905157.fig.007a
(a)
905157.fig.007b
(b)
905157.fig.007c
(c)
905157.fig.007d
(d)
Figure 7: (a) Schematic device of the ammonia vapor-phase corrosion route. SEM images (b), rate cyclability (c), and a schematic diagram of discharge-charge (d) of CuO HMNGPAs [63].