Aluminum fluoride (AlF₃) is a typical catalyst for dehydrofluorination of hydrofluorocarbons (HFCs) to fluoroolefins with high heat of reaction. Consequently, heat supply and sintering are the key challenges for AlF₃-based catalysts. Herein, SiC with high thermal conductivity and resistance to HF corrosion is suggested as a candidate support of AlF₃ catalyst. The interaction between AlF₃ and SiC leads to uniform distribution of the catalytic phase, and as a result of this, AlF₃/SiC exhibits high catalytic activity and stability for the dehydrofluorination of 1,1-difluoroethane to vinyl fluoride. This study proposes a novel catalyst support (SiC) for strong endothermic catalytic reactions involving HFCs for the first time to the best of our knowledge.

氟化铝（AlF ₃）是用于在高反应热下将氢氟烃（HFC）脱氟化氢为氟代烯烃的典型催化剂。因此，供热和烧结是基于AlF ₃的催化剂的关键挑战。在此，建议将具有高导热率和耐HF腐蚀的SiC作为AlF ₃催化剂的候选载体。AlF ₃和SiC之间的相互作用导致催化相的均匀分布，因此，AlF ₃/ SiC对1,1-二氟乙烷脱氟化氢为氟乙烯显示出高催化活性和稳定性。这项研究首次据我们所知提出了一种新颖的催化剂载体（SiC），用于涉及HFC的强吸热催化反应。