中文摘要：

利用水热法与无模板自组装法相结合,以三氯化铁为氧化剂、掺杂剂和反应物,制备了聚苯胺及其铁氧化物纳米复合材料.结果表明,通过改变三氯化铁的浓度可以调控产物的微观结构和组成.当三氯化铁的浓度≤0.13 mol/L时,产物组成为未掺杂的低聚苯胺与α-Fe2O3的复合纳米材料,其微观结构为纳米颗粒组装成的椭球体和准立方体;当三氯化铁的浓度≥0.20 mol/L时,产物组成为掺杂态聚苯胺,其微观结构为纳米片层结构组装成的微米级大丽花球;并且产物的粒径随三氯化铁浓度的增大而增大.利用扫描电子显微镜、红外光谱、紫外-可见光谱、X光电子能谱及X射线衍射等手段对产物的微观结构和组成进行了表征,并探讨了产物的形成机理.

英文摘要：

Polyaniline nanomaterials and its iron oxide nanocomposites were fabricated by combining hydro thermal synthesis and templatefree polymerization method. The morphology and composition of assynthesized composites can be controlled by changing the concentration of ferric chloride, which act as oxidant, dopant and reactant at the same time in process of polymerization. When the concentration of ferric chloride is lower than 0.13 mol/L, the composition of the product are eigenstates polyaniline and aFe203 nanocomposites, the morphology of the product are submicroscale quasicube selfassembled by nanoparticles; If the concentration of ferric chloride increased to 0.20 mol/L, the composition of the product changed material, the morphology of the assynthesized changed to dahlialike microsphere to doped polyaniline nano selfassembled by nanola mellar structure. And the diameter of products increases with the increase of ferric chloride. By means of SEM, FTIR, UVVis, XPS and XRD, microstructure and composition of the products were characterized, and formation mechanism are also addressed.