论文部分内容阅读
通过PCT设备和SEM分析方法主要分析了CeO2对LiAlH4放氢性能的影响。结果显示,掺杂CeO2明显缩短了LiAlH4的氢分解时间。在所有的试样中,掺杂2 mol%CeO2的试样开始放氢时间最早。有关放氢量的研究发现,掺杂1 mol%CeO2的试样具有最大的放氢量。并且随着掺杂量从1 mol%到5 mol%增加,试样的总放氢量表现出一个下降趋势。进一步有关微观结构的研究发现,掺杂CeO2没有引起LiAlH4微观结构的变化,所有的试样都显示出一种絮状结构。
The influence of CeO2 on the hydrogen evolution performance of LiAlH4 was mainly analyzed by PCT equipment and SEM analysis. The results show that doping CeO2 significantly shortens the hydrogen decomposition time of LiAlH4. In all the samples, the sample with 2 mol% CeO2 was the first to start hydrogen releasing. The study on the amount of hydrogen released showed that the sample doped with 1 mol% CeO2 had the maximum amount of hydrogen released. And with the doping amount increased from 1 mol% to 5 mol%, the sample total hydrogen release showed a downward trend. Further studies on the microstructures found that doping CeO2 did not cause changes in the microstructure of LiAlH4, and all the samples showed a flocculent structure.