Carbon nanotubes and nanoporous activated carbons served as adsorbents for hydrogen storage. Carbon nanotubes were prepared by a special chemical vapor deposition method over a Co‐Mo/MgO catalyst, and nanoporous activated carbons were obtained from walnut shells. According to the Fourier transform infrared analysis, oxygenated functional groups were formed on the structures. The X‐ray diffraction and scanning electron microscopy results let conclude that the structures were not damaged by the acidic vapor method. The maximum experimental value for adsorption capacity was achieved under elevated pressure. The highest capacity of H₂ adsorption was detected for nitric acid‐modified carbon.

中文翻译：

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单壁和多壁碳纳米管与活性炭对储氢的影响

碳纳米管和纳米多孔活性炭充当储氢的吸附剂。碳纳米管是通过特殊的化学气相沉积方法在Co-Mo / MgO催化剂上制备的，并从核桃壳中获得了纳米孔活性炭。根据傅立叶变换红外分析，在结构上形成了氧化官能团。X射线衍射和扫描电子显微镜结果可以得出结论，该结构未受到酸性蒸气法的破坏。在升高的压力下达到最大吸附容量实验值。对于硝酸改性的碳，H ₂吸附的最大容量。