gas phase – TechConnect Briefs

Photocatalytic activity of nanotubular TiO2 films obtained by anodic oxidation: a comparison in gas and liquid phase

Sanabria B.E., Strini A., Schiavi L., Diamanti M.V., Pedeferri M.P., Politecnico di Milano, IT

The immobilization of nanostructured photocatalysts is of great importance in the purification of both polluted air and liquids (e.g. industrial wastewaters). Titanium dioxide films with nanotubular morphology and good photocatalytic efficiency in both environments can [...]

Gas phase synthesis of silica nanoparticles in a hybrid microwave-plasma hot-wall reactor

Abdali A., Moritz B., Wiggers H., Schulz C., University of Duisburg-Essen, DE

A microwave plasma reactor was constructed for gas phase synthesis of silica nanoparticles from tetraethoxysilane and a subsequent hot-wall furnace was used to enable for different temperature/time profiles. This combination has enabled us to investigate [...]

Gas-phase synthesis of highly-specific nanoparticles on the pilot-plant scale

Huelser T., Schnurre S.M., Schulz C., Wiggers H., Institute of Energy and Environmental Technology, DE

Highly-specific nanoparticles from the gas-phase provide promising properties for a large variety of applications as the size dependence of their properties allows to tailor materials for specific applications. Industrial nanoparticle production, however, is covered by [...]

Flame Synthesis and Coating of Nanostructured Particles in One Step

Teleki A., Buesser B., Heine M., Krumeich F., Akhtar M.K., Pratsinis S.E., ETH Zürich, CH

Coating of flame-made nanostructured particles has been achieved in one step by a scalable aerosol process. Rutile TiO2 particles made by flame spray pyrolysis (FSP) were coated in a single step with SiO2 layers in [...]

Design, Fabrication & Testing of a Ceramic Microreactor for Nanoparticle Synthesis

Jain K., Wu C., Atre S., Kimura S., Jovanovic G., Sprenkle V., Canfield N., Narayanan V., Roy S., Oregon Nanoscience & Microtechnologies Institute, US

Nanoscale ceramic powders offer attractive prospects as building blocks for various high performance applications due to their excellent mechanical, thermal, dielectric and corrosion properties. Despite the availability of a plethora of nanoparticle synthesis processes the [...]