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

In this paper, α-Fe2O3 ceramic nanofibers were prepared by electrospinning poly(vinyl alcohol)/Fe (NO3)3·9H2O 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 α-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.

The original research paper can be seen here.


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