Influence of water content in the Pd(II)-Cu(II) catalyst fixed on acid-modified basalt tuff on its activity in the carbon monoxide oxidation by oxygen

Samples of natural and acid-modified basalt tuff and also of the Pd(II)-Cu(II)/N-BT catalyst were characterized by the methods of thermogravimetry and water vapor adsorption. It was shown that at the water contents in the samples of the catalyst from 1.6 up to 7.2 wt % their activity in the reaction of low-temperature CO oxidation by air oxygen decreases only by 2–4%.