Electrospinning route for α-Fe2O3 ceramic nanofibers and their gas sensing properties

被引：106

作者：

Zheng, Wei ^{[1
]}

Li, Zhenyu ^{[1
]}

Zhang, Hongnan ^{[1
]}

Wang, Wei ^{[1
]}

Wang, Yu ^{[1
]}

Wang, Ce ^{[1
]}

机构：

[1] Jilin Univ, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 06期

关键词：

Nanostructure; Oxides; Semiconductors; Sol-gel chemistry; CATALYSIS; SELECTIVITY; SENSORS;

D O I：

10.1016/j.materresbull.2008.12.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, alpha-Fe2O3 ceramic nanofibers were prepared by electrospinning poly(vinyl alcohol)/Fe (NO3)(3)center dot 9H(2)O composite nanofibers and followed by calcination. The morphologies and structures of the as-prepared samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The gas sensing properties of the sensor based on the as-prepared alpha-Fe2O3 nanofibers were investigated in detail. The experimental results exhibited that Our product held rapid response-recovery and high sensitivity characteristics to ethanol vapor. The response and recovery time of the sensor to C2H5OH vapor (from 100 to 5000 ppm) are about 3 and 5 s, respectively. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

引用

页码：1432 / 1436

页数：5

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