摘要
将磁性物种与镁铝水滑石进行复合 ,利用共沉淀法合成出粒径为 2 0～ 5 0 nm磁性纳米镁铝水滑石。样品的 XRD及热分析结果表明 ,镁铝水滑石掺入磁性物种后并没有改变其层状结构和 2个阶段质量损失的典型特征。样品的磁学性能测试结果表明 ,样品的比饱和磁化强度随磁性物种含量的增加而线性递增 ,这为层状材料与磁性物种进行复合制备新型功能材料提供了实验依据。
The magnetic compounds were prepared from Mg Al hydrotalcites by the method of co precipitation , and the magnetic Mg Al hydrotalcite particles sized in 20~50 nm were synthesized to give assembled layered magnetic materials. The influences of Mg/Fe(Ⅱ) molar ratio on the structure of hydrotalcites and its magnetic property were investigated by XRD, TEM, vibrating sample magnetometer(VSM), TG DTA and FT IR. The results showed that the addition of magnetic substrates didn't change the typical characters of layered structure and mass loss on heating. And the specific saturation magnetization of products increased linearly with the content of magnetic particles.
出处
《应用化学》
CAS
CSCD
北大核心
2002年第8期734-737,共4页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金 (2 0 0 760 0 3)
中石化总公司 (X50 0 0 0 68)
教育部可控化学反应科学与技术基础重点实验室资助项目
