| Electrochemical Behavior of Lao. 7Mgo. 3 （ Ni1-x Cox ） 3.5 （ 0≤x≤0.5 ）Hydrogen Storage Alloys |
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| 作者姓名： | FuGuifu AoQing SunLiangcheng LiDehui ZhuXinde LiShengli |
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| 作者单位： | [1]CollegeofMaterialScienceandEngineering,ShandongUniversity,Jinan250061,China [2]BaotouRareEarthsInstitute,Baotou014010,China [3]CollegeofMaterialScienceandEngineering,ShandongUniversity,Jinan250061,China／／BaotouRareEarthsInstitute,Baotou014010,China |
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| 摘 要： | The low-temperature phase transformation of LaCrO3 and doped-LaCrO3 was studied by DSC andXRD, and thermal expansion during phase trans formation was measured. It is found that the phase transformation of LaCrO3 begins near 240℃ and ends up to 265℃. The phase transformation temperature range obviously raises as the Ca content increases. The low temperature transformation changes the crystal structure of LaCrO3 and Ca-doped LaCrO3 from orthorhombic to rhombohedral and is a heat-absorbing reaction.There is no weight change but shrink of the sample happened during transformation.
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| 关 键 词： | 电化学性质 储氢合金 循环寿命 阻抗光谱 稀土元素 |
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