Catalytic decomposition of hydrogen peroxide by Cu/M heterobimetallic complexes (M = Mn, Zn) with Schiff bases in the presence of electrolytes

A study was carried out on the effect of electrolytes KCl, CaCl2, MnCl2, ZnCl2, CuCl2, KNO3, Ca(NO3)2, Mn(NO3)2, Zn(NO3)2, and Cu(NO3)2 on the kinetics of the decomposition of H2O2 catalyzed by [Cu(L1/L2)][MCl4] complexes (M = Zn, Mn; L1 is 4,6,6-trimethyl-1,9-diamino-3,7-diaza-3-nonene, L2 is 1,15-dihydroxy-7,9,9-trimethyl-3,6,10,13-tetraaza-6-pentadecene). The chloride ions were found to reversibly inhibit the catalyst. The major kinetic characteristics of this reaction were obtained using a mathematical model taking account of the reversible and irreversible inhibition of the catalyst.