Author/Authors :
Juan Liu، نويسنده , , Wenbin Guo، نويسنده , , Fengdong Qu، نويسنده , , Caihui Feng، نويسنده , , Chao Li، نويسنده , , Linghui Zhu، نويسنده , , Jingran Zhou، نويسنده , , Shengping Ruan، نويسنده , , Weiyou Chen، نويسنده ,
Abstract :
Pristine and vanadium-doped In2O3 nanofibers were fabricated by electrospinning and their sensing properties to H2S gas were studied. X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to investigate the inner structure and the surface morphology. The H2S-sensing performances were characterized at different temperatures ranging from 50 to 170 °C. The sensor based on 6 mol% V-doped In2O3 nanofibers exhibit the highest response, i.e. 13.9–50 ppm H2S at the relatively low temperature of 90 °C. In addition, the fast response (15 s) and recovery (18 s) time, and good selectivity were observed.
Keywords :
nanofibers , electrospinning , V-doped In2O3 , E. Sensor , H2S
