Gas Sensing Mechanisms Revealed with Emerging in-situ Characterization Techniques

As a key part of gas sensor research, the sensing mechanism determines the improvement direction of the performance and sensing characteristics of the developed sensor. Traditional gas sensing mechanism research is mainly based on off-line characterization results, and it is difficult to directly characterize the gas-solid interaction and structural evolution of materials under the working conditions of gas sensors. With the development of advanced characterization techniques, especially the emergence of in-situ characterization techniques, new methods have been provided for the revealing of sensing mechanisms.