基于静电纺丝法制备Ce掺杂WO_(3)的NO_(2)气体传感器研究  

Study of NO_(2)Gas Sensor Based on Ce-doped WO_(3)Prepared by Electrostatic Spinning Method

作　　者：王秀玲 罗志鑫 崔家文 岳静文 许爽 杨亚宁 WANG Xiuling;LUO Zhixin;CUI Jiawen;YUE Jingwen;XU Shuang;YANG Yaning(School of Information and Communication Engineering,Dalian Minzu University,Dalian Liaoning 116605,China)

机构地区：[1]大连民族大学信息与通信工程学院,辽宁大连116605

出　　处：《大连民族大学学报》2024年第5期412-417,共6页Journal of Dalian Minzu University

基　　金：大连民族大学研究生教育教学改革资助项目(2023)。

摘　　要：为了提高WO_(3)对NO_(2)的气敏性能,利用静电纺丝技术制备了Ce掺杂的WO_(3)纳米纤维,制备了WO_(3)和不同掺杂比例的Ce-WO_(3)气体传感器进行气敏实验。实验结果表明:Ce元素的掺入明显提高WO_(3)对NO_(2)的传感性能,而且降低工作温度到100℃,当NO_(2)的浓度为5 ppm时,2mol%Ce-WO_(3)传感器响应值为22.16。通过XRD、SEM、XPS等表征方法对其结构、形貌以及表面化学态进行了表征,利用UV-vis对其带隙进行了表征和分析。结果表明:2mol%Ce-WO_(3)传感器对NO_(2)性能的提升主要得益于表面吸附氧含量的增加以及Ce掺杂之后对带隙的减小。To improve the gas-sensing performance of WO_(3)for NO_(2),Ce-doped WO_(3)nanofibers were prepared by electrostatic spinning technique,and WO_(3)and Ce-WO_(3)gas sensors with different doping ratios were prepared for gas-sensing experiments.The experimental results showed that the doping of Ce elements significantly improved the sensing performance of WO_(3)for NO_(2).When the operating temperature was reduced to 100℃,the response value of the 2 mol%Ce-WO_(3)sensor was 22.16 with the concentration of NO_(2)of 5 ppm.The structure,morphology,and surface chemical states were characterized by XRD,SEM,and XPS,and the bandgap was characterized and analyzed using UV-vis.The analysis showed that the enhancement of the NO_(2)performance of the 2 mol%Ce-WO_(3)sensor was mainly due to the increase of the adsorbed oxygen content on the surface and the reduction of the bandgap after Ce doping.

关 键 词：气体传感器 静电纺丝 NO_(2)检测 Ce掺杂WO_(3) 

分 类 号：TP212.2[自动化与计算机技术—检测技术与自动化装置]