A Novel Electrochemical CO2 Sensor Utilizing Room Temperature Ionic Liquids
Next generation CO2 gas sensors require discrimination sensitivity between ambient CO2 and elevated CO2 and invariance with regards to CO2 detection and environmental factors. For this study, we report and discuss the effective application of room temperature ionic liquids (RTILs) towards the development of a stable electrochemical CO2 sensor that provides increased valuation towards commercial applications. Some studies revealed that RTILs can be useful as electrolytes in batteries, electrochemical cells, and electroplating. However, they have been recently used also in construction of electrochemical sensors. An electrochemical sensor is an analytical device, which converts a chemical response into an electrical signal. Most of the sensors are used in electrochemical measurements and have ability to modify with ionic liquids. Analysis of the RTIL electrochemical behavior in conjunction with CO2 has aided in the identification of robust combinations of RTIL/electrode towards environmental CO2 sensors. We have investigated RTILs of varying anionic moieties on micro surfaces using electrochemical impedance spectroscopy (EIS) and Chronoamperometry, we compare and contrast the initial response behaviors for these RTILs for these sensors.
|Performance of Carbon Dioxide (CO(2)) Gas Sensors|
Friday, May 19, 2017, 2 p.m.–3 p.m. ET
Durham, NC, United States