Fig 1.
A silicon dioxide network illustrating covalent bonds between silicon and oxygen atoms.
Fig 2.
(a) Original form of SiO2 layer structure; (b) Brick form of SiO2 layer structure.
Fig 3.
layer structure for n = 2.
Fig4.
(i, m) layer structure of Bricks form for n = 3.
Fig5.
Layer Structure.
Fig6.
C8 Layer Structure for n = 2.
Fig7.
SiO2 nanotube (i , m).
Fig8.
SiO2 nanotube (i , m) for n = 2.
Fig9.
SiO2 nanotori (i , m).
Fig10.
SiO2 nanotori (i , m) for m = 2.