【作者】 朱宏伟； 曹安源； 李雪松； 徐才录； 毛宗强； 梁吉； 吴德海；

【Author】 Zhu Hongwei, Cao Anuran, Li Xuesong, Up Kailua, Mao Zinging, Lang Jig, Wu Dehai(Dept. of Mechanical Engineering, State Key Laboratory of Automotive Safety andEnergy, Tsinghua university, Beijing 100084, P. R. China) (Institute of Nuclear Energy Technology, Tsinghua university, Beijing 100084,P. R. China)

【机构】 清华大学机械工程系； 清华大学核能技术研究院；

【摘要】 实验采用催化裂解液态碳氢化合物的方法制备了两种形貌的多层碳纳米管(定向碳纳米管阵列和随机排列的碳纳米管)。在室温、中压(3~10MPa)的条件下进行了氢气物理吸附实验。结果表明,走向碳纳米管阵列的储氢量可达3％。使用氮气吸附(77K)、扫描电镜(SEM)和透射电镜(TEM)对碳纳米管的微观结构进行了综合分析,并论述了碳纳米管孔分布对其储氢性能的影响。更多还原

【Abstract】 The bundles of well-aligned and random ordered carbon nanotubes were both produced by catalytic pyrolysis of carbon source with quartz glass as substrate. They were employed to adsorb hydrogen tinder moderate pressure (3-10 megapascal) at room temperature. It was found that the bundles of well-aligned carbon nanotubes have a hydrogen storage capacity of over 3 wt.%, which suggested that the multi-walled carbon nanotubes could be used as a promising material for hydrogen storage. The morphology and pore strucutre were analyzed by N2 adsorption at 77K, SEM and TEM. According to N2 adsorption, the bundles of aligned carbon nanotubes have a narrow pore distribution mainly in micro- and meso-pores, which is favorable for hydrogen uptake.更多还原