Methanol Sensing Properties of Electrospun SnO2 -ZnO Nanofibers
Pure ZnO and SnO2-ZnO nanofibers were synthesized by electrospinning method and characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The structure and methanol sensing properties of these fibers were investigated. The results indicate that the 20 wt% SnO2-ZnO sensor exhibits considerable sensitivity, rapid response, and good selectivity against methanol at 200 °C due to the special 1D fibers properties and the promoting effect of SnO2/ZnO heterojunction structure. The methanol sensing mechanism of SnO2 -ZnO nanofibers were also discussed.
Hexing Li, Qunjie Xu and Daquan Zhang
S. H. Wei et al., "Methanol Sensing Properties of Electrospun SnO2 -ZnO Nanofibers", Advanced Materials Research, Vols. 356-360, pp. 565-568, 2012