| Autor: |
Yu, Dan Ni, Liu, Wen Xiu, Ma, Jing, Qu, Xiao Guang, Cao, Wen Bin, Zhang, Zhong Ying, Mao, Jing Hong |
| Zdroj: |
Materials Science Forum; April 2009, Vol. 620 Issue: 1 p687-690, 4p |
| Abstrakt: |
Titanate nanotubes have been directly prepared by hydrothermally treating P25 powders in NaOH aqueous solution. Effect of calcination temperature on crystal phase, morphologies and specific surface area of the as-synthesized nanotubes has been investigated in detail. The Na2Ti3O7 tubular structure could be kept well even after calcination at 600 °C and began to transform to Na2Ti6O13 nanorods at around 645 °C. The specific surface area of the as-synthesized nanotubes was 200.6 m2/g and reached to the maximum of 347.9 m2/g after calcination at 300 °C and then decreased sharply with the further increase of the calcination temperature. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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