Synthesis and Characterization of the One-dimensional Cuprate Sr_2CuO_3 Nanoparticles Prepared by Modified Sol-gel Method

摘要

A modified sol-gel synthesis route has been used to prepare the fine homogeneous powder of Sr_2CuO_3 ceramic using strontium nitrate, copper nitrate, diethy-lene glycol monobutyl ether and citric acid. XRD patterns showed that the temperature of forming Sr_2CuO_3 is about 900℃ and single phase of Sr_2CuO_3 with high purity obtains at 950℃. Influence of concentration of citric acid on the structure of prepared materials was investigated by SEM images.