Tailoring Electropolymerized Poly(3,4?ethylenedioxythiophene) Films for Oxygen Reduction Reaction

Oxygen reduction reaction (ORR) is a critical process for several electrocatalytic and photocatalytic devices. Poly(3,4-ethylenedioxythiophene), PEDOT, an efficient ORR catalyst, with hydrogen peroxide (H2O2) being the primary product. Although H2O2 green fuel batteries cells used as industrial oxidant, it toxic living systems. As such, its production should be limited when PEDOT films are in bioelectronic In this work, behavior of series electropolymerized investigated. By varying counterion (monomeric vs polymeric), including hydroxyl-terminated EDOT monomer polymer architecture, or adding conductivity enhancer mixture, authors aim to understand parameters governing properties. It that polymer's pristine doping level—influenced by type presence enhancer—controls pathway films. High levels intrinsic led major This work suggests strategies design conducting polymers optimized performance applications minimized harmful chemicals