Ce掺杂In2O3纳米纤维的制备及其三乙胺气敏性能

doi:10.3866/PKU.WHXB20101126

Abstract

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

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 Phys. -Chim. Sin., 2010, 26(11): 3101-3105.

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Preparation and Triethylamine Sensing Properties of Ce-Doped In₂O₃ Nanofibers

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Preparation and Triethylamine Sensing Properties of Ce-Doped In₂O₃ Nanofibers