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| 新型储氢复合材料Mg/MWNTs的氢化性能 | |
| 引用本文： | 陈东,陈廉,刘实,马常祥,陈德敏,王隆保,杨柯.新型储氢复合材料Mg/MWNTs的氢化性能[J].中山大学学报(自然科学版),2003,42(Z1):32-34. |
| 作者姓名： | 陈东 陈廉 刘实 马常祥 陈德敏 王隆保 杨柯 |
| 作者单位： | 1. 中国科学院金属研究所,辽宁,沈阳,110016;东北大学理学院,辽宁,沈阳,110006 2. 中国科学院金属研究所,辽宁,沈阳,110016 3. 东北大学理学院,辽宁,沈阳,110006 |
| 基金项目： | the National Major Fundamental Research Project，国家自然科学基金 |
| 摘 要： | 采用催化反应球磨方法,研制成复合材料Mg-MWNTs(w=5%,20%).利用储放氢实验装置,测试了Mg/MWNTs吸放氢动力学性能.研究发现,复合材料Mg-MWNTs(w=5%,20%)在298
K和2.0 MPa氢压时最大储氢量都很低;在373 K、473 K和553 K温度时,Mg-5%(w)MWNTs的最大储氢量分别为5.34%、5.89%
和6.08%;而Mg-20%(w) MWNTs只有2.11%、2.68% 和2.75%.与其它储氢复合材料相比,复合材料Mg-5%(w)MWNTs在保持较好的最大储氢量基础上,具有很好的吸放氢动力学性能. |
| 关 键 词： | 复合材料Mg/MWNTs 催化反应球磨 吸放氢动力学性能 |
Hydriding/dehydriging Properties of Advanced Hydrogen Storage Mg/MWNTs Composites |
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| Abstract.Hydriding/dehydriging Properties of Advanced Hydrogen Storage Mg/MWNTs Composites[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2003,42(Z1):32-34. | |
| Authors: | Abstract |
| Abstract: | The composite Mg-wMWNTs(w=5%,20%) was made by catalytic reacting ball-milling under the hydrogen atmosphere. The absorption/desorption kinetics for the composite Mg/MWNTs were examined by taking the apparatus for hydrogen adsorption/desorption. It was found that under 2.0 MPa hydrogen pressure, the maximum hydrogen storage capacities of the two composites(w=5%,20%) were very low and similar at 298, 373, 473 and 553 K, the maximum hydrogen storage capacities of the Mg-5%(w) MWNTs were respectively 5.34%, 5.89% and 6.08%; however, only 2.11%, 2.68% and 2.75% for the Mg-20%(w) MWNTs. Compared with the other hydrogen storage composite materials, the Mg-5%(w) MWNTs not only keeps the maximum hydrogen storage capacities better but also has good hydrogen absorption/desorption rates. |
| Keywords: | Mg/MWNTs composite catalytic reacting ball milling hydriding/dehydriging property |
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