Preparation of CuCr_1-xFe_xO₂ Delafossite Solid Solution Powder Via a Self-Combustion Glycine Nitrate Process

Abstract

Porous CuCr_1-xFe_xO₂ (x = 0 – 1) solid solution powders were successfully prepared by glycine nitrate process without post-annealing treatment or ambient control. The structure of the powders was confirmed by X-ray diffraction. The morphology of the powders was observed by scanning electron microscopy. The morphology varied from cotton candy-like to coral-like with increases in iron (x) content. The specific surface area of self-combusted CuCr_1-xFe_xO₂ (x = 0 – 1) powders varied from 25.723 m²/g to 4.94 m²/g with increases in iron (x) content, which is greater than the specific surface area of powders prepared by solid state reaction.

• Keywords CuCr_1-xFe_xO₂
• glycine nitrate process