Figure 3.

a FESEM, b TEM images and c SAED pattern of the 10-h sample. d FESEM, e TEM and f HRTEM images of the 48-h sample. Insete is the SAED pattern

Yang et al. Nanoscale Research Letters 2010 5:961-965   doi:10.1007/s11671-010-9589-y