Sentences with phrase «titanium oxide surface»
At the Vienna University of Technology, it has now been possible to selectively switch individual oxygen molecules sitting on a titanium oxide surface between a non-reactive to a reactive state using a special force microscope.
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In the experiments, oxygen molecules were studied on the surface of a titanium oxide crystal at extremely low temperatures.
The same process also happens when the surface of the titanium oxide is irradiated with light — electrons are liberated inside the material, and can come to the surface to activate one of the oxygen molecules.
Kepler - 13Ab's strong surface gravity — six times greater than Jupiter's — then pulls the titanium oxide snow out of the upper atmosphere and traps it in the lower atmosphere on the nighttime side of the planet.
«We show that uptake of atmospheric NH3 (ammonia) onto surfaces containing TiO2 (titanium dioxide) is not a permanent removal process, as previously thought, but rather a photochemical route for generating reactive oxides of nitrogen that play a role in air pollution and are associated with significant health effects,» the authors write.
Methods: In the experiments, the researchers dispersed or spread the vanadium oxide catalyst on a support of titanium dioxide to create a relatively large surface area with more reactive sites.