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Synthesis of AlF3 as a catalyst of Heck reaction
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1  Department of Chemistry, Iran University of Science and Technology


Aluminum fluoride has been widely used in industrial fields, for example it can be used as a catalyst for the synthesis of fluorocarbons and is used as a catalyst or co-catalyst in fluorination. In recent years, the use of this material in the technology of rechargeable lithium-ion batteries is of great importance. It is produced in white crystalline powder. Aluminum fluoride contains various phases such as α, β, η, κ, θ. All of these crystalline phases contain octahedral [AlF6] units that form three-dimensional networks, but with different links in composition. The thermodynamic phase is stable α-AlF3 and the other phases are metastable. Our goal is to produce aluminum fluoride using a fast and HF-free method. In this paper, the synthesis of AlF3 by the incineration method was investigated. Aluminum nanoparticles powder was obtained by the ball-mill method of aluminum scraps and by mixing with polytetrafluoroethylene and burning their composition, AlF3 crystals were created in the carbon. The X-ray diffraction pattern as well as the IR spectrum analysis confirmed this claim. It is expected that we will be able to use this material as a catalyst in organic reactions such as the Heck reaction and improve its performance using cocatalysts.

Keywords: AlF3, Aluminum fluoride, Heck reaction, Ball-mill method