研究了经不同预处理后多壁碳纳米管的储氢性能.结果表明:多壁碳纳米管的吸附量在0～12 MPa范围内有一个极大值,极值点的压力和吸附量与样品的种类,处理方法等密切相关;不同量不同碱金属的掺杂对多壁碳纳米管吸附的影响稍有不同;加热活化对提高多壁碳纳米管的吸附量很有效,常温下,在将近9 MPa的平衡压力下,可以达到4.48%(质量分数)的最大吸附量.适当增加环境温度有利于吸附.%In this paper, the hydrogen storage in pretreated carbon nanotuhes is studied. The results indicate that there exists an uptake maximum at certain pressure between 0 ～ 12 MPa, and this maximum is related with the kind and the treatment of the samples. For different quantity and different kinds of alkali-doped samples, the alkalis plays different roles.High-temperature activation is effective for adsorption. At room temperature, under 9 MPa, the highest uptake is about 4. 48％(mass ratio). Increasing ambient temperature properly benifits adsorption.
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