Table 1

The anodic conditions and morphology parameters of the nanotubes prepared in the electrolytes containing 0.175 M NH4F and different volume ratios of water and glycerol

Samples

Electrolytes

Voltage (V)

Anodic time (h)

Tube length (nm)

Tube mouth diameter (nm)


1

Water/glycerol (Vol. 3:97%)

30

3

1,190 ± 10

2

6

1,240 ± 20

60 ± 5

3

12

1,720 ± 20

70 ± 5

4

Water/glycerol (Vol. 50:50%)

20

2

570 ± 10

80 ± 5

5

Water/glycerol (Vol. 0:100%)

30

3

830 ± 10


Cao et al. Nanoscale Res Lett 2011 6:64   doi:10.1007/s11671-010-9812-x

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