A New Method to Form BaTiO3 Nanomaterials into Spherical Pellets to be Used in a Non-thermal Plasma Catalytic Application

Abstract

In this work, we present the opportunity to prepare perovskite materials in powder and in balls by solgel process. BaTiO 3 as spheres of 1-2 mm in diameter, presenting the same physico-chemical properties than powders, have been prepared by an oil-drop process. The shape forming of a dielectric material permits its use in a plasma reactor and promotes the efficiency of the system.

Spherical pellets of BaTiO3 and Ba0.67Sr0.33TiO3 perovskite-type compounds made by a sol–gel oil drop process for non-thermal plasma applications

“…After annealing at 800 • C, Fig. 1(b), a single cubic phase of BaTiO 3 was obtained only for the PR2 protocol, whereas for the PR1 method, it was necessary to anneal at a higher temperature in order to decompose the barium carbonate formed, as shown from thermal gravimetric analysis in previous results (Fournaud et al, 2008). These results show that the best way to prepare BaTiO 3 is through the use of the PR2 method.…”