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Effect of different additives on the properties of lithium alanate |
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| Authors: | Xueping Zheng Ping Li Xuanhui Qu IS Humail Yanghuan Zhang Guoqing Wang |
| Affiliation: | aSchool of Materials Science and Engineering, Chang'an University, Xi'an 710061, China;bSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;cFunctional Material Research Institute, Central Iron and Steel Research Institute, Beijing 100086, China |
| Abstract: | LiAlH4 doped with Ni and Ce(SO4)2 additives and the effect of doping on temperature and hydrogen release were studied by pressure-content-temperature (PCT) experiment and X-ray diffraction (XRD) analysis.It is indicated that doping with Ni induces a significant decrease in temperature in the first step and LiAlH4 doped with 1mol% Ni presents the most absorption of hydrogen.Doping with Ce(SO4)2 also causes a marked decrease,while the amount of hydrogen release changes only slightly.The results from X-ray diffraction analysis show that doping does not cause any structural change; Ni and Ce-containing phases are not observed at room temperature or even at 250℃. |
| Keywords: | hydrogen storage alloys lithium alanate additives absorption hydrogen release |
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