物理化学学报 >> 2010, Vol. 26 >> Issue (11): 3101-3105.doi: 10.3866/PKU.WHXB20101126

材料物理化学 上一篇    下一篇

Ce掺杂In2O3纳米纤维的制备及其三乙胺气敏性能

王金兴1,2, 于连香1, 王浩铭3, 阮圣平3, 李佳静1, 吴凤清1   

  1. 1. 吉林大学化学学院,长春130012;
    2. 长春汽车材料研究所,长春130011;
    3. 吉林大学电子科学与工程学院, 长春130021
  • 收稿日期:2010-05-11 修回日期:2010-07-21 发布日期:2010-10-29
  • 通讯作者: 吴凤清 E-mail:fqwu@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(60374048, 60977031),吉林省科技基金(20060928, 20080330)和吉林大学种子基金(2006-2008),国家高技术研究发展计划项 目(863)(2009AA032402)和教育部博士点基金(20090061110040)资助

Preparation and Triethylamine Sensing Properties of Ce-Doped In2O3 Nanofibers

WANG Jin-Xing1,2, YU Lian-Xiang1, WANG Hao-Ming3, RUAN Sheng-Ping3, LI Jia-Jing1, WU Feng-Qing1   

  1. 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. Changchun Institute of Automobile Materials, Changchun 130011, P. R. China;
    3. College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China
  • Received:2010-05-11 Revised:2010-07-21 Published:2010-10-29
  • Contact: WU Feng-Qing E-mail:fqwu@jlu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (60374048, 60977031), Jilin Provincial Science and Technology Department (20060928, 20080330) and Seed Foundations of Jilin University, China (2006-2008), National High-Tech Research and Development Programof China (863) (2009AA032402), and Doctoral Found of Ministry of Education of China (20090061110040).

摘要:

用简单有效的静电纺丝法制备了Ce掺杂的In2O3纳米纤维材料.采用X 射线衍射(XRD)、透射电子显微镜(TEM)、高分辨率透射电子显微镜(HRTEM)和扫描电子显微镜(SEM)对合成样品的晶体结构和形貌进行了表征.结果显示, 此纤维材料的平均直径约为90 nm, 长度达到几十个微米. 气敏性能测试结果表明, 4%(w)Ce 掺杂的In2O3纳米纤维对三乙胺的灵敏度最高, 该气敏元件对3 μL·L-1三乙胺的灵敏度达到2.6, 响应时间为5 s, 恢复时间约为6 s, 且具有较好的选择性.

 

关键词: 静电纺丝法, Ce 掺杂In2O3, 纳米纤维, 三乙胺, 气体传感器

Abstract:

Ce-doped In2O3 nanofibers were synthesized by a simple and effective electrospinning method. The morphology and crystal structure of the as-prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and scanning electron microscopy (SEM). The results revealed that the length of the nanofibers can reach several tens of micrometers and the average diameter was about 90 nm. The sensor fabricated from the 4% (w) Ce-doped In2O3 nanofibers showed the highest sensitivity to triethylamine. The sensitivity reached 2.6 when the sensor was exposed to 3 μL·L-1 triethylamine and the response time and recovery time were about 5 and 6 s, respectively. Moreover, good selectivity was also observed in our investigation.

 

Key words: Electrospinning method, Ce-doped In2O3, Nanofibers, Triethylamine, Gas sensor

MSC2000: 

  • O649