Hydrogen Storage Properties of LiNH2/MgH2 Complex Materials with Ti Catalyst by Mechanical Alloying

Zhi Qiang Lan; Song Liu; Shu Bo Li; Wen Lou Wei; Jin Guo

doi:10.4028/www.scientific.net/AMR.898.93

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 898Hydrogen Storage Properties of LiNH2/MgH2 Complex...

Hydrogen Storage Properties of LiNH₂/MgH₂ Complex Materials with Ti Catalyst by Mechanical Alloying

Abstract:

A LiNH₂/MgH₂ (1:1) complex was prepared by mechanical alloying and the effects of Ti and TiF₃ on the characteristics of hydrogen storage were investigated. It was found that LiMgN and Li₂NH phases exist as the main phases in the LiNH₂/MgH₂ (1:1) complex and that Mg (NH₂)₂ and NH₄HF₂ phases appear when TiF₃ is added. The onset temperature of hydrogen desorption was reduced with increasing mill time, and the hydrogen saturation absorption temperature for the LiNH₂/MgH₂ complex decreased about 30°C with the addition of Ti and TiF₃. Ti and TiF₃ as catalysts are favorable for reducing the dehydrogenation temperature. The addition of TiF₃ can also facilitate the increase of hydrogen desorption for the LiNH₂/MgH₂ (1:1) complex.

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Advanced Materials Research (Volume 898)

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93-97

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https://doi.org/10.4028/www.scientific.net/AMR.898.93

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February 2014

Authors:

Zhi Qiang Lan*, Song Liu, Shu Bo Li, Wen Lou Wei, Jin Guo

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Chemical Techniques, Composite Material, Thermodynamic Properties

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