Synthesis and gas sensing application of porous CeO2-ZnO hollow fibers using cotton as biotemplates
Synthesis and gas sensing application of porous CeO2-ZnO hollow fibers using cotton as biotemplates
复制标题
DOI：
10.1016/j.matlet.2015.11.095
复制
发表时间：
2016-02-15
影响因子：
3
通讯作者：
Yang, Hengming
中科院分区：
文献类型：
--
作者：
Yan, Shaohui;Ma, Shuyi;Yang, Hengming
以棉花为生物模板制备了生物形态的纯ZnO和多孔CeO 2-ZnO中空纤维。采用X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和比表面积（BET）对样品进行了表征。XRD结果表明，CeO 2-ZnO样品结晶良好，为CeO 2和ZnO的混合相。与纯ZnO相比，CeO 2-ZnO传感器在260 ℃下对乙醇具有更好的响应，灵敏度高，选择性好，这主要是由于活性表面积和气体扩散的增加。(C)2015 Elsevier B. V.版权所有。
Biomorphic pure ZnO and porous CeO2-ZnO hollow fibers have been fabricated using cotton as biotemplates. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET). XRD results indicate that the CeO2-ZnO sample is well crystallized and shows a mixed phase of CeO2 and ZnO. Compared with pure ZnO, the CeO2-ZnO sensor exhibits much better response to ethanol with high sensitivity and good selectivity at 260 degrees C, which is mainly contributed to the increasing of active surface area and gas diffusion. (C) 2015 Elsevier B.V. All rights reserved.