CATALYST CONSISTING OF A SOLID SUPPORT, AN OXIDE AND A METAL ACTIVE PHASE WHICH IS GRAFTED ON THE OXIDE, A METHOD FOR THE PREPARATION AND THE USE THEREOF

摘要

A catalyst assembly for catalysing chemical reactions in a gas phase consists of a solid support, whose surface (S) is provided with an anchorage oxide (O) which is chemically different therefrom and is fixed thereto, wherein said anchorage oxide covers a non-zero area percentage of said solid support (S) surface and of a metal phase (M) catalytically active for the considered chemical reaction, is characterised in that said catalytically active metal phase (M) is anchored to said solid support (S) by means of the anchorage oxide (O) which is also grafted on the solid support (S).