Properties of Y-Shaped PFO-DBT Nanotubes

Figure 2

FESEM images of unannealed and annealed Y-shaped PFO-DBT nanotubes with different aging time. (a) Unannealed solution; (b) annealed solution of 1 hour aging time; (c) annealed solution of 24 hours aging time; (d) annealed solution of 72 hours aging time (insets show the enlarged respective images).

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