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Hydrogen storage reaction over a ternary imide Li2Mg2N3H3
Yongfeng Liu1, Chu Liang, Zhijun Wei
1Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China.
Physical Chemistry Chemical Physics : PCCP
|March 19, 2010
Summary
Researchers detailed the hydrogen storage reaction of lithium magnesium imide (Li(2)Mg(2)N(3)H(3)). The compound converts to Mg(NH(2))(2)-2LiH-MgNH upon hydrogen uptake, with MgNH improving dehydrogenation.
Area of Science:
- Materials Science
- Inorganic Chemistry
- Hydrogen Storage
Background:
- Hydrogen storage materials are crucial for clean energy technologies.
- Ternary imides are being explored for their potential in reversible hydrogen storage.
- Understanding reaction mechanisms is key to optimizing material performance.
Purpose of the Study:
- To elucidate the hydrogen storage reaction pathway of Li(2)Mg(2)N(3)H(3).
- To investigate the role of MgNH in the hydrogen storage process.
- To analyze the impact of MgNH on dehydrogenation thermodynamics and kinetics.
Main Methods:
- Chemical reaction analysis
- Thermodynamic analysis
- Kinetic analysis
Main Results:
- Li(2)Mg(2)N(3)H(3) reacts with 2 moles of H(2) per mole to form Mg(NH(2))(2)-2LiH-MgNH.
- The presence of MgNH significantly influences the dehydrogenation thermodynamics.
- MgNH addition enhances the dehydrogenation kinetics of the system.
Conclusions:
- The reaction mechanism of Li(2)Mg(2)N(3)H(3) for hydrogen storage has been clarified.
- MgNH is identified as a critical component for improving the hydrogen release properties of this ternary imide system.
- This study provides insights for designing advanced hydrogen storage materials.
![The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F54498.jpg&w=3840&q=50)
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