(Invited) Ionic Liquids in Gas Sensors: Recent Progress and Future Prospects
Our particular interest as a commercial gas sensor developer and manufacturer is whether and how RTILs could be leveraged to improve amperometric gas sensor performance, most importantly in ways that add value to the sensor product from the customer’s point of view. We are using a new, next generation amperometric gas sensing technology for a variety of toxic gases and gases of environmental interest including CO, H2S, NO2, SO2, O3, NH3 and others. This approach adapts the conventional ideas of amperometric gas sensing into a printed package that is very small and ultralow power for modern applications (Figure 1). Can RTILs be used effectively as electrolytes in amperometric gas sensors? How do RTILs compare to conventional aqueous acid electrolytes? Can RTILs impart new capabilities and performance improvements (sensitivity, response time, stability, operational life, tolerance of extreme environmental conditions) to amperometric sensors? How does one go about selecting the right RTIL from the vast array of possibilities? What are the materials compatibility issues? What about cost?
This presentation will address these issues from the perspective of several programs on gas sensor development for toxic and environmental gases at KWJ Engineering.
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