Nanosheet-like Lithium Borohydride Hydrate with 10 wt % Hydrogen Release at 70 °C as a Chemical Hydrogen Storage Candidate

AbstractLithium based complex hydrides, including lithium aluminum hydrides and lithium borohydride (LiAlH4, Li3AlH6 and LiBH4), are among the most promising materials due to their high hydrogen contents. In the present work, we investigated the hydrogen storage properties of a new combined system of Li3AlH6-LiBH4. The samples were made with small amounts of catalyst under low energy milling conditions. Thermogravimetric analysis (TGA) of a Ti-doped Li3AlH6/2LiBH4 indicated that the degree of hydrogen release reached 7.3 wt. % by the time the sample reached 450iÆc under a heating rate of 2iÆC/min. This increased to 8.8 wt. % when the sample was held at 450iÆCfor additional 8 hours minutes under this condition. The dehydrogenation product was a mixture of LiH and AlB2. This product could be rehydrogenated up to 3.8 wt. % under 24.1 MPa hydrogen pressure and 450iÆC.

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Lithium borohydride–melamine complex as a promising material for chemical hydrogen storage

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2012.09.100 ◽

2013 ◽

Vol 552 ◽

pp. 98-101 ◽

Cited By ~ 4

Author(s):

Lin Liu ◽

Daqiang Hu ◽

Teng He ◽

Yao Zhang ◽

Guotao Wu ◽

...

Keyword(s):

Hydrogen Storage ◽

Promising Material ◽

Lithium Borohydride ◽

Chemical Hydrogen Storage

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Engineering Challenges of Solution and Slurry-Phase Chemical Hydrogen Storage Materials for Automotive Fuel Cell Applications

Molecules ◽

10.3390/molecules26061722 ◽

2021 ◽

Vol 26 (6) ◽

pp. 1722

Author(s):

Troy Semelsberger ◽

Jason Graetz ◽

Andrew Sutton ◽

Ewa C. E. Rönnebro

Keyword(s):

Liquid Phase ◽

Hydrogen Storage ◽

System Level ◽

Transport Systems ◽

Automotive Applications ◽

Storage Media ◽

Slurry Phase ◽

Research Findings ◽

Chemical Hydrogen Storage ◽

Phase Chemical

We present the research findings of the DOE-funded Hydrogen Storage Engineering Center of Excellence (HSECoE) related to liquid-phase and slurry-phase chemical hydrogen storage media and their potential as future hydrogen storage media for automotive applications. Chemical hydrogen storage media other than neat liquid compositions will prove difficult to meet the DOE system level targets. Solid- and slurry-phase chemical hydrogen storage media requiring off-board regeneration are impractical and highly unlikely to be implemented for automotive applications because of the formidable task of developing solid- or slurry-phase transport systems that are commercially reliable and economical throughout the entire life cycle of the fuel. Additionally, the regeneration cost and efficiency of chemical hydrogen storage media is currently the single most prohibitive barrier to implementing chemical hydrogen storage media. Ideally, neat liquid-phase chemical hydrogen storage media with net-usable gravimetric hydrogen capacities of greater than 7.8 wt% are projected to meet the 2017 DOE system level gravimetric and volumetric targets. The research presented herein is a collection of research findings that do not in and of themselves warrant a dedicated manuscript. However, the collection of results do, in fact, highlight the engineering challenges and short-comings in scaling up and demonstrating fluid-phase ammonia borane and alane compositions that all future materials researchers working in hydrogen storage should be aware of.

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Recent Advances in Hydrogen Storage Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.512-515.1438 ◽

2012 ◽

Vol 512-515 ◽

pp. 1438-1441 ◽

Cited By ~ 2

Author(s):

Hong Min Kan ◽

Ning Zhang ◽

Xiao Yang Wang ◽

Hong Sun

Keyword(s):

Liquid Phase ◽

Hydrogen Storage ◽

Earth Metal ◽

Solid Material ◽

Hydrogen Energy ◽

Hydrogen Storage Material ◽

Ambient Conditions ◽

Storage Material ◽

Lithium Borohydride ◽

Recent Advances

An overview of recent advances in hydrogen storage is presented in this review. The main focus is on metal hydrides, liquid-phase hydrogen storage material, alkaline earth metal NC/polymer composites and lithium borohydride ammoniate. Boron-nitrogen-based liquid-phase hydrogen storage material is a liquid under ambient conditions, air- and moisture-stable, recyclable and releases H2controllably and cleanly. It is not a solid material. It is easy storage and transport. The development of a liquid-phase hydrogen storage material has the potential to take advantage of the existing liquid-based distribution infrastructure. An air-stable composite material that consists of metallic Mg nanocrystals (NCs) in a gas-barrier polymer matrix that enables both the storage of a high density of hydrogen and rapid kinetics (loading in <30 min at 200°C). Moreover, nanostructuring of Mg provides rapid storage kinetics without using expensive heavy-metal catalysts. The Co-catalyzed lithium borohydride ammoniate, Li(NH3)4/3BH4 releases 17.8 wt% of hydrogen in the temperature range of 135 to 250 °C in a closed vessel. This is the maximum amount of dehydrogenation in all reports. These will reduce economy cost of the global transition from fossil fuels to hydrogen energy.

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