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arXiv 0901.1029cond-mat.mtrl-sci
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氢在六角硅纳米管上的吸附

Hydrogen adsorption on hexagonal silicon nanotubes

Junga Ryou, Suklyun Hong, Gunn Kim

摘要:

本文采用第一性原理研究了氢在六方单壁硅纳米管(SiNTs)上的吸附几何结构和吸附能量。研究了氢分子在SiNTs中的吸附行为。最稳定的物理吸附配置的结合能计算为小于0.1 eV。还研究了H_2分子离解的能垒。最后,我们考虑在SiNTs中封装H2分子。讨论了SiNTs作为贮氢材料的可能性。

英文摘要:

We present a first-principles study of geometrical structure and energetics of hydrogen adsorbed on hexagonal single-walled silicon nanotubes (SiNTs). The adsorption behaviors of hydrogen molecules in SiNTs are investigated. The binding energies for the most stable physisorbed configurations are calculated to be less than 0.1 eV. The energy barriers are also investigated for dissociation of H2 molecules. Finally, we consider encapsulation of H2 molecules in SiNTs. The possibility of SiNTs as hydrogen storage materials is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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