Benzidine and diphenylamine radical formation on the surface of NaY-zeolite and γ-alumina with and without V2O5

Solutions of benzidine and diphenylamine in benzene produce cation radicals on the surface of zeolite, γ-alumina and V2O5 doped alumina and zeolite. The sequence of the electron acceptor site strength on the surface is as follows: Open image in new window