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We show a drastically improved gas–solid reaction between NH3 and LiH by mechanical treatment for LiH, generating a hydrogen gas even at room temperature. The results of x-ray photoelectron spectroscopy showed that the mechanical pretreatment was effective in reducing a hydroxide phase from the surface of LiH. It was also possible to successfully recycle back LiNH2, which is the byproduct of this hydrogen desorption reaction, to LiH under 0.5-MPa H2 flow at 573 K. Thus, the LiH–NH3 system provides a recyclable H2 storage system to generate H2 at room temperature with 8.1 mass% and 4.5 kg/100 L hydrogen capacity.

High pressure physic-sorption hydrogen tank using high purity and high surface area SWNTs is considered to be one of the most promising hydrogen tank systems

It was indicated that H2 is generated by the reaction of LiH and NH3. After H2 generation, the byproduct LiNH2 was recycled back to LiH under H2 flow condition at 500K.

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Molecular hydrogen carrier with activated nanohydride and ammonia

SWNTs Bundle Dispersion Study and Analysis of its Potential as a Hydrogen Tank

A New Concept of Hydrogen Storage Using Lithium Hydride and Ammonia

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3 results

Molecular hydrogen carrier with activated nanohydride and ammonia

SWNTs Bundle Dispersion Study and Analysis of its Potential as a Hydrogen Tank

A New Concept of Hydrogen Storage Using Lithium Hydride and Ammonia