Design of a Nanometric AlTi Additive for MgB2-Based Reactive Hydride Composites with Superior Kinetic Properties
| Autor: | Michael Krumrey, Thomas Klassen, Thomas Emmler, SeyedHosein Payandeh GharibDoust, Armin Hoell, Maria Victoria Castro Riglos, Thi Thu Le, Eike Gericke, Martin Dornheim, Torben R. Jensen, Fahim Karimi, Jørgen Skibsted, Bo Richter, Claudio Pistidda, Etsuo Akiba, Chiara Milanese, Julián Puszkiel, Antonio Santoru |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanostructure Li-RHC Hydrogen Enthalpy Composite number chemistry.chemical_element Nanoparticle 02 engineering and technology INGENIERÍAS Y TECNOLOGÍAS 010402 general chemistry 01 natural sciences hydrogen storage Ingeniería de los Materiales Dehydrogenation Al-Ti ADDITIVE Physical and Theoretical Chemistry MgB2‑Based Reactive Hydride Composites ddc:620.11 Hydride HYDROGEN STORAGE AlTi Additive 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials KINETIC PROPERTIES Kinetics General Energy purl.org/becyt/ford/2 [https] chemistry Chemical engineering Lithium purl.org/becyt/ford/2.5 [https] 0210 nano-technology |
| Zdroj: | Le, T T, Pistidda, C, Puszkiel, J, Castro Riglos, M V, Karimi, F, Skibsted, J, Gharibdoust, S P, Richter, B, Emmler, T, Milanese, C, Santoru, A, Hoell, A, Krumrey, M, Gericke, E, Akiba, E, Jensen, T R, Klassen, T & Dornheim, M 2018, ' Design of a Nanometric AlTi Additive for MgB 2-Based Reactive Hydride Composites with Superior Kinetic Properties ', Journal of Physical Chemistry C, vol. 122, no. 14, pp. 7642-7655 . https://doi.org/10.1021/acs.jpcc.8b01850 CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Le, T.; Pistidda, C.; Puszkiel, J.; Castro Riglos, M.; Karimi, F.; Skibsted, J.; Payandeh GharibDoust, S.; Richter, B.; Emmler, T.; Milanese, C.; Santoru, A.; Hoell, A.; Krumrey, M.; Gericke, E.; Akiba, E.; Jensen, T.; Klassen, T.; Dornheim, M.: Design of a Nanometric AlTi Additive for MgB2-Based Reactive Hydride Composites with Superior Kinetic Properties. In: The Journal of Physical Chemistry C. Vol. 122 (2018) 14, 7642-7655. (DOI: /10.1021/acs.jpcc.8b01850) |
| ISSN: | 1932-7447 |
| DOI: | 10.1021/acs.jpcc.8b01850 |
| Popis: | Solid-state hydride compounds are a promising option for efficient and safe hydrogen-storage systems. Lithium reactive hydride composite system 2LiBH4 + MgH2/2LiH + MgB2 (Li-RHC) has been widely investigated owing to its high theoretical hydrogen-storage capacity and low calculated reaction enthalpy (11.5 wt % H2 and 45.9 kJ/mol H2). In this paper, a thorough investigation into the effect of the formation of nano-TiAl alloys on the hydrogen-storage properties of Li-RHC is presented. The additive 3TiCl3·AlCl3 is used as the nanoparticle precursor. For the investigated temperatures and hydrogen pressures, the addition of ∼5 wt % 3TiCl3·AlCl3 leads to hydrogenation/dehydrogenation times of only 30 min and a reversible hydrogen-storage capacity of 9.5 wt %. The material containing 3TiCl3·AlCl3 possesses superior hydrogen-storage properties in terms of rates and a stable hydrogen capacity during several hydrogenation/dehydrogenation cycles. These enhancements are attributed to an in situ nanostructure and a hexagonal AlTi3 phase observed by high-resolution transmission electron microscopy. This phase acts in a 2-fold manner, first promoting the nucleation of MgB2 upon dehydrogenation and second suppressing the formation of Li2B12H12 upon hydrogenation/dehydrogenation cycling. Fil: Le, Thi-Thu. Helmholtz Zentrum Geesthacht; Alemania Fil: Pistidda, Claudio. 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: Castro Riglos, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Helmholtz Zentrum Geesthacht; Alemania. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina Fil: Karimi, Fahim. Helmholtz Zentrum Geesthacht; Alemania Fil: Skibsted, Jørgen. University Aarhus; Dinamarca Fil: Gharibdoust, Seyedhosein Payandeh. University Aarhus; Dinamarca Fil: Richter, Bo. University Aarhus; Dinamarca Fil: Emmler, Thomas. Helmholtz Zentrum Geesthacht; Alemania Fil: Milanese, Chiara. Università di Pavia; Italia Fil: Santoru, Antonio. Helmholtz Zentrum Geesthacht; Alemania Fil: Hoell, Armin. Helmholtz Zentrum Berlin für Materialien und Energie; Alemania Fil: Krumrey, Michael. Physikalisch Technische Bundesanstalt; Alemania Fil: Gericke, Eike. Universität zu Berlin; Alemania Fil: Akiba, Etsuo. Kyushu University; Japón Fil: Jensen, Torben R.. University Aarhus; Dinamarca Fil: Klassen, Thomas. Helmholtz Zentrum Geesthacht; Alemania. Helmut Schmidt University; Alemania Fil: Dornheim, Martin. Helmholtz Zentrum Geesthacht; Alemania |
| Databáze: | OpenAIRE |
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