Figure 7.

TEM images of samples prepared in (a) 0.1 M ZnCl2–HMT mixed 50 vol.% EG aqueous solution followed by calcination at (b) 300 °C, (c) 600 °C, (d) 1200 °C

Long et al. Nanoscale Research Letters 2008 4:247-253   doi:10.1007/s11671-008-9233-2