导电聚苯胺与磁性γ-Fe_2O_3纳米复合物的电磁性能  

Electrical-magnetic Properties of Nanocomposites of Conducting Polyaniline and γ-Fe_2O_3 Nanoparticles

作　　者：杨青林[1] 翟锦[1] 宋延林[1] 万梅香[1] 江雷[1] 徐文国[2] 李前树[2] 

机构地区：[1]中国科学院化学研究所分子科学中心,北京100080 [2]北京理工大学化工与材料学院,北京100081

出　　处：《高等学校化学学报》2003年第12期2290-2292,共3页Chemical Journal of Chinese Universities

基　　金：国家重点基础研究项目 (批准号 :G19990 64 5 0 4) ;国家自然科学基金 (批准号 :2 963 40 2 0 -2 ;2 99740 3 7);中国科学院创新工程基金 (批准号 :CMS-CX2 0 0 1)资助

摘　　要：Nanocomposites of PAn-DBSA/γ-Fe 2O 3 with electrical and ferromagnetic behavior(σ= 2.18×10 -3-5.00×10 -5 S/cm, M s=3.7-16.6 m 2·A/kg, H c=8 805.2-9 133.1 A/m) were prepared by a chemical modification-redoping method in a neutral medium. The products were characterized by TEM, XRD, UV-Vis, four-probe method, and magnetometer. The results indicate that the electrical and magnetic properties of the nanocomposites strongly depend on γ-Fe 2O 3 content. With the increase of γ-Fe 2O 3 content, the electrical conductivity is decreased and saturation magnetization is increased.Nanocomposites of PAn-DBSA/γ-Fe 2O 3 with electrical and ferromagnetic behavior(σ= 2.18×10 -3-5.00×10 -5 S/cm, M s=3.7-16.6 m 2·A/kg, H c=8 805.2-9 133.1 A/m) were prepared by a chemical modification-redoping method in a neutral medium. The products were characterized by TEM, XRD, UV-Vis, four-probe method, and magnetometer. The results indicate that the electrical and magnetic properties of the nanocomposites strongly depend on γ-Fe 2O 3 content. With the increase of γ-Fe 2O 3 content, the electrical conductivity is decreased and saturation magnetization is increased.

关 键 词：导电聚苯胺 Γ-FE2O3 纳米复合物 电磁性能 三氧化二铁 纳米材料 

分 类 号：TB383[一般工业技术—材料科学与工程]