A crystalline delafossite of silver ferrite AgFeO₂ nanoparticles were successfully synthesized by modified method. Physical characterizations of the AgFeO₂ catalyst were obtained by several techniques including X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray Fluorescence (XRF), and nitrogen physisorption measurements. The material was applied as active heterogeneous catalyst for decarboxylative fluorination of carboxylic acids. The optimized conditions utilized the electrophilic Selectfluor reagent in acetone/H₂O solvent at room temperature in 3 h. Investigation of structure/activity relationship revealed strong synergistic effect of iron on silver center. Subsequently, AgFeO₂ showed remarkable higher activity than homogeneous silver salts, other metal oxides and common Ag-based heterogeneous catalysts. Leaching test indicated the exceptional stability of AgFeO₂ structure as compared to other heterogeneous systems and the contribution of leached species is unlikely. Subsequently, AgFeO₂ could be reused for at least 7 runs without significant degradation in activity.

改进的方法成功地合成了铁酸银AgFeO ₂纳米颗粒的结晶铜铁矿。AgFeO ₂催化剂的物理表征是通过几种技术获得的，包括X射线粉末衍射（XRD），扫描电子显微镜（SEM），透射电子显微镜（TEM），热重分析（TGA），X射线荧光（XRF），和氮的物理吸附测量。该材料用作用于羧酸的脱羧氟化的活性非均相催化剂。优化条件利用了丙酮/ H _2中的亲电Selectfluor试剂o在室温下3小时内溶解。结构/活性关系的研究表明，铁对银中心​​具有很强的协同作用。随后，AgFeO ₂表现出比均相银盐，其他金属氧化物和常见的基于Ag的非均相催化剂更高的活性。浸出试验表明，与其他异质体系相比，AgFeO ₂结构具有出色的稳定性，并且浸出物质的贡献不大。随后，AgFeO ₂可以重复使用至少7次，而活性没有明显降低。