Gurlo Alexander, Riedel Ralf
Institute of Materials Science, Division of Dispersive Solids, Darmstadt University of Technology, Petersenstrasse 23, 64287 Darmstadt, Germany.
Angew Chem Int Ed Engl. 2007;46(21):3826-48. doi: 10.1002/anie.200602597.
The mechanistic description of gas sensing on inorganic, organic, and polymeric materials is of great scientific and technological interest. The understanding of surface and bulk reactions responsible for gas-sensing effects will lead to increased selectivity and sensitivity in the chemical determination of gases and thus to the development of better sensors. In recent years, spectroscopic tools have been developed to follow the physicochemical processes taking place in an active sensing element in real time and under operating conditions. Thus, the monitoring of the processes in "living" gas sensors is no longer an unsolvable problem. This Review gives an overview of in situ and operando spectroscopic techniques for the study of gas-sensing mechanisms on solid-state sensors.
对无机、有机和聚合物材料上气体传感的机理描述具有重大的科学和技术意义。了解引起气敏效应的表面和体相反应，将提高气体化学测定的选择性和灵敏度，从而推动性能更优的传感器的发展。近年来，已经开发出光谱工具，用于实时监测在操作条件下活性传感元件中发生的物理化学过程。因此，对“活性”气体传感器中过程的监测不再是一个无法解决的问题。本综述概述了用于研究固态传感器气敏机制的原位和操作光谱技术。
