Investigation of the activating effect of metal chlorides (Al, Zn, Ti, Fe) in the reactions of surface functional groups of amorphous silicon dioxide

The paper shows that modification of amorphous silica with zinc, aluminum, iron chloride encourages an increase in the number of active sites on the surface of amorphous silica. The physical chemical and quantum chemical studies showed the chemical interaction between metal chlorides, and oxygen and silicon (a part of amorphous filler) according to the donor-acceptor mechanism. (C) 2020 Elsevier Ltd. All rights reserved.