CATALYTIC DECOMPOSITION OF H2O2 AS A TEST REACTION FOR CO(NI)MO(W) AL2O3 CATALYSTS/

Catalytic decomposition of hydrogen peroxide depends on an exchange of electrons with a catalyst, which in tum, is related to an oxidation s tate of catalytically active components. It was experimentally proved that oxide samples have higher activity than reduced and sulphided one s, which led us to the conclusion that in this reaction Me6+ ions, (Me = Mo or W), which are able to abstract an electron from donor molecul e, play a major role. These ions may be regarded as electron acceptor centres. It should be emphasized that Al3+ ions characterized by incom plete coordination, and H+ ions as acid centres, as well as O2- ions a nd OH-groups as basis centres cannot act as active sites in this react ion, because the support exhibited only trace activity.