Reduction of silver cations in silver zeolites by carbon monoxide

Abstract

At room temperature silver oxide and silver carbonate react with CO much faster than do Ag-A zeolites, the kinetics of the latter reaction showing a pronounced dependence on water content and a significant dependence on the exchange conditions; no reaction takes place in the absence of water, and immersion of the stable dry Ag⁺–CO zeolite complex in an alkaline aqueous environment results in immediate reduction of Ag⁺.