scholarly journals A prospect for LiBH4 as on-board hydrogen storage

2011 ◽  
Vol 9 (5) ◽  
pp. 761-775 ◽  
Author(s):  
Ivan Saldan
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Hydrogen Storage ◽  
Storage Capacity ◽  
Metal Hydrides ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
Lithium Borohydride ◽  
Kinetics Studies ◽  
Thermodynamics And Kinetics

AbstractIn contrast to the traditional metal hydrides, in which hydrogen storage involves the reversible hydrogen entering/exiting of the host hydride lattice, LiBH4 releases hydrogen via decomposition that produces segregated LiH and amorphous B phases. This is obviously the reason why lithium borohydride applications in fuel cells so far meet only one requirement — high hydrogen storage capacity. Nevertheless, its thermodynamics and kinetics studies are very active today and efficient ways to meet fuel cell requirements might be done through lowering the temperature for hydrogenation/dehydrogenation and suitable catalyst. Some improvements are expected to enable LiBH4 to be used in on-board hydrogen storage.

scholarly journals Recent advances on the thermal destabilization of Mg-based hydrogen storage materials

RSC Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 408-428 ◽  
Author(s):  
Jianfeng Zhang ◽  
Zhinian Li ◽  
Yuanfang Wu ◽  
Xiumei Guo ◽  
Jianhua Ye ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Storage Capacity ◽  
Magnesium Hydride ◽  
Hydrogen Storage Materials ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
Storage Materials ◽  
Recent Advances

Magnesium hydride and its compounds have a high hydrogen storage capacity and are inexpensive, and thus have been considered as one of the most promising hydrogen storage materials for on-board applications.

scholarly journals Hydrogen storage in complex metal hydrides

2009 ◽  
Vol 74 (2) ◽  
pp. 183-196 ◽  
Author(s):  
Borislav Bogdanovic ◽  
Michael Felderhoff ◽  
Guido Streukens
Keyword(s):  
Fuel Cells ◽  
Solid State ◽  
Thermodynamic Properties ◽  
Hydrogen Storage ◽  
Sodium Borohydride ◽  
Metal Hydride ◽  
Metal Hydrides ◽  
Hydrogen Storage Materials ◽  
High Hydrogen ◽  
Complex Metal

Complex metal hydrides such as sodium aluminohydride (NaAlH4) and sodium borohydride (NaBH4) are solid-state hydrogen-storage materials with high hydrogen capacities. They can be used in combination with fuel cells as a hydrogen source thus enabling longer operation times compared with classical metal hydrides. The most important point for a wide application of these materials is the reversibility under moderate technical conditions. At present, only NaAlH4 has favorable thermodynamic properties and can be employed as a thermally reversible means of hydrogen storage. By contrast, NaBH4 is a typical non-reversible complex metal hydride; it reacts with water to produce hydrogen.

Regeneration of Ammonia-Borane Complex for Hydrogen Storage

2005 ◽  
Vol 884 ◽  
Author(s):  
Nahid Mohajeri ◽  
Ali T-Raissi
Keyword(s):  
Hydrogen Storage ◽  
Energy Efficient ◽  
Storage Capacity ◽  
Storage System ◽  
Cost Effective ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
The Past ◽  
Hydrogen Storage System ◽  
Energy Center

AbstractAt the Florida Solar Energy Center (FSEC), a research program is underway for developing a high-density hydrogen storage system based on amine-borane (AB) complexes. Due to their high hydrogen capacity, these hydrides have been employed, in the past, as disposable hydrogen sources for fuel cell applications. However, to meet the requirements for hydrogen storage onboard vehicles, it is essential that cost effective and energy efficient methods for the regeneration (i.e. hydrogenation) of the spent (dehydrogenated) AB complexes can be found that utilize only hydrogen and/or electricity (i.e. the only plausible hydrogen economy energy carriers).We are studying two ammoniaborane (NH3BH3)-based systems with high hydrogen storage capacity. The first system employs a borazine-cyclotriborazane cycle. Borazine is a product of NH3BH3 thermolysis. Cyclotriborazane is the inorganic analog of cyclohexane. The second system employs polymeric AB complexes such as poly-(aminoborane) and polyborazylene. Poly-(aminoborane), an inorganic analog of polyethylene, is also a product of amoniaborane thermolysis whilepolyborazylene is the product of borazine thermolysis.For the two systems above, we are developing regeneration (i.e. reduction of borazine, poly-(aminoborane) and polyborazylene) schemes based on: 1) catalytic hydrogenation and 2) indirect (multi-step) synthesis techniques.

