Effect of the Process Parameters on the Energy Transfer during the Synthesis of the 2LiBH4-MgH2 Reactive Hydride Composite for Hydrogen Storage
| Autor: | Tobias Werner, Chiara Milanese, Giovanni Capurso, Nina Busch, Thomas Klassen, Alessandro Girella, José M. Bellosta von Colbe, Julián Puszkiel, Julian Jepsen, Martin Dornheim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:TN1-997
Materials science Hydrogen Nucleation chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Hydrogen storage HIGH-ENERGY MILLING METAL HYDRIDES LiBH4/MgH2 Desorption Specific surface area Metal hydrides General Materials Science LIBH4/MGH2 lcsh:Mining engineering. Metallurgy BOROHYDRIDES ddc:620.11 Hydride Metals and Alloys high-energy milling HYDROGEN STORAGE REACTIVE HYDRIDE COMPOSITES 021001 nanoscience & nanotechnology 0104 chemical sciences purl.org/becyt/ford/2 [https] chemistry Chemical engineering Particle borohydrides reactive hydride composites Crystallite purl.org/becyt/ford/2.5 [https] 0210 nano-technology |
| Zdroj: | Jepsen, J.; Capurso, G.; Puszkiel, J.; Busch, N.; Werner, T.; Milanese, C.; Girella, A.; Bellosta von Colbe, J.; Dornheim, M.; Klassen, T.: Effect of the Process Parameters on the Energy Transfer during the Synthesis of the 2LiBH4-MgH2 Reactive Hydride Composite for Hydrogen Storage. In: Metals. Vol. 9 (2019) 3, 349. (DOI: /10.3390/met9030349) Metals Volume 9 Issue 3 CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Metals, Vol 9, Iss 3, p 349 (2019) |
| ISSN: | 2075-4701 |
| DOI: | 10.3390/met9030349) |
| Popis: | Several different milling parameters (additive content, rotation velocity, ball-to-powder ratio, degree of filling, and time) affect the hydrogen absorption and desorption properties of a reactive hydride composite (RHC). In this paper, these effects were thoroughly tested and analyzed. The milling process investigated in such detail was performed on the 2LiH-MgB2 system doped with TiCl3. Applying an upgraded empirical model, the transfer of energy to the material during the milling process was determined. In this way, it is possible to compare the obtained experimental results with those from processes at different scales. In addition, the different milling parameters were evaluated independently according to their individual effect on the transferred energy. Their influence on the reaction kinetics and hydrogen capacity was discussed and the results were correlated to characteristics like particle and crystallite size, specific surface area, presence of nucleation sites and contaminants. Finally, an optimal value for the transferred energy was determined, above which the powder characteristics do not change and therefore the RHC system properties do not further improve. Fil: Jepsen, Julian. Helmholtz zentrum Geesthacht; Alemania. Helmut Schmidt University; Alemania Fil: Capurso, Giovanni. Helmholtz zentrum Geesthacht; Alemania Fil: Puszkiel, Julián Atilio. Helmholtz zentrum Geesthacht; Alemania. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Busch, Nina. Helmholtz zentrum Geesthacht; Alemania Fil: Werner, Tobias. Helmholtz zentrum Geesthacht; Alemania Fil: Milanese, Chiara. Universita Degli Studi Di Pavia; Italia Fil: Girella, Alessandro. Universita Degli Studi Di Pavia; Italia Fil: Von Colbe, José Bellosta. Helmholtz zentrum Geesthacht; Alemania Fil: Dornheim, Martin. Helmholtz zentrum Geesthacht; Alemania Fil: Klassen, Thomas. Helmholtz zentrum Geesthacht; Alemania. Helmut Schmidt University; Alemania |
| Databáze: | OpenAIRE |
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