Fe_2O_3-rGO/MoS_2复合材料的制备及其电化学特性  

Fabrication of a Fe_2O_3-rGO/MoS_2 Composite Material and Its Electrochemical Properties

作　　者：张俊[1] 王泽鹏[1] 王秀[1] 张萌[1] 刘杰[1] 连崑[1] 胡杰[1] 

机构地区：[1]太原理工大学信息工程学院微纳系统研究中心,太原030024

出　　处：《微纳电子技术》2017年第7期444-450,共7页Micronanoelectronic Technology

基　　金：国家自然科学基金资助项目(51205274);山西省人才专项(201605D211036);山西省自然基金面上项目(2016011039);山西省高等学校科技创新项目(2016137)

摘　　要：采用水热法合成氧化铁-石墨烯/二硫化钼(Fe_2O_3-rGO/MoS_2)复合材料。使用X射线衍射(XRD)和扫描电子显微镜(SEM)分别对复合材料的晶体结构和微观形貌进行分析和表征。测试结果表明Fe_2O_3均匀掺杂在rGO/MoS_2复合材料中。同时,利用循环伏安法和安培滴定法对制备的Fe_2O_3-rGO/MoS_2电化学传感器的电化学性能进行测试。实验结果表明:制备的Fe_2O_3-rGO/MoS_2电化学传感器,在对亚硝酸盐检测时,其灵敏度可达0.378μA·μM^-1·cm^(-2)(1 M=1 mol/L),检出限为0.2μmol/L(信噪比为3)且具有较宽的检测范围(1.0~9 830μmol/L)和较强的抗干扰性。The ferric oxide-reduced graphene oxide/molybdenum sulfide（Fe2O3-rGO/MoS2）composite material was synthesized using the hydrothermal method.By the X-ray diffraction（XRD）and scanning electron microscope（SEM）,the crystal structure and micromorphology of the as-prepared composite material were analyzed and characterized.The test results show that the Fe2O3 nanoparticles are doped uniformly in the rGO/MoS2 composite material.Meanwhile,with the cyclic voltammetry and amperometry,the electrochemical properties of the as-prepared Fe2O3-rGO/MoS2 electrochemical sensor were measured.The experimental results show that during the detection of the nitrite,the as-prepared Fe2O3-rGO/MoS2 electrochemical sensor shows a high sensitivity of 0.378μA·μM-1·cm-2（1 M=1 mol/L）,a low detection limit of0.2μmol/L（signal-noise ratio is 3）,a large detection range（1.0-9 830μmol/L）and good anti-interference ability.

关 键 词：石墨烯 二硫化钼 氧化铁 亚硝酸盐 电化学传感器 

分 类 号：O646[理学—物理化学]