arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.00880cond-mat.mtrl-sci
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经典分子动力学在实际条件下碳纳米膜的理论形成

Theoretical formation of carbon nanomembranes under realistic conditions using classical molecular dynamics

J. Ehrens, F. Gayk, P. Vorndamme, T. Heitmann, N. Biere, D. Anselmetti, Xianghui Zhang, A. Gölzhäuser, J. Schnack

摘要:

由芳香族前驱体分子制备的碳纳米膜是具有宏观横向尺寸的自立式纳米薄材料。虽然生产了大约二十年的各种版本,但对其内部结构知之甚少。在这里,我们提出了第一个系统的理论尝试,使用经典的分子动力学模拟的碳纳米膜的形成,结构和机械性能建模。我们发现理论上的生产情况下,稳定的膜形成。它们具有实验观察到的孔隙。然而,它们的杨氏模量系统地大于实验确定的。

英文摘要:

Carbon nanomembranes made from aromatic precursor molecules are free standing nanometer thin materials of macroscopic lateral dimensions. Although produced in various versions for about two decades not much is known about their internal structure. Here we present a first systematic theoretical attempt to model the formation, structure, and mechanical properties of carbon nanomembranes using classical molecular dynamics simulations. We find theoretical production scenarios under which stable membranes form. They possess pores as experimentally observed. Their Young's modulus, however, is systematically larger than experimentally determined.

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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