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Effect of Ce4+ and Ce3+ on the Hydrogen Release of NaAlH4
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Effect of Ce4+ and Ce3+ on the Hydrogen Release of NaAlH4
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National Natural Science Foundation of China (50806007)

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    摘要:

    通過(guò)PCT(Pressure-Content-Temperature)設(shè)備研究了催化劑CeCl3 和Ce(SO4)2對(duì)NaAlH4可逆儲(chǔ)氫性能的影響。結(jié)果顯示試樣總放氫量隨著CeCl3和Ce(SO4)2含量的增加呈先增加后降低的趨勢(shì)。在第一放氫階段，摻雜4 mol% CeCl3試樣的放氫速率和放氫量都優(yōu)于摻雜3 mol% Ce(SO4)2的試樣。在110，130，150和180 °C條件下，試樣的放氫速率和放氫量隨著溫度的升高明顯升高。

    Abstract:

    The effects of CeCl3 and Ce(SO4)2 doping on the hydrogen-release capacity of NaAlH4 have been studied by pressure-composition-temperature equipment. The results show that the total amount and the rate of hydrogen release first increase and then decrease with increasing of CeCl3 and Ce(SO4)2 contents. The rate and the amount of decomposition for the sample doped with 4 mol% CeCl3 in the first-stage dehydrogenation processes are both better than those for the sample doped with 3 mol% Ce(SO4)2. The rate and the amount of decomposition at 110, 130, 150 and 180 °C present an obvious increase with increasing of temperature.

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劉勝林,馬秋花,劉狀壯,鄭雪萍. Effect of Ce4+ and Ce3+ on the Hydrogen Release of NaAlH4[J].稀有金屬材料與工程,2011,40(12):2083~2087.[Liu Shenglin, Ma Qiuhua, Liu Zhuangzhuang, Zheng Xueping. Effect of Ce4+ and Ce3+ on the Hydrogen Release of NaAlH4[J]. Rare Metal Materials and Engineering,2011,40(12):2083~2087.]
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  • 收稿日期:2010-12-15
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