Figure 8.
Cold compression of carbon nanotubes (CNTs). (a) XRD patterns of (bottom) starting phase of CNT bundles and (top) recovered phase released from 100 GPa. The inset image shows the electron diffraction pattern of the recovered sample. Adapted with permission from ref. [32]. Copyright 2004 National Academy of Sciences. (b) XRD patterns of experimentally obtained V-carbon by cold compressing C70 peapods compared with the simulated result and previously proposed post-graphite phases. Adapted with permission from ref. [33]. Copyright 2017 American Physical Society.