Table 2 Summary of the experimental results of three different systems studied in this work
From: TiO2-Based Nanomaterials for Gas Sensing—Influence of Anatase and Rutile Contributions
System | Sample | SSA (m2/g) | f R | d A (nm) | d R (nm) | R 0/R at 300 °C, 3000 ppm H2 | Figure |
|---|---|---|---|---|---|---|---|
Undoped TiO2 | As-obtained | 67.7 | 0.07 | 20 | 16 | 4 | 1 |
Annealed at 700 °C | – | 0.75 | 37 | 57 | 10 | ||
TiO2:5 at.% Cr | Mostly anatase | 126.6 | 0.16 | 9 | 8 | 3 | 2 |
Mostly rutile | 102.9 | 0.77 | 12 | 11 | 12 | ||
TiO2-SnO2 | TiO2 | 57 | 0.05 | 25 | 9 | 2 | 3 |
10% SnO2 | 60 | 0.73 | 28 | 14 | 8.5 |