静电纺丝法制备In_2O_3纳米纤维及其气敏特性的研究  

Preparation and Gas Sensitivity Studies of In_2O_3 Nanofibers by Electrospinning

作　　者：廖家发 孙炎辉[2,3] 杜海英[2,4] 王兢[2] 吴云峰 

机构地区：[1]大连民族大学物理与材料工程学院,辽宁大连116600 [2]大连理工大学电子科学与技术学院,辽宁大连116024 [3]大连民族大学信息与通信工程学院,辽宁大连116600 [4]大连民族大学机电工程学院,辽宁大连116600

出　　处：《仪表技术与传感器》2016年第6期1-3,10,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(61176068;61508081);辽宁省自然科学基金项目(2015020096);大连民族学院自主科研基金项目(DC201502010302)

摘　　要：采用静电纺丝法制备了多级中空结构的In_2O_3纳米纤维,材料的结构、形貌分别通过XRD、SEM等表征手段进行了表征,制成了In_2O_3旁热式气敏元件。采用静态气体测试系统对In_2O_3元件进行了气敏测试。在工作温度350℃时,对0.5 ppm^50 ppm甲醛进行了气敏测试,测试结果表明:静电纺丝制备的In_2O_3气敏元件对甲醛气体具有优异的响应灵敏度,快速的响应、恢复时间和较好的选择性。Hierarchical hollow In2O3-nanofibers was synthesized by electro spinning.The morphology and structure surface of In2O3-nanofibers were characterized by using X-ray diffraction （XRD） ,field emission scanning electron microscope （SEM）.A side heat type gas sensor was fabricated based on In2O3.At operating temperature of 350 ℃, Gas sensing properties of In2O3 nanofibers gas sensor were measured by static gas test system in formaldehyde concentration range of 0.5 ppm - 50 ppm.The In2O3 sensor ex- hibited good formaldehyde sensing properties,low operating temperature, quick response and response recover time and well cross responses.

关 键 词：纳米纤维 静电纺丝 气敏元件 甲醛 气敏特性 

分 类 号：TN305[电子电信—物理电子学]