Mg/Mg_(1.8)La_(0.2)Ni纳米复合材料的吸放氢性能研究

孙洪亮; 张燕燕; 张海昌; 杨化滨; 周作祥

doi:10.61558/2993-074X.1794

电化学 >

2007 , Vol. 13 >Issue 2: 132 - 135

DOI: https://doi.org/10.61558/2993-074X.1794

研究论文

Mg/Mg_(1.8)La_(0.2)Ni纳米复合材料的吸放氢性能研究

孙洪亮 ,
张燕燕 ,
张海昌 ,
杨化滨 ,
周作祥

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南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所天津300071,天津300071,天津300071,天津300071,天津300071

收稿日期: 2007-05-28

修回日期: 2007-05-28

网络出版日期: 2007-05-28

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Hydriding and Dehydriding Properties of Mg/Mg_(1.8)La_(0.2)Ni Nanocomposites

SUN Hong-liang ,
ZHANG Yan-yan ,
ZHANG Hai-chang ,
YANG Hua-bin ,
ZHOU Zuo-xiang

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(Institute of New Energy Material Chemistry,Nankai University,Tianjin 300071,China

Received date: 2007-05-28

Revised date: 2007-05-28

Online published: 2007-05-28

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摘要

应用高能球磨法制备Mg-x%Mg1.8La0.2Ni(x=10、20和30)纳米复合储氢材料.X射线衍射(XRD)、透射电镜(TEM)和选区电子衍射(SAED)测试表明,该复合材料具有纳米晶和非晶态混合结构的性质,吸氢温度降低,较好的吸放氢动力学性能,在423K,2.5MPa氢压的条件下,50s内即可达到最大吸氢量.

关键词： 燃料电池; 镁基合金; 复合储氢材料; 高能球磨

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孙洪亮 , 张燕燕 , 张海昌 , 杨化滨 , 周作祥 . Mg/Mg_(1.8)La_(0.2)Ni纳米复合材料的吸放氢性能研究[J]. 电化学, 2007 , 13(2) : 132 -135 . DOI: 10.61558/2993-074X.1794

Abstract

Mg-x %Mg1.8La0.2Ni(x=10,20 and 30)nanocomposites have been synthesized by high-energy ball milling method.Results of the X-ray diffraction(XRD),transmission electron microscopy(TEM)and selected area electron diffraction(SAED)tests were showed that each composite had a nanocrystalline/amorphous structure,which was beneficial for the improvement of the hydriding and dehydriding properties of Mg.The hydrogen absorption temperature decreased and the hydrogen sorption kinetics were improved.Under the conditions of 423 K and the hydrogen pressure of 2.5MPa,each composite could reach the maximum hydriding capacity within 50 s.

Key words： fuel cell; magnesium-based alloy; hydrogen storage composite material; high-energy ball milling

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