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Effect of catalyst LaCl3 on hydrogen storage properties of lithium alanate (LiAlH4) |
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| Authors: | Zheng Xueping Li Ping Islam S Humail An Fuqiang Wang Guoqing Qu Xuanhui |
| Affiliation: | aKey Laboratory of New Energy Materials and Technologies, School of Materials Science and Engineering, USTB, China bFunctional Material Research Institute, Central Iron and Steel Research Institute, Beijing 100083, China |
| Abstract: | LiAlH4 doped with LaCl3 additives were studied by PCT experiment and X-ray diffraction (XRD). Doping with 1 mol% LaCl3 resulted in a great decrease in the amount of hydrogen release associated with the first and second dehydrogenation steps. Increasing the amount of LaCl3 from 1 to 6 mol% caused such marked changes in behavior that the total amount of hydrogen release increased first and then decreased. The study on the first rehydrogenation cycle showed that LiAlH4 doped with 2 mol% LaCl3 presents the greatest absorption of hydrogen of about 0.8 wt%. The results from XRD spectra analysis indicated the reversibility of Li3AlH6. |
| Keywords: | LiAlH4 LaCl3 additives Hydrogen release |
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