Figure 5.

The schematic illustration for N-doped mesoporous TiO2 nanorods. (a) Formation of colloidal nucleus. (b) Rearrangement of colloidal nucleus. (c) Formation of rod-like structures. (d) Formation of N-doped mesoporous TiO2 nanorods.

Zhou et al. Nanoscale Research Letters 2014 9:34   doi:10.1186/1556-276X-9-34
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