Synthesis of TiO{sub 2} core/RuO{sub 2} shell particles using multistep ultrasonic spray pyrolysis
- IME – Process Metallurgy and Metal Recycling, RWTH Aachen University, Intzestr. 3, D-52056 Aachen (Germany)
- IPC – Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, D-52074 Aachen (Germany)
- GFE – Central Facility for Electron Microscopy, RWTH Aachen University, Ahornstr. 55, D-52074 Aachen (Germany)
Graphical abstract: - Highlights: • TiO{sub 2} core/RuO{sub 2} shell submicron-particles were prepared via a sequential spray pyrolysis. • Spherical particles have the mean particle diameters between 200 and 400 nm. • This method is promising for synthesis of core–shell and core–multishell materials. - Abstract: Spherical submicron-particles with TiO{sub 2} core–RuO{sub 2} shell structure have been synthesized by employing sequential ultrasonic spray pyrolysis. The particles have been investigated by X-ray powder diffraction, scanning electron microscopy and different transmission electron microscopy techniques. The quality of the core–shell structure of the particles has been confirmed by comparison of the experimental data with those generated on the basis of a hard sphere core–shell model. It has been found that the mixing of the Ru-containing aerosol with the TiO{sub 2} particle stream has a significant impact on the core–shell formation. The method introduced in this study can probably be applied for preparation of core–shell and core–multishell materials that are difficult to synthesize in a single step spray pyrolysis process.
- OSTI ID:
- 22341808
- Journal Information:
- Materials Research Bulletin, Vol. 48, Issue 9; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoelectrochemical and photocatalytic activities of bilayered TiO{sub 2}/Ga:WO{sub 3} photoelectrode by spray pyrolysis technique
Synthesis, performance evaluation, and economic assessment of tailored Pt/TiO 2 catalysts for selective biomass vapour upgrading via a scalable flame spray pyrolysis route