Ab initio molecular dynamics simulation on the formation process of He@C-60 synthesized by explosion

作者:Li, Jian-Ying; Liu, Li-Min; Jin, Bo; Liang, Hua; Yu, Hai-Jun; Zhang, Hong-Chang; Chu, Shi-Jin; Peng, Ru-Fang*
来源:Journal of Molecular Modeling, 2013, 19(4): 1705-1710.
DOI:10.1007/s00894-012-1737-0

摘要

The applications of endohedral non-metallic fullerenes are limited by their low production rate. Recently, an explosive method developed in our group shows promise to prepare He@C-60 at fairly high yield, but the mechanism of He inserting into C-60 cage at explosive conditions was not clear. Here, ab initio molecular dynamics analysis has been used to simulate the collision between C-60 molecules at high-temperature and high-pressure induced by explosion. The results show that defects formed on the fullerene cage by collidsion can effectively decrease the reaction barrier for the insertion of He into C-60, and the self-healing capability of the defects was also observed.

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