Bi_2Fe_4O_9纳米粉体:水热法制备及表征(英文)  

Bi_2Fe_4O_9 Nanoparticles: Preparation by Hydrothermal Method and Characterization

作　　者：于志伟[1] 苗鸿雁[1] 谈国强[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,西安710021

出　　处：《无机化学学报》2008年第3期483-486,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.50672055)资助项目

摘　　要：Bi_2Fe_4O_9 nanoparticles were prepared at low temperature via a facile, one-step hydrothermal synthesis process using iron(Ⅱ) nitrate nonahydrate(Fe(NO_3)_3·9H_2O) and bismuth nitrate pentahydrate (Bi(NO_3)_3·5H_2O) as starting materials and sodium hydroxide (NaOH) as the precipitant and mineralizer. XRD results indicate that the as-prepared nanoparticles are pure Bi_2Fe_4O_9. SEM images reveal that the as-prepared Bi_2Fe_4O_9 nanoparticles have a sheet-like morphology. The Bi_2Fe_4O_9 nanoparticles thus obtained are paramagnetic at room temperature as shown by magnetic measurements.Bi2Fe4O9 nanoparticles were prepared at low temperature via a facile, one-step hydrothermal synthesis process using iron（Ⅱ） nitrate nonahydrate（Fe（NO3）3·9H2O） and bismuth nitrate pentahydrate （Bi（NO3）3·5H2O） as starting materials and sodium hydroxide （NaOH） as the precipitant and mineralizer. XRD results indicate that the as-prepared nanoparticles are pure Bi2Fe4O9. SEM images reveal that the as-prepared Bi2Fe4O9 nanoparticles have a sheet-like morphology. The Bi2Fe4O9 nanoparticles thus obtained are paramagnetic at room temperature as shown by magnetic measurements.

关 键 词：Bi2Fe4O9 纳米粉体 水热法 

分 类 号：O614.811[理学—无机化学] O614.532[理学—化学]