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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Hydrogen storage in carbon nanotubes and graphitic nanofibers
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Hydrogen storage in carbon nanotubes and graphitic nanofibers

机译：碳纳米管和石墨纳米纤维中的氢存储

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摘要

We review experiments and computer simulations of adsorption of hydrogen on carbon nanotubes and on graphitic nanofibers. New results for adsorption of hydrogen on bundles of nanotubes intercalated with alkali metals are presented. The size and charge of the metal clusters is explicitly accounted for through a simple model Charge transfer of electrons from the metal clusters to the nanotubes is also modeled. Results indicate that adsorption of hydrogen in metal-intercalated nanotube bundles is substantially enhanced compared with adsorption onto pure nanotubes. We compare simulations of adsorption in bundles with various lattice spacings to experimental results that claim swelling of nanotube bundles by adsorption of hydrogen. We find good agreement between the simulations and the experiments at higher pressures, indicating that hydrogen at 80 K probably does intercalate and swell nanotube bundles, thereby increasing the capacity of the sorbent.
机译：我们审查了氢在碳纳米管和石墨纳米纤维上的吸附的实验和计算机模拟。提出了氢吸附在插有碱金属的纳米管束上的新结果。金属簇的大小和电荷通过简单的模型明确说明，电子从金属簇到纳米管的电荷转移也被建模。结果表明，与在纯纳米管上的吸附相比，在金属插层式纳米管束中的氢吸附显着增强。我们将具有不同晶格间距的束中的吸附模拟与声称通过氢吸附使纳米管束溶胀的实验结果进行比较。我们在较高压力下的仿真和实验之间找到了很好的一致性，表明80 K的氢气可能会插入并膨胀纳米管束，从而增加了吸附剂的容量。

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