Effect of Fe additive on the hydrogenation-dehydrogenation properties of 2LiH + MgB 2 /2LiBH 4  + MgH 2 system

Puszkiel, Julián; Gennari, F.C.; Larochette, P. Arneodo; Ramallo‐López, José M.; Vainio, Ulla; Karimi, Fahim; Pranzas, P. Klaus; Troiani, Horacio Esteban; Pistidda, Claudio; Jepsen, Julian; Tolkiehn, Martin; Welter, Edmund; Klassen, Thomas; Colbe, José M. Bellosta von; Dornheim, Martin

doi:10.1016/j.jpowsour.2015.02.153

Cited by 32 publications

(35 citation statements)

References 43 publications

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“…Based on this analysis, it is clear that the mutual destabilization effect between LiBH 4 and MgH 2 only occurs upon hydrogenation, but at relatively low temperatures (<413 • C) under equilibrium conditions. For the hydrogenation process carried out under dynamic conditions, the applied temperatures were usually in the range between 300 • C and 400 • C [33][34][35][36][37][38][56][57][58][59][60][61][62][63][64][65][66][67]; hence, the mutual destabilization effect was verified by a one-step curve of hydrogen uptake against time. However, for the dehydrogenation, the thermodynamics limits the behavior of Li-RHC to two main reaction steps, losing the benefit of the destabilization effect.…”

Section: Destabilized Mgh2-2libh4 System: Li-rhcmentioning

confidence: 99%

“…The most applied approach to improve the kinetic behavior of the 2LiBH 4 + MgH 2 system was the addition of transition metal (TM) and transition metal compounds (TMC) via mechanical milling [68]. Several works were published about the improvement of the kinetic behavior, and also cycling stability of TM-and TMC-added Li-RHC [56][57][58][59][60][61][62][63][64][65][66][67]. In 2010, Bösenberg et al [57] studied the effects of TMC on the kinetic behavior of Li-RHC and proposed global reaction rate mechanisms for the absorption and mainly desorption of hydrogen.…”

Section: Destabilized Mgh2-2libh4 System: Li-rhcmentioning

confidence: 99%

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Tuning LiBH4 for Hydrogen Storage: Destabilization, Additive, and Nanoconfinement Approaches

et al. 2019

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Hydrogen technology has become essential to fulfill our mobile and stationary energy needs in a global low–carbon energy system. The non-renewability of fossil fuels and the increasing environmental problems caused by our fossil fuel–running economy have led to our efforts towards the application of hydrogen as an energy vector. However, the development of volumetric and gravimetric efficient hydrogen storage media is still to be addressed. LiBH4 is one of the most interesting media to store hydrogen as a compound due to its large gravimetric (18.5 wt.%) and volumetric (121 kgH2/m3) hydrogen densities. In this review, we focus on some of the main explored approaches to tune the thermodynamics and kinetics of LiBH4: (I) LiBH4 + MgH2 destabilized system, (II) metal and metal hydride added LiBH4, (III) destabilization of LiBH4 by rare-earth metal hydrides, and (IV) the nanoconfinement of LiBH4 and destabilized LiBH4 hydride systems. Thorough discussions about the reaction pathways, destabilizing and catalytic effects of metals and metal hydrides, novel synthesis processes of rare earth destabilizing agents, and all the essential aspects of nanoconfinement are led.

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Section: Destabilized Mgh2-2libh4 System: Li-rhcmentioning

confidence: 99%

Section: Destabilized Mgh2-2libh4 System: Li-rhcmentioning

confidence: 99%

Tuning LiBH4 for Hydrogen Storage: Destabilization, Additive, and Nanoconfinement Approaches

et al. 2019

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“…For instance, as demonstrated by Puszkiel et al, the presence of Fe for the 2LiBH 4 + MgH 2 hydride system causes detrimental effects in the kinetic behavior since FeB species without any beneficial effects are formed. It was found that an appreciable amount of Fe came mostly from the grinding medium [66]. Despite the described disadvantages, the milling process is quite effective and efficient at the time to prepare and tailor hydride compounds and systems and additionally it is possible to scale-up for practical applications.…”

Section: Mechanical Millingmentioning

confidence: 99%

Tailoring the Kinetic Behavior of Hydride Forming Materials for Hydrogen Storage

Puszkiel¹

2019

Gold Nanoparticles - Reaching New Heights

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Hydride forming materials, i.e., binary, complex hydrides, and their mixtures, have been extensively investigated owing to their potential hydrogen storage properties. They possess high volumetric hydrogen capacity and relative high gravimetric hydrogen capacity. However, one of the main constraints for their practical application is their slow kinetic behavior. For this reason, enormous effort has been devoted to improve the hydrogenation and dehydrogenation rates. Several strategies have been developed for the enhancement of the kinetic behavior of the most relevant hydride forming materials such as MgH

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“…2LiBH 4 + MgH 2 2LiH + MgB 2 + 4H 2 (52) In the last decade this system has been thoroughly investigated with respect to reaction pathway, temperature and hydrogen pressure boundaries, microstructure, effect of additives on the reaction kinetics, and nanoconfinement [159][160][161][162][163][164][165][166][167][168][169][170][171][172][173].…”

Section: Libhmentioning

confidence: 99%

Tetrahydroborates: Development and Potential as Hydrogen Storage Medium

et al. 2017

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Abstract:The use of fossil fuels as an energy supply becomes increasingly problematic from the point of view of both environmental emissions and energy sustainability. As an alternative, hydrogen is widely regarded as a key element for a potential energy solution. However, differently from fossil fuels such as oil, gas, and coal, the production of hydrogen requires energy. Alternative and intermittent renewable energy sources such as solar power, wind power, etc., present multiple advantages for the production of hydrogen. On the one hand, the renewable sources contribute to a remarkable reduction of pollutants released to the air and on the other hand, they significantly enhance the sustainability of energy supply. In addition, the storage of energy in form of hydrogen has a huge potential to balance an effective and synergetic utilization of renewable energy sources. In this regard, hydrogen storage technology is a key technology towards the practical application of hydrogen as "energy carrier". Among the methods available to store hydrogen, solid-state storage is the most attractive alternative from both the safety and the volumetric energy density points of view. Because of their appealing hydrogen content, complex hydrides and complex hydride-based systems have attracted considerable attention as potential energy vectors for mobile and stationary applications. In this review, the progresses made over the last century on the synthesis and development of tetrahydroborates and tetrahydroborate-based systems for hydrogen storage purposes are summarized.

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Effect of Fe additive on the hydrogenation-dehydrogenation properties of 2LiH + MgB 2 /2LiBH 4 + MgH 2 system

Cited by 32 publications

References 43 publications

Tuning LiBH4 for Hydrogen Storage: Destabilization, Additive, and Nanoconfinement Approaches

Tuning LiBH4 for Hydrogen Storage: Destabilization, Additive, and Nanoconfinement Approaches

Tailoring the Kinetic Behavior of Hydride Forming Materials for Hydrogen Storage

Tetrahydroborates: Development and Potential as Hydrogen Storage Medium

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