Solvent- and catalyst-free hydrogenation synthesis of lithium hydride at high altitude

A solvent- and catalyst-free hydrogenation synthesis methodology for lithium hydride (LiH) was developed at high altitude. The implementation of a dual thermostatic process proved to be pivotal in achieving high-crystallinity in the synthesized LiH. The synthesized LiH demonstrates a high degree of...

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Bibliographic Details
Published inChemical engineering science Vol. 295; p. 120158
Main Authors Zhang, Siyuan, Ma, Liang, Liu, Weichao, Dong, Mingzhe, Pang, Quanshi, Li, Quan, Wu, Zhijian, Ye, Xiushen
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 05.08.2024
Subjects
Catalyst-free
Hydrogen storage
Hydrogenation synthesis
LiH
Hydrogen storage
LiH
Hydrogenation synthesis
Catalyst-free
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Summary:A solvent- and catalyst-free hydrogenation synthesis methodology for lithium hydride (LiH) was developed at high altitude. The implementation of a dual thermostatic process proved to be pivotal in achieving high-crystallinity in the synthesized LiH. The synthesized LiH demonstrates a high degree of purity, reaching 99%. Hydrolysis experiments were conducted to measure the dehydrogenation amount, revealing a hydrogen weight percentage of 12.1%. The dehydrogenation rate was determined to be as high as 0.90 L/g·min. Furthermore, a comprehensive series of in-situ X-ray diffraction (XRD) and Raman spectroscopic characterizations were undertaken to elucidate the reaction dynamics of LiH when natural exposed to atmospheric conditions. This study presents an approach for the rapid and efficient production of lithium-based materials on a large scale intended for hydrogen storage.
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2024.120158