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Hydrogen adsorption on a single-walled carbon nanotube material: a comparative study of three different adsorption techniques

机译:单壁碳纳米管材料上的氢吸附:三种不同吸附技术的比较研究

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摘要

Hydrogen adsorption measurements on mixed carbon material containing single-walled carbon nanotubes (SWNTs) obtained by the electric-arc method were carried out by three different techniques: a volumetric system, a gravimetric system and an electrochemical method. The found H_2 gas adsorption capacity (volumetric and gravimetric) is very low, around 0.01 wt percent at room temperature and pressure, increasing to 0.1 wt percent at 20 bar. Electrochemical measurements show a slightly higher capacity (0.1-0.3 wt percent) than volumetric and gravimetric data. The results obtained by the three different techniques are compatible within each other and they are also in good agreement with other previously reported data from different researchers.
机译:通过三种不同的技术对通过电弧法获得的包含单壁碳纳米管(SWNT)的混合碳材料的氢吸附量进行了测量:体积法,重量法和电化学法。发现的H_2气体吸附能力(体积和重量)非常低,在室温和压力下约为0.01 wt%,在20 bar时增加至0.1 wt%。电化学测量显示出比容量和重量数据稍高的容量(0.1-0.3重量%)。通过三种不同技术获得的结果相互兼容,并且与其他研究人员先前报告的其他数据也非常吻合。

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