Synthesis of Nb and La doped TiO2 for gas sensors
Choi, YJ; Banerjee, A; Bandyopadhyay, A; Bose, S
| HERO ID | 1656215 |
|---|---|
| Year | 2005 |
| Title | Synthesis of Nb and La doped TiO2 for gas sensors |
| Book Title | CERAMIC TRANSACTIONS |
| Authors | Choi, YJ; Banerjee, A; Bandyopadhyay, A; Bose, S |
| Editor | Gogotsi, Y |
| Volume | 159 |
| Page Numbers | 67-74 |
| Abstract | Nanostructured TiO2 based materials for gas sensors were synthesized using citrate-nitrate auto combustion method as a function of different dopants. Titanyl nitrate solution was prepared using commercial TiO2 powder, hydrofluoric acid (HF) and concentrated nitric acid (HNO3). The amount of template material was optimized to produce TiO2 nanoparticles. La2O3 and Nb2O5 were used as dopants in TiO2. X-ray diffraction analysis confirmed formation of anatase phase TiO2. The BET specific average surface area analysis showed a decrease in surface area with the addition of dopants and as the dopant concentration increased, surface area decreased. Conductivity of these discs was measured in the temperature range between 300 and 800 degreesC in the furnace air environment as a function of composition. Particle size analysis showed that the size varied between 100nm and 400nm for pure TiO2 and doped TiO2. Our initial results indicate that dopants chemistry and amount has significant influence on the conductivity for these nano-structured TiO2 based ceramics. |
| Wosid | WOS:000226902400008 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000226902400008 Journal:CERAMIC NANOMATERIALS AND NANOTECHNOLOGY III 1042-1122 |
| Is Public | Yes |
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