Highly Ordered Boron Nitride Nanotube Arrays with Controllable Texture from Ammonia Borane by Template-Aided Vapor-Phase Pyrolysis

Figure 6

HRTEM images of the BN layers after heating to 1300 (a), 1500 (b), 1600 (c), and 1700^°C (d).

(a)

(b)

(c)

(d)