514851.fig.008a
(a)
514851.fig.008b
(b)
514851.fig.008c
(c)
514851.fig.008d
(d)
Figure 8: (a) , heating rate of 5 K/min, (b) , heating rate of 10 K/min, (c) , heating rate of 15 K/min, and (d) , heating rate of 20 K/min. (The horizontal axis and vertical axis is, respectively, -DTG and -DTG, the colour as dimension).