一维碳纳米材料的高压结构相变  

High Pressure Induced Transformations in One-Dimensional Carbon Nanomaterials

作　　者：姚明光[1] 杜明润 朱陆尧 刘冰冰[1] 

机构地区：[1]吉林大学超硬材料国家重点实验室,吉林长春130012

出　　处：《高压物理学报》2013年第6期793-801,共9页Chinese Journal of High Pressure Physics

基　　金：973计划(2011CB808200);国家自然科学基金(10979001;11104105;51025206;51032001);长江学者奖励计划;长江学者和创新团队发展计划(IRT1132)

摘　　要：研究一维碳纳米材料高压结构的转变,能够加深对碳纳米材料新特性的认识,对制备一维超硬碳纳米材料具有重要意义。介绍了本研究组近年来在一维碳纳米材料方面开展的相关研究,包括富勒烯纳米管/棒、单壁碳纳米管,以及富勒烯填充碳纳米管形成的C60填充单壁碳纳米管(Peapod)结构,在高压下的结构稳定性、结构相变、压致键合变化等;揭示了纳米尺寸效应和一维限域效应对富勒烯高压结构相变的影响;揭示了碳纳米管在高压下的结构相变过程,并给出了其发生管内和管-管间聚合成键的实验依据。High pressure studies on one-dimensional （1D） carbon nanomaterials can provide deep in- sight into the new properties of carbon nanomaterials,which is also important for the fabrication of 1D superhard carbon nanomaterials. Here we present our recent research progress on high pressure stud- ies of 1D carbon nanomaterials, including the results on structure stability, strdcture transitions and bonding change of fullerene nanotubes/nanorods, single-walled carbon nanotubes （SWNTs） and C60 filled SWNTs （C60@SWNTs） under pressure. The effect of nanosize and 1D nanoconfinement on the transformations of fullerenes under pressure is revealed. We also show how the structures of SWNTs transform under pressure, and further present the experimental evidence for the bonding formation of inter- and intra-tubes in compressed SWNTs.

关 键 词：碳纳米管 富勒烯 高压相变 尺寸效应 

分 类 号：O521.2[理学—高压高温物理]