|
Resolution: standard / high Figure 7.
SEM images of Nb2O5 nanotubes with a smaller diameter (approximately 200 nm). These nanotubes products were obtained with the same etching route. Red circles
in Figure 7c and d indicate the hollow section of nanotubes.
Liu et al. Nanoscale Research Letters 2011 6:138 doi:10.1186/1556-276X-6-138 |
