Citation: WANG Jin-Xing, YU Lian-Xiang, WANG Hao-Ming, RUAN Sheng-Ping, LI Jia-Jing, WU Feng-Qing. Preparation and Triethylamine Sensing Properties of Ce-Doped In₂O₃ Nanofibers[J]. Acta Physico-Chimica Sinica, ;2010, 26(11): 3101-3105. doi: 10.3866/PKU.WHXB20101126 shu

Preparation and Triethylamine Sensing Properties of Ce-Doped In₂O₃ Nanofibers

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 Date: 11 May 2010
Available Online: 9 October 2010
Fund Project: 国家自然科学基金(60374048, 60977031) (60374048, 60977031)吉林省科技基金(20060928, 20080330) (20060928, 20080330)吉林大学种子基金(2006-2008) (2006-2008)国家高技术研究发展计划项目(863)(2009AA032402) (863)(2009AA032402)教育部博士点基金(20090061110040)资助 (20090061110040)

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, od selectivity was also observed in our investigation.
- Electrospinning method,
- Ce-doped In₂O₃,
- Nanofibers,
- Triethylamine,
- Gas sensor
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Preparation and Triethylamine Sensing Properties of Ce-Doped In₂O₃ Nanofibers