金属氧化物对甲烷传感器检测性能的提升作用研究

Study on Enhancement Effect of Metal Oxides on Detection Performance of Methane Sensors

作为检测甲烷气体浓度的关键部件,甲烷传感器对于确保甲烷的安全应用至关重要。在检测过程中,催化燃烧式甲烷传感器通过引入氧化钴作为催化剂,能够显著提升自身检测性能。采用浸渍法,制备多种不同含量的氧化铈负载氧化钴催化剂材料。经过对材料比表面积测试,选择含有30%氧化钴的催化剂来制造甲烷传感器,并在测试系统中对制作的传感器进行了全面的性能测试,包括灵敏度、稳定性和选择性。结果显示,添加了氧化钴催化剂的甲烷传感器展现了出色的灵敏度,其灵敏度与甲烷浓度呈线性关系,且其对甲烷气体具有良好的选择性,能够在复杂的气体环境中准确识别甲烷气体。

As an important component for detecting methane gas concentration,methane sensors are crucial for ensuring the safe application of methane.During the detection process,the catalytic combustion methane sensor can significantly improve its detection performance by introducing cobalt oxide as a catalyst.Cerium oxide supported cobalt oxide catalyst material with different content was prepared by impregnation method.After testing the specific surface area of the material,a catalyst containing 30%cobalt oxide was selected to manufacture a methane sensor,and a comprehensive performance test was conducted on the sensor in the testing system,including sensitivity,stability,and selectivity.The results showed that the methane sensor with added cobalt oxide catalyst exhibited excellent sensitivity,with a linear relationship between sensitivity and methane concentration.It also had good selectivity for methane gas and was able to accurately identify methane gas in complex gas environments.