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A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
Hydrogen release from amminelithium borohydride, LiBH4 x NH3
Yanhui Guo1, Guanglin Xia, Yihan Zhu
1Department of Materials Science, Fudan University, Shanghai, China.
Chemical Communications (Cambridge, England)
|May 8, 2010
Summary
Amminelithium borohydride releases hydrogen at low temperatures. This is achieved by stabilizing ammonia and promoting the recombination of specific chemical bonds within the material.
Area of Science:
- Materials Science
- Chemical Engineering
- Hydrogen Storage
Background:
- Amminelithium borohydride (LiBH(4)·NH(3)) is a promising material for hydrogen storage.
- Understanding its hydrogen release mechanisms is crucial for practical applications.
Purpose of the Study:
- To investigate the low-temperature hydrogen release mechanism of amminelithium borohydride.
- To identify the key chemical bonds and interactions responsible for hydrogen release.
Main Methods:
- Analysis of temperature-sensitive chemical bonds, specifically N:→Li(+) and N-H…H-B.
- Investigating the role of ammonia stabilization in the hydrogen release process.
Main Results:
- Amminelithium borohydride releases hydrogen effectively at low temperatures.
- The process involves the stabilization of ammonia molecules.
- Recombination of the N-H…H-B bond is promoted, facilitating hydrogen release.
Conclusions:
- Low-temperature hydrogen release from amminelithium borohydride is feasible.
- Stabilizing ammonia and promoting N-H…H-B bond recombination are key mechanisms.
- This finding has implications for developing efficient hydrogen storage systems.
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