First Clinical Hospital, Jilin University, Changchun, PR China.
J Colloid Interface Sci. 2011 Apr 1;356(1):54-7. doi: 10.1016/j.jcis.2010.11.079. Epub 2010 Nov 30.
WO(3) nanofibers were synthesized using an electrospinning method and characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The obtained WO(3) nanofibers were used as sensitive materials for the detection of NH(3). Indirect-heating sensors based on WO(3) nanofibers were prepared. When the WO(3) nanofiber-based sensors were exposed to 100 ppm NH(3) at 500°C, the response is 5.5, and the response and recovery times are 1 and 5s, respectively. These results indicate that the gas sensors based on WO(3) nanofibers express high and fast response and recovery characteristics to NH(3), and the WO(3) nanofibers are promising sensitive materials for NH(3) detecting.
WO(3)纳米纤维采用静电纺丝法合成，并通过 X 射线粉末衍射（XRD）和扫描电子显微镜（SEM）进行了表征。所得到的 WO(3)纳米纤维被用作检测 NH(3)的敏感材料。基于 WO(3)纳米纤维的间接加热传感器已经制备。当 WO(3)纳米纤维基传感器在 500°C 下暴露于 100ppm NH(3)时，其响应值为 5.5，响应和恢复时间分别为 1 和 5s。这些结果表明，基于 WO(3)纳米纤维的气体传感器对 NH(3)表现出高且快速的响应和恢复特性，并且 WO(3)纳米纤维是用于检测 NH(3)的很有前途的敏感材料。
