正交氧化钼传感器的制备和硫化氢气敏性能研究  

Preparation of orthogonal molybdenum oxide sensor and their hydrogen sulfide sensitivity

作　　者：伍小冬 顾雯雯[1] 彭姝迪 张先树 周渠[1] WU Xiaodong;GU Wenwen;PENG Shudi;ZHANG Xianshu;ZHOU Qu(College of Engineering and Technology,Southwestern University,Chongqing 400716,China;State Grid Chongqing Power Science Research Institute of Electric Power Company,Chongqing 401123,China)

机构地区：[1]西南大学工程技术学院,重庆400716 [2]国网重庆市电力公司电力科学研究院,重庆401123

出　　处：《电子元件与材料》2019年第8期67-71,共5页Electronic Components And Materials

摘　　要：利用水热法制备了α-MoO3纳米棒传感器材料,进而制备了α-MoO3纳米棒粉末的平面型气体传感器,并基于CGS-1TP智能气体检测分析系统研究了其对H2S气体的气敏特性.结果表明:制备的α-MoO3材料结构呈现棒状形态,平均长度和宽度分别约为300 nm和100 nm.制备的α-MoO3纳米棒传感器对体积分数为20×10^-6的H2S进行气体响应测试的最佳操作温度为180℃,对应的气体响应值为14.92,响应和恢复时间分别为7 s和11 s,同时对体积分数为10×10^-6~100×10^-6的H2 S表现出较高的线性度和优异的稳定性.Theα-MoO3 nanorod sensor material was prepared by hydrothermal method,and the planar gas sensor ofα-MoO3 nanorod powder was prepared.The gas sensing property ofα-MoO3 nanorod sensor to H2 S gas was studied based on CGS-1TP intelligent gas detection and analysis system.The results show that the preparedα-MoO3 material has a rod-like morphology with an average length and width of about 300 nm and 100 nm.Theα-MoO3 nanorod sensor prepared for gas response test of H2 S with a volume fraction of 20×10^-6 has an optimum operating temperature of 180℃,a corresponding gas response value of 14.92,and response and recovery time of 7 s and 11 s,respectively.At the same time,theα-MoO3 nanorod sensor exhibits high linearity and excellent stability to H2S with a volume fraction from 10×10^-6 to 100×10^-6.

关 键 词：水热法 α-MoO3纳米棒传感器 H2S 气敏响应 吸附 传感机理 

分 类 号：TP212.2[自动化与计算机技术—检测技术与自动化装置]