A Rapidly Responding Sensor for Methanol Based on Electrospun In2O3–SnO2 Nanofibers


  • D. Abdelkader—contributing editor

  • This work has been supported in part by the National 863 Project (No. 2007AA03Z324), National 973 Project (No. 2007CB936203), and NSFC grants (No. 20674027 and 50873045).

†Author to whom correspondence should be addressed. e-mail: cwang@jlu.edu.cn


In this paper, we presented a simple and effective electrospinning technique for the preparation of In2O3–SnO2 composite nanofibers. The morphology and chemical structure of the as-prepared samples were analyzed by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The results showed that large quantities of In2O3–SnO2 composite nanofibers with diameters from 60 to 100 nm were obtained. The In2O3–SnO2 composite nanofibers exhibited excellent gas sensing properties to methanol, such as fast response/recovery properties, high sensitivity, and good selectivity.