Comparing thermoplastic electrode materials: Toward enhanced sensing of O2 and H2O2 in flow devices.

Autor:	Clark, Kaylee M., Cherwin, Amanda E., Boes, Jason, Russo, Matthew J., Henry, Charles S.
Předmět:	CARBON electrodes FLUIDIC devices CARBON composites SURFACE chemistry ELECTRODES POLYCAPROLACTONE
Zdroj:	Electroanalysis; Nov2024, Vol. 36 Issue 11, p1-13, 13p
Abstrakt:	Carbon composite electrodes often suffer from poor electrocatalytic activity and require complex, expensive, or time‐consuming modifications to effectively detect certain analytes such as O2 and H2O2. Thermoplastic electrodes (TPEs) are a new class of composite electrodes, fabricated by mixing commercial graphite with a thermopolymer, that exhibit superior electrochemical properties to typical carbon composite electrodes. This work investigates the properties of TPEs using two thermopolymer binders – polycaprolactone (PCL) and polystyrene (PS) – with sanded and heat‐pressed surface treatments. XPS and SEM analysis suggested that sanded TPEs have a higher density of graphitic edge planes and improved electrochemistry as a result. Electrochemical detection of O2 and H2O2 was demonstrated on sanded PS TPEs. Additionally, this work introduces the first use of a 3D‐printed TPE template as part of a 3D‐printed sensor module that is reversibly sealed with magnets as a proof‐of‐concept flow‐based sensor for detecting H2O2. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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