High hydrogen storage capacity in calcium-decorated silicene nanostructures

2015 ◽  
Vol 252 (9) ◽  
pp. 2072-2078 ◽  
Author(s):  
Feng Li ◽  
Changwen Zhang ◽  
Wei-Xiao Ji ◽  
Mingwen Zhao
Keyword(s):  
Hydrogen Storage ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen

NbF5 and CrF3 Catalysts Effects on Synthesis and Hydrogen Storage Performance of Mg-Ni-NiO Composites

2013 ◽  
Vol 681 ◽  
pp. 31-37
Author(s):  
Qi Wan ◽  
Ping Li ◽  
Teng Wang ◽  
Xuan Hui Qu
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Pressure ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
Hydrogen Capacity ◽  
Storage Performance ◽  
Desorption Temperature ◽  
Hydrogen Storage Performance ◽  
Potential Use

Two kinds of novel materials, Mg-1.6mol%Ni-0.4mol%NiO-2mol%MF (MF=NbF5, CrF3), along with Mg-1.6mol%Ni-0.4mol%NiO for comparison, were examined for their potential use in hydrogen storage applications, having been fabricated via cryomilling. The effects of NbF5 and CrF3 on hydrogen storage performance were investigated. A microstructure analysis showed that, aside from the main phase Mg, Ni and NiO phases, NbO, MgF2 and Mg2Ni were present in all samples after ball milling, MgH2 and NbH2 were observed in all samples after absorption. The CrF3-containing composite exhibited a good PCT results and a low onset desorption temperature under 0.1 MPa. The NbF5-containing composite exhibited a low absorption temperature of 323 K, a high hydrogen storage capacity of 4.03wt% at 373 K under the hydrogen pressure of 4.0 MPa, and it absorbed 90% of its full hydrogen capacity in 2700 sec and 100% in 5100 sec, it desorbed more than 1.8wt% in 3600 sec under vacuum environment. The CrF3-doped sample exhibited a low onset desorption temperature of 543 K under 0.1 MPa, and a low hysteresis coefficient of 0.25 at 573 K, and lower than 0.2 when temperature was 623 K. NbO and NbH2 played an important role in improving the absorption and desorption performance.

scholarly journals Mixed-linker approach in designing porous zirconium-based metal–organic frameworks with high hydrogen storage capacity

2016 ◽  
Vol 52 (50) ◽  
pp. 7826-7829 ◽  
Author(s):  
Ayesha Naeem ◽  
Valeska P. Ting ◽  
Ulrich Hintermair ◽  
Mi Tian ◽  
Richard Telford ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
High Selectivity ◽  
Storage Capacity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Hydrogen Uptake ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen ◽  
Metal Organic ◽  
Adsorption Of Co

New zirconium based metal–organic framework (UBMOF-31) synthesised using mixed-linker strategy showing permanent porosity, excellent hydrogen uptake, and high selectivity for adsorption of CO2 over N2.

Revealing contribution of pore size to high hydrogen storage capacity

2018 ◽  
Vol 43 (39) ◽  
pp. 18077-18082 ◽  
Author(s):  
Jianyu Huang ◽  
Yeru Liang ◽  
Hanwu Dong ◽  
Hang Hu ◽  
Peifeng Yu ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Pore Size ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen

scholarly journals Ultra-high hydrogen storage capacity of holey graphyne

2021 ◽  
Author(s):  
qingfang Li ◽  
Yan Gao ◽  
Huanian Zhang ◽  
Hongzhe Pan ◽  
Qing Fang Li ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity ◽  
High Hydrogen
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