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Study on Hydrogen Release Capacity of LiAlH4 Doped with CeO2
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Study on Hydrogen Release Capacity of LiAlH4 Doped with CeO2
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National Natural Science Foundation of China (51265028, 50905081)

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    摘要:

    通過PCT設備和SEM分析方法主要分析了CeO2對LiAlH4放氫性能的影響。結果顯示，摻雜 CeO2明顯縮短了LiAlH4的氫分解時間。在所有的試樣中，摻雜2 mol% CeO2的試樣開始放氫時間最早。有關放氫量的研究發(fā)現，摻雜1 mol% CeO2的試樣具有最大的放氫量。并且隨著摻雜量從1 mol%到5 mol%增加，試樣的總放氫量表現出一個下降趨勢。進一步有關微觀結構的研究發(fā)現，摻雜CeO2沒有引起LiAlH4微觀結構的變化，所有的試樣都顯示出一種絮狀結構

    Abstract:

    This study mainly analyzed the effect of CeO2 on the hydrogen release capacity of LiAlH4 by PCT (Pressure-Composition-Temperature) device and SEM (Scanning Electron Microscope) analysis method. The results show that with CeO2 doping shortens markedly the time of hydrogen release of LiAlH4. Among all samples, the dehydrogenation time of the sample doped with 2 mol% CeO2 is the earliest. The study on the amount of hydrogen release finds that the sample doped with 1 mol% CeO2 presents the largest dehydrogenation amount. And with the increase of the doping amount from 1 mol% to 5 mol%, the total hydrogen release amount of the samples presents a decrease trend. Furthermore, the study on microstructures show that doping with CeO2 does not cause any obvious change of the microstructure of LiAlH4, and all samples show a kind of flocculent structure

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劉勝林,馬秋花,呂 珩,鄭雪萍,馮 鑫,肖 果,鄭嬌嬌. Study on Hydrogen Release Capacity of LiAlH4 Doped with CeO2[J].稀有金屬材料與工程,2014,43(3):544~547.[Liu Shenglin, Ma Qiuhua, Lü Heng, Zheng Xueping, Feng Xin, Xiao Guo, Zheng Jiaojiao. Study on Hydrogen Release Capacity of LiAlH4 Doped with CeO2[J]. Rare Metal Materials and Engineering,2014,43(3):544~547.]
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  • 收稿日期:2013-03-18
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  • 在線發(fā)布日期: 2014-06-27
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