la9b02991_si_001.pdf (180.66 kB)
Investigation of Protective Properties of Organic Layers toward Reactive Oxygen Species
journal contribution
posted on 2019-11-19, 20:37 authored by Yara Aceta, Philippe Hapiot, Yann R. LerouxThe antioxidant protective properties of polyaromatic
organic layers
were evaluated toward reactive oxygen species (ROS) using scanning
electrochemical microscopy in a foot-printing strategy. The layers
were prepared by electrografting of aryldiazonium salts. Where p-(methyl)phenyl films show only weak protective properties
toward ROS, p-(ethynyl)phenyl films evidence efficient
protection of the covered surfaces. Applied potentials and electrolytes
used during oxygen reduction reaction are critical parameters to control,
prevent, or reduce the influence of ROS production and hence enhance
the device lifetime.