The synthesis of nanostructured tin dioxide (SnO2) is an important process for various industrial applications, such as microelectronics, the manufacture of optoelectronic devices, solar cells, catalysts and gas sensors. However, existing synthesis methods have limitations, such as difficulty in controlling parameters, high energy costs, process complexity and the generation of hazardous waste.
The invention presents a new reactor for the synthesis of nanostructured SnO2 that overcomes these limitations. The reactor consists of a tubular section surrounded by small holes through which a gas flows. The collision between the water vapor flowing through the holes and the gas molecules (preferably tin tetrachloride) entering the tube favors the kinetics of the reaction and the yield, making it possible to carry out the process at relatively low temperatures compared to other synthesis methods. In addition, the reactor is easy to operate and maintain, reduces energy consumption and does not generate hazardous waste.
The reactor consists of a tubular section surrounded by small holes through which a gas flow passes. Water vapor, which is one of the reactants in the reaction, is distributed evenly through these holes. When the reactant gas enters the reactor, it collides perpendicularly with the water vapor. This collision promotes a more energetic interaction between the reactants, which speeds up the reaction and improves the conversion of tin tetrachloride into tin dioxide.
Patent title:
Reactor for synthesizing nanoparticles and process for producing tin dioxide nanoparticles
Deposit Number:
BR 11 2014 026902 5
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