Effect of Ce⁴⁺ and Ce³⁺ on the Hydrogen Release of NaAlH₄

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• 作者：Liu Shenglin^a ; ^{zxp2004b@yahoo.com.cn} ; Ma Qiuhua^b ; Liu Zhuangzhuang^a ; Zheng Xueping^a
• 关键词：CeCl3 ; Ce(SO4)2 ; NaAlH4 ; hydrogen-release capacity
• 刊名：Rare Metal Materials and Engineering
• 出版年：2011
• 期刊代码：P57_18755372
• 类别：et
• 出版时间：December, 2011
• 卷：40
• 期：12
• 页码：2083-2087
• 文件大小：335 K

摘要

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 掳C present an obvious increase with increasing of temperature.