Figure 1

(a) Illustration of formation of PPy nanotube arrays via ZnO nanorod template route; (b) the control of diameter of PPy nanotubes; (c) the control of wall thickness of PPy nanotubes.
(a) Illustration of formation of PPy nanotube arrays via ZnO nanorod template route; (b) the control of diameter of PPy nanotubes; (c) the control of wall thickness of PPy nanotubes.