Fig. 2From: Effect of Enhanced Thermal Stability of Alumina Support Layer on Growth of Vertically Aligned Single-Walled Carbon Nanotubes and Their Application in Nanofiltration MembranesAFM images of alumina and Fe/Mo/alumina catalyst surface that show morphology change by thermal annealing (Ta = 850 °C.) Alumina was deposited by nonreactive sputtering with argon (a) and by reactive sputtering with argon and oxygen (b). The scanning area of each image is 1 × 1 μm2Back to article page