Fractional determination of metallic copper, cuprous oxide and cupric oxide in copper oxide catalyst

Abstract

Metallic copper, cuprous oxide and cupric oxide in a copper oxide catalyst were determined by combination of wet chemical method and XRD. The ratio of the copper metal to the copper oxide was obtained after treatment of the sample with HCl, where the oxides were dissolved with HCl. The ratio of the cuprous oxide to the cupric oxides was obtained by XRD. The ratio of the three components calculated with the above ratios well agreed with the results obtained by the reaction of this catalyst with hydrogen gas.