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arXiv 0909.1168cond-mat.mes-hall
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氢诱导富勒烯和碳纳米管分解的从头算研究

Hydrogen-induced disintegration of fullerenes and nanotubes: An ab initio study

Savas Berber, David Tomanek

摘要:

我们使用从头算密度泛函计算研究氢诱导的单壁和多壁碳富勒烯和碳纳米管的衰变。我们的研究结果表明,氢原子优先沿sp2键合的碳纳米结构中的线化学吸附,局部削弱碳键和释放应力。对于特定的结构布置,氢通过诱导逐步局部分裂导致最外壁的分解来帮助释放累积的应力。

英文摘要:

We use ab initio density functional calculations to study hydrogen-induced disintegration of single- and multi-wall carbon fullerenes and nanotubes. Our results indicate that hydrogen atoms preferentially chemisorb along lines in sp2 bonded carbon nanostructures, locally weakening the carbon bonds and releasing stress. For particular structural arrangements, hydrogen helps to relieve the accumulated stress by inducing step-wise local cleavage leading to disintegration of the outermost wall.

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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