水热法合成α-Fe2 O3纳米微粒及气敏性能研究  

Gas sensing properties of α-Fe_2O_3 nanoparticles prepared by hydrothermal method

作　　者：王彩红[1] 王芳[1] 党艳秋[1] 胡相明[1] 

机构地区：[1]滨州学院化学工程系,滨州市材料化学重点实验室,山东滨州256603

出　　处：《应用化工》2015年第4期633-635,共3页Applied Chemical Industry

基　　金：国家自然科学基金(51304027);滨州学院青年人才创新工程项目(ZXYQNLG200912);滨州学院服务滨州项目(BZXYFB20100403)

摘　　要：以Fe（NO3）3·9H2O、NaOH和CTAB为原料，用水热法合成了α-Fe2O3纳米粉体。用X射线粉末衍射（ XRD）和透射电子显微镜（ TEM）对粉体的物相、形貌进行了表征，并将粉体制成气敏元件，进行了气敏性能测试。结果表明，样品为形状规则的立方体颗粒，粒径为60～80 nm，元件对乙醇具有较高的灵敏度。Nanometer material α-Fe2 O3 was synthesized by hydrothermal method using Fe （ NO3 ） 3 ·9H2 O,NaOH and CTAB as raw materials.The structure,crystal phase and morphology of the powder were characterized by XRD and TEM .Gas sensor based on Fe 2 O3 powder was prepared and gas sensing proper-ties were investigated .The results showed that samples were regular cube particles and their grain sizes were about 60~80 nm.The gas senor exhibited good response to ethanol .

关 键 词：水热法 Α-FE2O3 气敏 

分 类 号：O614.8[理学—无机化学]