MGF2-NIF2 AS A SUPPORT FOR TRANSITION-METAL OXIDE CATALYSTS

A new type of a support for catalysts, i.e. MgF2-NiF2, was studied in this work. The IR spectroscopy, X-ray spectroscopy and catalytic tests were applied to characterize this system. On the surface of the suppo rt both the Lewis acid centres and the redox or basic centres were ide ntified. The introduction of a monolayer of an active component, i.e. MoO3, WO3, or V2O5 onto MgF2-NiF2 system of various per cent compositi on, caused a significant increase in the activity of these preparation s. The support containing 50% (mole) of NiF2 in the MgF2-NiF2 system w as found to have the most profitable influence on the catalytic proper ties of the studied preparations.