Figure 1

Photo (a), SEM (b–f), typical TEM (g) and HRTEM (h) images of 2%GTF. The inset in (g) is SAED pattern and (h) is corresponding to the area encircled in (g).

Photo (a), SEM (b–f), typical TEM (g) and HRTEM (h) images of 2%GTF. The inset in (g) is SAED pattern and (h) is corresponding to the area encircled in (g).