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RESEARCH PRODUCT
Chemical and electrochemical behaviour of 4,4’,4’’,4’’’-tetrakis(dimethylamino)-tetraphenylethylene in an oxidant environment: Toward a new sensor for NO2 and SO2 in gas phase
Ana M. CosteroAna M. CosteroSalvador GilSalvador GilSilvia Rodríguez-nuévalosAndrés SalaSamuel CeballosAntonio Doménechsubject
Metals and Alloys02 engineering and technologyTetraphenylethylene010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter PhysicsPhotochemistryElectrochemistry01 natural sciencesRedox0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsGas phasechemistry.chemical_compoundchemistryElectrochromismMaterials ChemistryNitrogen dioxideElectrical and Electronic Engineering0210 nano-technologyInstrumentationSulfur dioxidedescription
Abstract Electrochromic compounds are suitable candidates for being used in sensor design. Here we report the use of 4,4’,4’’,4’’’-tetrakis(dimethylamino)-tetraphenylethylene for detecting both NO2 and SO2. Whereas the sensing mechanism in the case of nitrogen dioxide is a simple chemical oxidation reaction, in the case of sulfur dioxide, the mechanism is much more complex and the reaction requires the presence of t-butylhydroperoxide to take place. By modifying the detection conditions both compounds can be detected in gas phase. Additionally, a wide electrochemical study has been carried out to understand the role played by the t-butylhydroperoxide in the reaction with sulfur dioxide.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-05-01 | Sensors and Actuators B: Chemical |