Solar thermal upper stage technology demonstrator liquid hydrogen storage and feed system test program

1997 ◽  
Author(s):  
E. C. Cady
Keyword(s):  
Hydrogen Storage ◽  
Liquid Hydrogen ◽  
Solar Thermal ◽  
Feed System ◽  
Test Program ◽  
Upper Stage ◽  
Technology Demonstrator

Hydrogen Storage in Magnesium-Based Alloys

MRS Bulletin ◽  
1999 ◽  
Vol 24 (11) ◽  
pp. 40-44 ◽  
Author(s):  
R.B. Schwarz
Keyword(s):  
Energy Density ◽  
Hydrogen Storage ◽  
Alternative Energy ◽  
Distribution Systems ◽  
Electrical Energy ◽  
Clean Energy ◽  
Energy System ◽  
Liquid Hydrogen ◽  
Rechargeable Batteries ◽  
Oil Crisis

Magnesium can reversibly store about 7.7 wt% hydrogen, equivalent to more than twice the density of liquid hydrogen. This high storage capacity, coupled with a low price, suggests that magnesium and magnesium alloys could be advantageous for use in battery electrodes and gaseous-hydrogen storage systems. The use of a hydrogen-storage medium based on magnesium, combined with a fuel cell to convert the hydrogen into electrical energy, is an attractive proposition for a clean transportation system. However, the advent of such a system will require further research into magnesium-based alloys that form less stable hydrides and proton-conducting membranes that can raise the operating temperature of the current fuel cells.Following the U.S. oil crisis of 1974, research into alternative energy-storage and distribution systems was vigorously pursued. The controlled oxidation of hydrogen to form water was proposed as a clean energy system, creating a need for light and safe hydrogen-storage media. Extensive research was done on inter-metallic alloys, which can store hydrogen at densities of about 1500 cm3-H2 gas/ cm3-hydride, higher than the storage density achieved in liquid hydrogen (784 cm3/cm3 at –273°C) or in pressure tanks (˜200 cm3/cm3 at 200 atm). The interest in metal hydrides accelerated following the development of portable electronic devices (video cameras, cellular phones, laptop computers, tools, etc.), which created a consumer market for compact, rechargeable batteries. Initially, nickel-cadmium batteries fulfilled this need, but their relatively low energy density and the toxicity of cadmium helped to drive the development of higher-energy-density, less toxic, rechargeable batteries.

Li(NH3)B3H8: a new ionic liquid octahydrotriborate

2019 ◽  
Vol 55 (3) ◽  
pp. 408-411 ◽  
Author(s):  
Xiongfei Zheng ◽  
Yanjing Yang ◽  
Mengxuan Li ◽  
Fengqi Zhao ◽  
Qinfen Gu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Storage ◽  
Liquid Hydrogen

A novel liquid octahydrotriborate compound, LiB3H8·NH3, with H–H bonds between the Li(NH3) cations and B3H8 anions froze below −33.4 °C, demonstrating potential as a liquid hydrogen storage candidate.

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