基于固体电解质的CH_4电化学传感器评述

Review on electrochemical CH_4 sensors based on solid electrolyte

基于固体电解质的电化学传感器可以在高温条件下实时、原位地检测气体组成。固体电解质和电极材质的不同会直接影响传感器的灵敏度、选择性以及响应时间。根据测量原理的不同,固体电解质基CH4电化学传感器通常分为电流型CH4传感器和电势型CH4传感器,对这两类传感器进行了详细的介绍,并对固体电解质基CH4电化学传感器在海底火山、热液喷口区等高温高压极端环境的研究与应用进行了展望。

Electrochemical sensor based on solid electrolyte are suitable for gas composition detection in situ and real time at high temperature. Difference of solid electrolyte and electrode material can directly affect sensitivity, selectivity and response time of sensor. According to difference of measuring principles, solid electrolyte based CH4 electrochemical sensors are classified as amperometric and potentiometric CH4 sensors, and these two types of sensors are described in detail, prospects of research and application of solid electrolyte based electrochemical sensors for detection of CH4 in submarine volcanoes and hydrothermal vents at high temperature and high pressure are also discussed.