| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Fichtner, M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2020Metal (boro-) hydrides for high energy density storage and relevant emerging technologiescitations
- 2019Oxygen Activity in Li-Rich Disordered Rock-Salt Oxide and the Influence of LiNbO$_{3}$ Surface Modification on the Electrochemical Performancecitations
- 2018Effect of oxidizer in the synthesis of NiO anchored nanostructure nickel molybdate for sodium-ion batterycitations
- 2015Development of new anode composite materials for fluoride ion batteries
- 2015Single step tranformation of sulphur to Li₂S₂/Li₂S in Li-S batteries
- 2013A facile synthesis of a carbon-encapsulated Fe₃O₄ nanocomposite and its performance as anode in lithium-ion batteriescitations
- 2013Influence of particle size and fluorination ratio of CFₓ precursor compounds on the electrochemical performance of C-FeF₂ nanocomposites for reversible lithium storagecitations
- 2012Synthesis and characterisation of a mesoporous carbon/calcium borohydride nanocomposite for hydrogen storagecitations
- 2012Tailored heat transfer characteristics of pelletized LiNH2-MgH2 and NaAlH4 hydrogen storage materialscitations
- 2011On the decomposition of the 0.6LiBH4-0.4Mg(BH4)2 eutectic mixture for hydrogen storagecitations
- 2011Modified synthesis of [Fe/LiF/C] nanocomposites, and its application as conversion cathode material in lithium batteriescitations
- 2009Thermal coupling of a high temperature PEM fuel cell with a complex hydride tankcitations
- 2004Nanotechnological approaches in the development of materials for hydrogen storage
- 2004Nanotechnological aspects in materials for hydrogen storage
Places of action
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document
Nanotechnological aspects in materials for hydrogen storage
Abstract
Actual developments in the field of hydrogen storage mainly deal with the development of materials based on the principles of chemisorption (metal hydrides in general) and physisorption. A nanotechnological approach has turned out to be highly beneficial in this field. Complex aluminum hydrides, the so-called alanates, are chemisorption materials with high gravimetric storage densities for hydrogen. It will be shown that their dehydrogenation temperature depends on the grain size and that the kinetics of decomposition and hydrogen uptake are governed by nucleation and growth of the new phases [1,2]. Kinetic data suggest that diffusion processes in the solid limit the rate of their rehydrogenation. Hence, shortening of diffusion paths would be necessary to enhance the kinetics, e.g. by reduction of the grain size of the dehydrogenated material. Kinetic barriers interfere with the hydrogen uptake and release and it has been tried to reduce the barriers by using appropriate dopants. In various studies Ti turned out to be the most active element for the process. It will be shown that a nanocomposite consisting of sodium alanate (NaAlH4) and a catalytic amount of small ligand stabilized Ti clusters (Ti13) shows considerably increased exchange rates for H when compared to a state-of-the-art catalyst. Nanoscale physisorption materials have regained importance after a new class of nanomaterials with very high specific surface areas has been tested for hydrogen storage. Microporous isoreticular metal-organic frameworks (IR-MOFs) [3] seem to have the potential to store several weight% of hydrogen at room temperature and moderate pressures. In order to optimize these structures, theoretical investigations have been made [4] and results of a work will be shown about the binding energy of molecular hydrogen interacting with various (substituted) aromatic hydrocarbons. [2] O. Kircher and M. Fichtner, J. Appl. Phys. (in press) [3] N.L. Rosi et al., Science 300 (2003) 1127 [4] O. Huebner, A. Gloess, M. Fichtner, and W. Klopper, J. Phys. Chem. A (in press).