私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

Links
Contact Info.
  • Address:山東青島市黃島區長江西路66號
  • Zip:266580
  • Tel:0532-86981169
  • Fax:
  • Email:xueqz@upc.edu.cn
Current Location :> Home > Publications > Text
Chemical Modification: an Effective Way of Avoiding the Collapse of SWNTs on Al Surface Revealed by Molecular Dynamics Simulations
writer:Jie Xie, Qingzhong Xue(*), Keyou Yan, Huijuan Chen, Dan Xia, and Mingdong Dong(*)
keywords:Chemical Modification
source:期刊
specific source:J. Phys. Chem. C 2009, 113, 14747–14752
Issue time:2009年

The rapid collapse of intrinsic single-walled carbon nanotube (SWNT) on the aluminum surface is observed using molecular dynamics simulation. The collapsing threshold is ∼10 Å, and the length has no influence on its collapse. Furthermore, we report that the structural stability of cylindrical SWNTs on the aluminum surface can be improved through the surface modification method. The stability of SWNTs can be enhanced by increasing the modification coverage. When the modification coverage exceeds 3.3% and 3.8% coverage, respectively, both amidogen- and carboxyl-modified SWNTs can basically maintain the cylindrical structure in our described systems. The results also show that, to avoid SWNTs collapse by chemical modification, the longer and larger SWNTs are, the more modification coverage SWNTs require, and vice versa. Our method allows potentially used modified SWNTs as nanocontainers for maintaining or transporting molecules, etc.

全文下載:u.115.com/file/f56c3f245c