高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (6): 942-946.doi: 10.7503/cjcu20160892

• 中国第四届静电纺丝大会专题研究论文 • 上一篇    下一篇

铜掺杂氧化锌纳米纤维宽线性响应乙醇气体传感器

许金宝1, 王威2(), 王策3()   

  1. 1. 吉林工业职业技术学院机电系, 吉林 132013
    2. 哈尔滨工业大学市政环境工程学院, 城市水资源水环境国家重点实验室, 哈尔滨 150090
    3. 吉林大学化学学院, 麦克德尔米德实验室, 长春 130012
  • 收稿日期:2016-12-12 出版日期:2017-06-10 发布日期:2017-04-13
  • 作者简介:联系人简介: 王 威, 男, 博士, 教授, 博士生导师, 主要从事环境处理与检测研究. E-mail: psweiwang@aliyun.com;王 策, 女, 博士, 教授, 博士生导师, 主要从事纳米纤维开发及应用研究. E-mail: cwang@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21304024)资助.

Cu Doped ZnO Electrospun Nanofibers for Ethanol Detector with Broad Linear Response

XU Jinbao1, WANG Wei2,*(), WANG Ce3,*()   

  1. 1. Electromechanical Department, Jilin Vocational College of Industry and Technology, Jilin 132013, China
    2. State Key Laboratory of Urban Water Resources and Environments(SKLUWRE),Harbin Institute of Technology, Harbin 150090, China
    3. Alan G MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2016-12-12 Online:2017-06-10 Published:2017-04-13
  • Contact: WANG Wei,WANG Ce E-mail:psweiwang@aliyun.com;cwang@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No. 21304024).

摘要:

采用电纺丝技术结合高温煅烧制备了铜掺杂氧化锌复合纳米纤维, 并通过XRD, XPS, SEM和TEM等手段对材料进行表征. 将所得材料作为敏感层构筑了气体传感器, 器件对乙醇蒸气具有很好的传感特性, 特别是当Cu/Zn摩尔比为1∶60时, 由于Cu组分的活化作用, 所得传感器不仅具有高灵敏度、 快速响应恢复(2 s/7 s)特性及优良的稳定性, 而且在5~104 μg/g超大乙醇蒸气浓度范围内都能保持良好的线性关系(R2=0.99), 这不仅有利于乙醇实际检测, 而且对宽响应范围及高灵敏传感器的发展具有重要意义.

关键词: 电纺丝, 纳米纤维, 气体传感, 线性响应

Abstract:

Saturation phenomena of sensing signal often appear when target molecular was still at a low concentration, which threatens the gas detection. Herein, Cu doped ZnO composite nanofibers were prepared via electrospinning combined with subsequent calcination, and then were characterized by XRD, XPS, SEM, TEM, and so on. The sensors based on Cu doped ZnO composite nanofibers exhibited excellent sensing performance towards ethanol vapor, when the molar ratio of Cu to Zn was 1∶60. Activated by the Cu dopant, the composite nanofibers presented high responsivity, long-term stability, rapid response and recovery(2 s/7 s). Notably, the linear range of the sensor for detecting ethanol was 5—104 μg/g, which was much wider than former reports and would be helpful for gas detecting in practical applications.

Key words: Electrospinning, Nanofibers, Gas sensor, Linear response

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