffraction methods. As a result of the performed analyses, Rb2Zn(NH2)4-8LiH appears as the most appealing system. This composite, after de-hydrogenation, can be fully rehydrogenated within 30 s at a temperature between 190 °C and 200 °C under a pressure of 50 bar of hydrogen. |
Appears in Collections: | 03 Fakultät Chemie |
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sustainability-14-01672.pdf | 23,48 MB | Adobe PDF | View/Open |
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