Catalytic activity of Pd(II) and Cu(II) complexes anchored to natural and pre-modified bentonite in the oxidation of carbon monoxide

Chem. Met. Alloys 8 (2015) 32-38

https://doi.org/10.30970/cma8.0301

T.L. RAKITSKAYA, V.O. VASYLECHKO, T.A. KIOSE, G.V. GRYSHCHOUK, A.M. DZHIGA, V.Y. VOLKOVA

The influence of different methods of pre-modification (thermal, hydrothermal, and acid-thermal) of natural bentonite on the catalytic activity of bentonite-anchored palladium(II) and copper(II) complexes in low-temperature oxidation of carbon monoxide has been studied. The contributions of weakly and strongly bound Pd(II) and Cu(II) forms to the total activity of the catalysts were evaluated by two methods, desorption of the metal ions and a kinetic method.

Time dependence of the concentration of CO during the oxidation of carbon monoxide with oxygen over Pd(II)‑Cu(II) catalysts based on natural (curve 1) and pre-modified bentonite (curves 2-4).

Keywords

Desorption of palladium(II) and copper(II) / Natural and pre-modified bentonite / Catalysts for carbon monoxide oxidation