Synthesis flame spray

Sahm,T, Madler, L., Gurlo, A., Barsan, N., Pratsinis, S. E. and Weimar, U. (2004), Flame spray synthesis of tin dioxide nanoparticles for gas sensing . Sens. Actuators B, 98,148-53. 

T. Tani, N. Watanabe, K. Takatori Emulsion combustion and flame spray synthesis of zinc oxide/silica particles, Journal of Nanoparticle Research 5(1-2), 39 6 (2003). 

M. C. Heine, S. E. Pratsinis Droplet and particle dynamics during flame spray synthesis of nanoparticles. Industrial Engineering Chemical Research 44, 6222-6232 (2005). 

Rudin T, Wegner K, Pratsinis SE (2013) Towards carbon-free flame spray synthesis of homogeneous oxide nanoparticles from aqueous solutions. Adv Powder Technol 24 632-642... 

Baker C, Kim W, Sanghera J, Goswami R, Villalobos G, Sadowski B et al (2012) Flame spray synthesis of LU2O3 nanoparticles. Mater Lett 66 132-134... 

In the other case ]10], the reactor consisted of a 1 mm diameter quartz glass capillary with a 20 pm wall thickness. A 15 mm length of capillary was filled with 2.5wt.% rhodium on alumina powder obtained by flame spray synthesis and was inserted in a hot gas flow perpendicular to the capillary. With this setup, it was possible to evaluate the oxidation state of rhodium by applying a small X-ray beam. Different absorptions on rhodium species have been detected with a positive... 

Production of lONPs, ranging from iron oxide to inm and inm carbide, was carried out by systranatically modifying the degree of reduction during flame spray synthesis imder a controlled atmosphere... 

The two processes used to prepare nanostructures of bioactive glass are the sol-gel technique and the flame spray synthesis method. The processes are rather different, as one is performed in liquid phase at room temperature, and the other in gas phase at high temperature. An overview of both schemes, and their characteristics, is provided in the following sections. 

Cas-Phase Synthesis Method (Flame Spray Synthesis]... 

Figure 6.3 (a) Electron microscopy images of nanoparticulate bioactive glass (NBG) as prepared by flame spray synthesis. Upper Partial agglomeration of the nanoparticles Lower Primary nanoparticles with <50nm diameter (b) Schematic representation of the flame spray synthesis process [20]. 

In summary, the advantages of flame spray synthesis He in the ready accessibility of a wide range of nanoparticle compositions, as well as the facile introduction of dopants and the proven scalabiUty of the technique. However, the process is very energy-intensive when compared to wet synthesis methods, which are conducted at room temperature. 

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