Fig. 3
From: TiO2-Based Nanomaterials for Gas Sensing—Influence of Anatase and Rutile Contributions
Comparison between anatase- and rutile-predominated n-type TiO2-SnO2 nanopowders obtained by flame spray synthesis (FSS): a X-ray diffraction patterns, b resistive-type response R 0/R to hydrogen at 300 °C, c TEM and SEM images: f R, rutile content; d A, diameter of anatase crystallite; d R, diameter of rutile crystallite; R 0, electrical resistivity in the reference atmosphere (air) and R, electrical resistivity under exposure to detected gas