Experimental characterization of the Double Flame Spray Pyrolysis Process based on the deposition of Pt on a TiO2 support

Flame Spray Pyrolysis (FSP) is a well investigated high temperature aerosol technique for synthesizing nano-sized metal oxide catalysts of almost all metals and transition metals by gas-to-particle conversion (Teoh et al. 2010). However, specific designs of multi-component catalysts and the controlled dispersion of catalytic material on the support are limited with this approach. Double Flame Spray Pyrolysis (DFSP) offers the potential to overcome this limitation by burning individual metal oxide precursors in two opposing nozzles and intersecting the flames at a defined temperature (Minnermann et al. 2013). Additionally properties such as particle size, shape, and specific surface area can be tuned for each compound individually by adjusting the flames separately.